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  <!-- ── DSE Math Practice (Question Bank) ── -->
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      <image:title>Equations of Straight Lines — Interactive Visualization</image:title>
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    <lastmod>2026-10-03</lastmod>
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      <image:title>Basic Properties of Circles — Interactive Visualization</image:title>
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    <lastmod>2026-10-03</lastmod>
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    <priority>0.8</priority>
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      <image:title>Centroid of a Triangle — Interactive Visualization</image:title>
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      <image:title>Incentre of a Triangle — Interactive Visualization</image:title>
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      <image:title>Orthocentre of a Triangle — Interactive Visualization</image:title>
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    <lastmod>2026-10-03</lastmod>
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      <video:title>Locus (軌跡) — Interactive Visualization</video:title>
      <video:description>Drag points and watch the locus trace in real time for HKDSE locus questions.</video:description>
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      <video:description>Absolute value transformations, asymptotes, and graphical equation solving for HKDSE.</video:description>
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    <lastmod>2026-10-03</lastmod>
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    <lastmod>2026-10-03</lastmod>
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    <priority>0.7</priority>
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  <!-- ── HKDSE M1 / M2 all-topics pages ── -->
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  <!-- ── HKDSE Formula Sheet ── -->
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    <lastmod>2026-10-03</lastmod>
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  <!-- ── HKDSE Topic Pages (Chinese, zh-HK) — same media as English equivalents ── -->
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  <url><loc>https://sketchmath.com/zh-hk/hkdse/polynomials</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/more_equations</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
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  <url><loc>https://sketchmath.com/zh-hk/hkdse/sequences_series</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.65</priority></url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/variations</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.65</priority></url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/dispersion</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/permutations</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.65</priority></url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/probability</loc><lastmod>2026-10-03</lastmod><changefreq>monthly</changefreq><priority>0.65</priority></url>

  <!-- ── DSE Practice Hub (by Form) ── -->
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    <lastmod>2026-10-03</lastmod>
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  <!-- ── Blog ── -->
  <url>
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    <lastmod>2026-03-18</lastmod>
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      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-common-mistakes.webp</video:thumbnail_loc>
      <video:title>Common Mistakes in M1 (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Common Mistakes in M1 in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-common-mistakes.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-common-mistakes</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-exam-format-and-time-management</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-exam-format-and-time-management.webp</image:loc>
      <image:title>Exam Format and Time Management (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-exam-format-and-time-management.webp</video:thumbnail_loc>
      <video:title>Exam Format and Time Management (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Exam Format and Time Management in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-exam-format-and-time-management.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-exam-format-and-time-management</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-syllabus</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-syllabus.webp</image:loc>
      <image:title>M1 Syllabus (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-syllabus.webp</video:thumbnail_loc>
      <video:title>M1 Syllabus (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for M1 Syllabus in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-syllabus.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-syllabus</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-formula-sheet</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-formula-sheet.webp</image:loc>
      <image:title>M1 Formula Sheet (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-formula-sheet.webp</video:thumbnail_loc>
      <video:title>M1 Formula Sheet (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for M1 Formula Sheet in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-formula-sheet.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-formula-sheet</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-conditional-probability-bayes</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-conditional-probability-bayes.webp</image:loc>
      <image:title>Conditional Probability and Bayes’ Theorem (DSE M1) — Interactive Graph</image:title>
    </image:image>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-conditional-probability-bayes</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-discrete-random-variables</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-discrete-random-variables.webp</image:loc>
      <image:title>Discrete Random Variables: Expectation and Variance (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-discrete-random-variables.webp</video:thumbnail_loc>
      <video:title>Discrete Random Variables: Expectation and Variance (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Discrete Random Variables: Expectation and Variance in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-discrete-random-variables.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-discrete-random-variables</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-binomial-distribution</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-binomial-distribution.webp</image:loc>
      <image:title>The Binomial Distribution (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-binomial-distribution.webp</video:thumbnail_loc>
      <video:title>The Binomial Distribution (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for The Binomial Distribution in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-binomial-distribution.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-binomial-distribution</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-poisson-distribution</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-poisson-distribution.webp</image:loc>
      <image:title>The Poisson Distribution (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-poisson-distribution.webp</video:thumbnail_loc>
      <video:title>The Poisson Distribution (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for The Poisson Distribution in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-poisson-distribution.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-poisson-distribution</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-binomial-vs-poisson</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-binomial-vs-poisson.webp</image:loc>
