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Proof Without Words

Author:Steve Phelps
Drag the green and blue points. Drag the slider. What does this prove? How does it prove it?

New Resources

  • Angle Addition: Warm Up Exercises
  • Trefoil Knot
  • Fourier Lissajous (Mechanical)
  • ¿Quién llegará más lejos en el mundial?
  • Slope Between 2 Points (Phase 2)

Discover Resources

  • Exploring the Fundamental Theorem of Algebra
  • poly_2
  • Properties of a Trapezium
  • IM1.8.4 Relative Frequencies
  • NC- ficha 34- eugenia 9b
  • Pythagorean Theorem

Discover Topics

  • Tree Diagrams
  • Vectors 3D (Three-Dimensional)
  • LCM and GCD
  • Exponential Functions
  • Quadrilaterals
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