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Author:
Andrea Krehbiel
New Resources
Ellipse, Hyperbola and Circle as Envelopes
Slope of a Straight Line: Run and Rise
History of Maths
Slope Field (1)
Isosceles Triangle: Quick Construction
Discover Resources
Pythagorean theorem geometrically explained
Hnitakerfi
The first activity and the notion of trajectory
Unscrewing a cylinder
Clive's Candles Linear Programming Example
Discover Topics
Addition
Probability
General Quadrilateral
Constructions
Integers