      <image:title>Binomial or Poisson? Choosing the Distribution (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-binomial-vs-poisson.webp</video:thumbnail_loc>
      <video:title>Binomial or Poisson? Choosing the Distribution (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Binomial or Poisson? Choosing the Distribution in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-binomial-vs-poisson.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-binomial-vs-poisson</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-normal-distribution</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-normal-distribution.webp</image:loc>
      <image:title>The Normal Distribution: Definition and Properties (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-normal-distribution.webp</video:thumbnail_loc>
      <video:title>The Normal Distribution: Definition and Properties (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for The Normal Distribution: Definition and Properties in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-normal-distribution.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-normal-distribution</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-standard-normal-table</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-standard-normal-table.webp</image:loc>
      <image:title>Standardisation and the Standard Normal Table (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-standard-normal-table.webp</video:thumbnail_loc>
      <video:title>Standardisation and the Standard Normal Table (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Standardisation and the Standard Normal Table in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-standard-normal-table.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-standard-normal-table</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-normal-distribution-applications</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-normal-distribution-applications.webp</image:loc>
      <image:title>Applications of the Normal Distribution (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-normal-distribution-applications.webp</video:thumbnail_loc>
      <video:title>Applications of the Normal Distribution (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Applications of the Normal Distribution in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-normal-distribution-applications.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-normal-distribution-applications</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-sampling-distribution</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-sampling-distribution.webp</image:loc>
      <image:title>Sampling Distribution and Point Estimates (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-sampling-distribution.webp</video:thumbnail_loc>
      <video:title>Sampling Distribution and Point Estimates (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Sampling Distribution and Point Estimates in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-sampling-distribution.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-sampling-distribution</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m1-confidence-interval</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m1-confidence-interval.webp</image:loc>
      <image:title>Confidence Interval for a Population Mean (DSE M1) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m1-confidence-interval.webp</video:thumbnail_loc>
      <video:title>Confidence Interval for a Population Mean (DSE M1) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Confidence Interval for a Population Mean in HKDSE M1, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m1-confidence-interval.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m1-confidence-interval</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-vectors</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-vectors.webp</image:loc>
      <image:title>Introduction to Vectors (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-vectors.webp</video:thumbnail_loc>
      <video:title>Introduction to Vectors (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Introduction to Vectors in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-vectors.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-vectors</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-dot-and-cross-product</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-dot-and-cross-product.webp</image:loc>
      <image:title>Scalar Product and Vector Product (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-dot-and-cross-product.webp</video:thumbnail_loc>
      <video:title>Scalar Product and Vector Product (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Scalar Product and Vector Product in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-dot-and-cross-product.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-dot-and-cross-product</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-applications-of-vectors</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-applications-of-vectors.webp</image:loc>
      <image:title>Applications of Vectors (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-applications-of-vectors.webp</video:thumbnail_loc>
      <video:title>Applications of Vectors (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Applications of Vectors in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-applications-of-vectors.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-applications-of-vectors</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-determinants</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-determinants.webp</image:loc>
      <image:title>Determinants (DSE M2) — Interactive Graph</image:title>
    </image:image>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-determinants</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-matrices</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-matrices.webp</image:loc>
      <image:title>Matrices (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-matrices.webp</video:thumbnail_loc>
      <video:title>Matrices (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Matrices in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-matrices.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-matrices</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-systems-of-linear-equations</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-systems-of-linear-equations.webp</image:loc>
      <image:title>Systems of Linear Equations (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-systems-of-linear-equations.webp</video:thumbnail_loc>
      <video:title>Systems of Linear Equations (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Systems of Linear Equations in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-systems-of-linear-equations.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-systems-of-linear-equations</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-limits</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-limits.webp</image:loc>
      <image:title>Limits (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-limits.webp</video:thumbnail_loc>
      <video:title>Limits (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Limits in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-limits.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-limits</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-differentiation</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-differentiation.webp</image:loc>
      <image:title>Differentiation (DSE M2) — Interactive Graph</image:title>
