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Author:
Kathryn Ethridge
New Resources
Experiments with Transformations in the Plane
Golden Rectangles and Golden Spirals
探究長方形對角線上的正方形數目
Untitled
Flip 5 Coins.
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七巧板
T015a_Parabole_3points_Directionaxe_outil
Loco Loci
Slopes of Perpendicular Lines.
Perimeter and Area of a Rectangle
Getting Acquainted
Discover Topics
Unit Circle
Reflection
Expected Value
Area
Natural Numbers