Geoboard Math for Teachers
A. GeoGebra Geoboard
B. The Math Learning Center〈Interactive Geoboard〉
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C. Dots and Grids
D. Geoboard image
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2S4 worksheet: Pinboard Triangles and Quadrilaterals
2E Polygons 2021/05/20
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3S2 EdUHK Animated Singalong Mathematics〈Triangle〉
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3S2 nrich〈Name That Triangle〉
3S2 NCTM〈Triangle Classification〉
4S1 Geoboard polygons
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