    </image:image>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-differentiation</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-applications-of-differentiation</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-applications-of-differentiation.webp</image:loc>
      <image:title>Applications of Differentiation (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-applications-of-differentiation.webp</video:thumbnail_loc>
      <video:title>Applications of Differentiation (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Applications of Differentiation in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-applications-of-differentiation.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-applications-of-differentiation</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-indefinite-integration</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-indefinite-integration.webp</image:loc>
      <image:title>Indefinite Integration (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-indefinite-integration.webp</video:thumbnail_loc>
      <video:title>Indefinite Integration (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Indefinite Integration in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-indefinite-integration.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-indefinite-integration</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-definite-integration</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-definite-integration.webp</image:loc>
      <image:title>Definite Integration (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-definite-integration.webp</video:thumbnail_loc>
      <video:title>Definite Integration (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Definite Integration in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-definite-integration.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-definite-integration</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-area-and-volume</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-area-and-volume.webp</image:loc>
      <image:title>Area and Volume of Revolution (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-area-and-volume.webp</video:thumbnail_loc>
      <video:title>Area and Volume of Revolution (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Area and Volume of Revolution in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-area-and-volume.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-area-and-volume</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-mathematical-induction</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-mathematical-induction.webp</image:loc>
      <image:title>Mathematical Induction (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-mathematical-induction.webp</video:thumbnail_loc>
      <video:title>Mathematical Induction (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Mathematical Induction in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-mathematical-induction.mp4</video:content_loc>
      <video:duration>8</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-mathematical-induction</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-binomial-theorem</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-binomial-theorem.webp</image:loc>
      <image:title>The Binomial Theorem (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-binomial-theorem.webp</video:thumbnail_loc>
      <video:title>The Binomial Theorem (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for The Binomial Theorem in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-binomial-theorem.mp4</video:content_loc>
      <video:duration>8</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-binomial-theorem</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-trigonometry</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-trigonometry.webp</image:loc>
      <image:title>More about Trigonometric Functions (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-trigonometry.webp</video:thumbnail_loc>
      <video:title>More about Trigonometric Functions (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for More about Trigonometric Functions in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-trigonometry.mp4</video:content_loc>
      <video:duration>11</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-trigonometry</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-e-and-natural-log</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-e-and-natural-log.webp</image:loc>
      <image:title>Introduction to e (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-e-and-natural-log.webp</video:thumbnail_loc>
      <video:title>Introduction to e (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Introduction to e in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-e-and-natural-log.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-e-and-natural-log</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-odd-even-functions</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-odd-even-functions.webp</image:loc>
      <image:title>Odd and Even Functions (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-odd-even-functions.webp</video:thumbnail_loc>
      <video:title>Odd and Even Functions (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Odd and Even Functions in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-odd-even-functions.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-odd-even-functions</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2.webp</image:loc>
      <image:title>DSE M2 — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2.webp</video:thumbnail_loc>
      <video:title>DSE M2 — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph from the DSE M2 notes on SketchMath.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.85</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-3d-vectors-visualisation</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-3d-vectors-visualisation.webp</image:loc>
      <image:title>How to Visualise 3D Vectors (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-3d-vectors-visualisation.webp</video:thumbnail_loc>
      <video:title>How to Visualise 3D Vectors (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for How to Visualise 3D Vectors in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-3d-vectors-visualisation.mp4</video:content_loc>
      <video:duration>6</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-3d-vectors-visualisation</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-integration-which-method</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-integration-which-method.webp</image:loc>
      <image:title>Integration: Which Method to Use (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-integration-which-method.webp</video:thumbnail_loc>
      <video:title>Integration: Which Method to Use (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Integration: Which Method to Use in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-integration-which-method.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-integration-which-method</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-common-mistakes</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-common-mistakes.webp</image:loc>
      <image:title>Common Mistakes in M2 (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-common-mistakes.webp</video:thumbnail_loc>
      <video:title>Common Mistakes in M2 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Common Mistakes in M2 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-common-mistakes.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-common-mistakes</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-exam-format-and-time-management</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-exam-format-and-time-management.webp</image:loc>
