Geometry Lesson Github - Io

  • Complete Code Example
  • Deploying to GitHub Pages
  • Lesson Topics to Include
  • Enhancements & Next Steps

    • One of the unique aspects of the github.io ecosystem is that you aren't just a consumer; you can be a creator. If you are a teacher or a student who codes:

    This open-source model means these lessons improve every year, unlike expensive software that goes obsolete.

    The geometry lesson github io format shines here. Instead of memorizing SOH-CAH-TOA, students adjust the angle of a unit circle and watch the sine wave draw itself in real-time. This visual connection is often the "aha moment" for struggling learners.

    Following the explanatory sections, Alex found a series of exercises and quizzes designed to test her understanding. These ranged from simple multiple-choice questions about the properties of different shapes to more complex problems requiring her to calculate the area of irregular polygons. geometry lesson github io

    The exercises provided immediate feedback, letting her know if her answers were correct or not. For incorrect responses, detailed explanations were available, helping her learn from her mistakes.

    The final section of the lesson introduced several project ideas. These included creating a geometric art piece using specific types of symmetry, designing a dream bedroom floor plan that applied geometric principles, or even a research project on the application of geometry in real-world scenarios like architecture or engineering.

    Create an index.html file in your repository. Complete Code Example Deploying to GitHub Pages Lesson

    Basic structure:

    <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Geometry Lesson: Master Shapes & Theorems</title>
    <link rel="stylesheet" href="style.css">
    <!-- KaTeX CSS -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.7/dist/katex.min.css">
</head>
<body>
    <header>
        <h1>📐 Geometry Lesson</h1>
        <nav>
            <a href="#points">Points & Lines</a>
            <a href="#angles">Angles</a>
            <a href="#triangles">Triangles</a>
            <a href="#circles">Circles</a>
        </nav>
    </header>
    <main>
        <section id="points">...</section>
        <section id="angles">...</section>
        <section id="triangles">...</section>
        <section id="circles">...</section>
    </main>
    <footer>© 2026 Interactive Geometry</footer>
    <script src="script.js"></script>
</body>
</html>

    | Library | Use Case | |---------|----------| | Math (native) | Trig, vectors, distances | | p5.js | Rapid prototyping of geometric algorithms | | Three.js | 3D polyhedra, ray tracing, perspective | | MathJax | Displaying theorems: $$ \frac\sin Aa = \frac\sin Bb $$ | | numeric.js | Linear algebra, solving geometric constraints |

    Example: Draw a right triangle with adjustable legs. One of the unique aspects of the github

    // Right triangle interactive diagram
const canvas = document.getElementById('triangleCanvas');
const ctx = canvas.getContext('2d');

    function drawTriangle(base, height) 
ctx.clearRect(0, 0, canvas.width, canvas.height);
    

    // Set origin at bottom-left (canvas Y goes down)
const x1 = 50, y1 = 200;  // bottom-left
const x2 = x1 + base, y2 = y1;  // bottom-right
const x3 = x1, y3 = y1 - height; // top-left
ctx.beginPath();
ctx.moveTo(x1, y1);
ctx.lineTo(x2, y2);
ctx.lineTo(x3, y3);
ctx.closePath();
ctx.fillStyle = '#bbf0d0';
ctx.fill();
ctx.strokeStyle = '#0f172a';
ctx.stroke();
// Label sides
ctx.fillStyle = '#1e293b';
ctx.fillText(`base = $basepx`, x1 + base/2, y1 + 20);
ctx.fillText(`height = $heightpx`, x1 - 40, y1 - height/2);
ctx.fillText(`hypotenuse = $Math.hypot(base, height).toFixed(1)px`, x1 + base/2, y1 - height/2);

    

    

    // Slider event
const baseSlider = document.getElementById('baseSlider');
const heightSlider = document.getElementById('heightSlider');
baseSlider.addEventListener('input', () => drawTriangle(+baseSlider.value, +heightSlider.value));
heightSlider.addEventListener('input', () => drawTriangle(+baseSlider.value, +heightSlider.value));
drawTriangle(120, 100);