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Quadrilateral Angles
Author:
Steve Trenfield
Topic:
Angles
New Resources
Fun with stars
Parabola, Focus, Directrix
A simple damped pendulum simulation
Ellipse and String
Positions of cards while shuffling (in a standard deck of 52 cards)
Discover Resources
Parabola as the envelope of a family of lines
odd function demo
SAS-2
SAS ~ Theorem
Can you fit the four pieces into the square? Why?
Discover Topics
Tangent Line or Tangent
Natural Numbers
Secant Line or Secant
Unit Circle
Multiplication