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|Blog about transformational geometry, subtitled "picture = 100 formulas." Posts, which feature Butler's original GeoGebra applets and teaching notes, date back to March, 2014: "One Formula ... to Rule them All," "Circles Part 2: Angle Relationships," "Clock Tangents: Circles Part 3b," and more. Butler teaches high school, likes pictures and movies, "loves math, and hates formulas (or at least the idea that we need so many of them)." See also his other, more narrative blog.|
|Levels:||High School (9-12)|
|Resource Types:||Graphics, Multimedia, Web-Based Discussions, Web Interactive/Java|
|Math Topics:||Communicating Math, Polyhedra, Euclidean Plane Geometry|
|Math Ed Topics:||Simulations, Visualizations|
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