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Proof Without Words
Author:
Steve Phelps
Topic:
Pythagoras or Pythagorean Theorem
Drag the points. Drag the slider. What do you notice? What does this prove? How does this prove it?
GeoGebra
New Resources
Parallelograms: Quick Investigation
Blancmange curve (fractal)
alg2_05_05_01_applet_exp_flvs
Poorly Drawn Parallelograms
Dissections by Guillermo Bautista
Discover Resources
NCTM Triangle Area Exploration
Chapter 1_56_49
Trig Revision 2 1(a)
Euclid Proposition 9
Unit Tangent, Normal, Binormal Vector, Circle of Curvature
Discover Topics
Perimeter
Circle
Stochastic Process or Random Process
Cuboid
Quadratic Functions