      <image:title>Exam Format and Time Management (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-exam-format-and-time-management.webp</video:thumbnail_loc>
      <video:title>Exam Format and Time Management (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for Exam Format and Time Management in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-exam-format-and-time-management.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-exam-format-and-time-management</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-syllabus</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-syllabus.webp</image:loc>
      <image:title>M2 Syllabus: What Is In and Out (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-syllabus.webp</video:thumbnail_loc>
      <video:title>M2 Syllabus: What Is In and Out (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for M2 Syllabus: What Is In and Out in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-syllabus.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-syllabus</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-formula-sheet</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-modules/m2-formula-sheet.webp</image:loc>
      <image:title>M2 Formula Sheet (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-modules/m2-formula-sheet.webp</video:thumbnail_loc>
      <video:title>M2 Formula Sheet (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for M2 Formula Sheet in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-modules/m2-formula-sheet.mp4</video:content_loc>
      <video:duration>11</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-formula-sheet</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-past-papers</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2019-q9.webp</image:loc>
      <image:title>DSE M2 Past Paper Solutions with Video (2012–2022) (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2019-q9.webp</video:thumbnail_loc>
      <video:title>DSE M2 Past Paper Solutions with Video (2012–2022) (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for DSE M2 Past Paper Solutions with Video (2012–2022) in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2019-q9.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
  </url>
  <url><loc>https://sketchmath.com/zh-hk/hkdse/m2-past-papers</loc><lastmod>2026-10-05</lastmod><changefreq>monthly</changefreq><priority>0.75</priority></url>
  <url>
    <loc>https://sketchmath.com/hkdse/m2-past-paper-2012</loc>
    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q5.webp</image:loc>
      <image:title>2012 DSE M2 Past Paper Solutions Q5 (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q5.webp</video:thumbnail_loc>
      <video:title>2012 DSE M2 Past Paper Solutions Q5 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2012 DSE M2 Past Paper Solutions Q5 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q5.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q6.webp</image:loc>
      <image:title>2012 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q6.webp</video:thumbnail_loc>
      <video:title>2012 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2012 DSE M2 Past Paper Solutions Q6 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q6.mp4</video:content_loc>
      <video:duration>7</video:duration>
    </video:video>
    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2012-q7.webp</image:loc>
      <image:title>2012 DSE M2 Past Paper Solutions Q7 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2012 DSE M2 Past Paper Solutions Q7 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2012 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2012 DSE M2 Past Paper Solutions Q9 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2013 DSE M2 Past Paper Solutions Q4 (DSE M2) — Interactive Graph</image:title>
    </image:image>
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      <video:title>2013 DSE M2 Past Paper Solutions Q4 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2013 DSE M2 Past Paper Solutions Q4 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2013-q4.mp4</video:content_loc>
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      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2013-q5.webp</image:loc>
      <image:title>2013 DSE M2 Past Paper Solutions Q5 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2013 DSE M2 Past Paper Solutions Q5 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2013-q6.webp</image:loc>
      <image:title>2013 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2013 DSE M2 Past Paper Solutions Q6 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2013 DSE M2 Past Paper Solutions Q10 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2013 DSE M2 Past Paper Solutions Q10 in HKDSE M2, with the worked example it illustrates.</video:description>
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    <loc>https://sketchmath.com/hkdse/m2-past-paper-2014</loc>
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      <image:title>2014 DSE M2 Past Paper Solutions Q3 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2014 DSE M2 Past Paper Solutions Q3 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2014-q3.mp4</video:content_loc>
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      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2014-q6.webp</image:loc>
      <image:title>2014 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2014 DSE M2 Past Paper Solutions Q6 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2014-q6.mp4</video:content_loc>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2014-q8.webp</image:loc>
      <image:title>2014 DSE M2 Past Paper Solutions Q8 (DSE M2) — Interactive Graph</image:title>
    </image:image>
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      <video:description>Animated GeoGebra graph for 2014 DSE M2 Past Paper Solutions Q8 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2014 DSE M2 Past Paper Solutions Q13 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2014 DSE M2 Past Paper Solutions Q13 in HKDSE M2, with the worked example it illustrates.</video:description>
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  <url>
    <loc>https://sketchmath.com/hkdse/m2-past-paper-2015</loc>
    <lastmod>2026-10-05</lastmod>
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      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2015-q9.webp</image:loc>
      <image:title>2015 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2015 DSE M2 Past Paper Solutions Q9 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2015-q9.mp4</video:content_loc>
      <video:duration>7</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2015-q10.webp</image:loc>
      <image:title>2015 DSE M2 Past Paper Solutions Q10 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2015 DSE M2 Past Paper Solutions Q10 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <video:duration>6</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2015-q12.webp</image:loc>
      <image:title>2015 DSE M2 Past Paper Solutions Q12 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2015 DSE M2 Past Paper Solutions Q12 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2016 DSE M2 Past Paper Solutions Q3 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2016 DSE M2 Past Paper Solutions Q3 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2016-q3.mp4</video:content_loc>
      <video:duration>7</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2016-q7.webp</image:loc>
      <image:title>2016 DSE M2 Past Paper Solutions Q7 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2016 DSE M2 Past Paper Solutions Q7 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <video:duration>6</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2016-q9.webp</image:loc>
