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  1. Elementary Geometry
    1. 4 sides
    2. 3 sides
    3. Blocks
    4. Puzzles

    Elementary Geometry

    Author:John Golden
    Topic:Geometry, Quadrilaterals, Triangles
    Shapes and properties. Many inspired by the work of Battista and Clements, and de Villiers.
    Elementary Geometry

    Table of Contents

    • 4 sides

      • Clown!
      • Quadrilateral - Can You Make It?
      • Square Not Square
      • Quadrilateral Predictions
      • Quadrilateral Tools
      • Trapezoids
      • G3 M6 TB L07 Interactive Quadrilaterals
      • 3-D Solids
    • 3 sides

      • Random Triangle
      • Triangle Truths
      • Triangle Types
      • Two Triangles
      • Are They Congruent?
    • Blocks

      • Pentominoes
      • Pattern Blocks
      • Deci-Blocks
      • Pentomino Set
    • Puzzles

      • Square Puzzle
      • 5-Piece Puzzle
      • Triangle to Square Puzzle
      • Build a Square Workshop
      • Tetrominos
    Next
    Clown!

    New Resources

    • z`]]
    • Function art 3D - waiting shed (v2)
    • What Do You See? (2)
    • apec
    • What Do You See?

    Discover Resources

    • Inv 1.2 A
    • FamilyFunctions
    • Angles and Arcs
    • Right Triangle Drawing
    • รูปคลี่พีระมิด
    • Types of regular polygons

    Discover Topics

    • Vectors 2D (Two-Dimensional)
    • Cosine
    • Scalene Triangles
    • Polygons
    • Variance
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