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Proof Without Words
Author:
Steve Phelps
Topic:
Pythagoras or Pythagorean Theorem
Drag the points. What do you notice? What does this prove? How does this prove it?
GeoGebra
New Resources
Rings of circles
What is an Isogonal Conjugate?
Cube of a Binomial - Volume Model
探究由平行線和截線所成的角
Lorenz Attractor: Multiple particles
Discover Resources
Kite Template (Scaffolded Investigation)
Square 3 + total design
Level Curves
Average Velocity & Speed
Fibonacci numbers
Discover Topics
Quadratic Functions
Integers
Linear Functions
Multiplication
General Quadrilateral