      <image:title>2016 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2016 DSE M2 Past Paper Solutions Q9 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2016 DSE M2 Past Paper Solutions Q12 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2016 DSE M2 Past Paper Solutions Q12 in HKDSE M2, with the worked example it illustrates.</video:description>
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  <url>
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    <lastmod>2026-10-05</lastmod>
    <changefreq>monthly</changefreq>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2017-q6.webp</image:loc>
      <image:title>2017 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2017 DSE M2 Past Paper Solutions Q6 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2017-q6.mp4</video:content_loc>
      <video:duration>7</video:duration>
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      <image:title>2017 DSE M2 Past Paper Solutions Q8 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2017 DSE M2 Past Paper Solutions Q8 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2017-q8.mp4</video:content_loc>
      <video:duration>7</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2017-q9.webp</image:loc>
      <image:title>2017 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2017 DSE M2 Past Paper Solutions Q9 in HKDSE M2, with the worked example it illustrates.</video:description>
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  <url>
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      <image:title>2018 DSE M2 Past Paper Solutions Q5 (DSE M2) — Interactive Graph</image:title>
    </image:image>
    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q5.webp</video:thumbnail_loc>
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      <video:description>Animated GeoGebra graph for 2018 DSE M2 Past Paper Solutions Q5 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q5.mp4</video:content_loc>
      <video:duration>7</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q8.webp</image:loc>
      <image:title>2018 DSE M2 Past Paper Solutions Q8 (DSE M2) — Interactive Graph</image:title>
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    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q8.webp</video:thumbnail_loc>
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      <video:description>Animated GeoGebra graph for 2018 DSE M2 Past Paper Solutions Q8 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q8.mp4</video:content_loc>
      <video:duration>7</video:duration>
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    <image:image>
      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q9.webp</image:loc>
      <image:title>2018 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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    <video:video>
      <video:thumbnail_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q9.webp</video:thumbnail_loc>
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      <video:description>Animated GeoGebra graph for 2018 DSE M2 Past Paper Solutions Q9 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2018-q9.mp4</video:content_loc>
      <video:duration>7</video:duration>
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      <image:title>2019 DSE M2 Past Paper Solutions Q8 (DSE M2) — Interactive Graph</image:title>
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      <image:title>2019 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2019 DSE M2 Past Paper Solutions Q12 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2019-q12.mp4</video:content_loc>
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      <video:description>Animated GeoGebra graph for 2020 DSE M2 Past Paper Solutions Q6 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2020 DSE M2 Past Paper Solutions Q7 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2020 DSE M2 Past Paper Solutions Q7 in HKDSE M2, with the worked example it illustrates.</video:description>
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    <image:image>
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      <image:title>2020 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <image:title>2020 DSE M2 Past Paper Solutions Q12 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2020 DSE M2 Past Paper Solutions Q12 in HKDSE M2, with the worked example it illustrates.</video:description>
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    <lastmod>2026-10-05</lastmod>
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    <image:image>
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      <image:title>2021 DSE M2 Past Paper Solutions Q5 (DSE M2) — Interactive Graph</image:title>
    </image:image>
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      <video:title>2021 DSE M2 Past Paper Solutions Q5 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2021 DSE M2 Past Paper Solutions Q5 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2021-q6.webp</image:loc>
      <image:title>2021 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</image:title>
    </image:image>
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      <video:title>2021 DSE M2 Past Paper Solutions Q6 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2021 DSE M2 Past Paper Solutions Q6 in HKDSE M2, with the worked example it illustrates.</video:description>
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    <image:image>
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      <image:title>2021 DSE M2 Past Paper Solutions Q7 (DSE M2) — Interactive Graph</image:title>
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      <video:title>2021 DSE M2 Past Paper Solutions Q7 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2021 DSE M2 Past Paper Solutions Q7 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2021-q10.webp</image:loc>
      <image:title>2021 DSE M2 Past Paper Solutions Q10 (DSE M2) — Interactive Graph</image:title>
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      <video:title>2021 DSE M2 Past Paper Solutions Q10 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2021 DSE M2 Past Paper Solutions Q10 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2021 DSE M2 Past Paper Solutions Q12 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2021 DSE M2 Past Paper Solutions Q12 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <video:title>2022 DSE M2 Past Paper Solutions Q4 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2022 DSE M2 Past Paper Solutions Q4 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2022-q4.mp4</video:content_loc>
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      <image:title>2022 DSE M2 Past Paper Solutions Q7 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2022 DSE M2 Past Paper Solutions Q7 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2022 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</image:title>
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      <video:title>2022 DSE M2 Past Paper Solutions Q9 (DSE M2) — Interactive Graph</video:title>
      <video:description>Animated GeoGebra graph for 2022 DSE M2 Past Paper Solutions Q9 in HKDSE M2, with the worked example it illustrates.</video:description>
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      <image:title>2022 DSE M2 Past Paper Solutions Q12 (DSE M2) — Interactive Graph</image:title>
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      <video:description>Animated GeoGebra graph for 2022 DSE M2 Past Paper Solutions Q12 in HKDSE M2, with the worked example it illustrates.</video:description>
      <video:content_loc>https://sketchmath.com/media/hkdse-m2-past-papers/m2-pp-2022-q12.mp4</video:content_loc>
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  <!-- END hkdse-modules -->
</urlset>
