Moveable Hand for RHR

作者：Lenore Horner

Orient the "hand" by moving the tips of the index finger and the second finger so that appropriate parts of the hand match the directions in your problem. Then check what direction the third part of the hand points.

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intro combinations R3.ggb
Aula 2.5- Aline, Paula e Roberta
hinged dissection triangle to square
Untitled

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指數函數
平均數
直線
圓
減法

Moveable Hand for RHR

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