三角形家族（三角形分類）〔數學奠基進教室，106年〕
Synopsis
特色：透過三角形家族的情境，進行三角形的製作、自由分類和邊角特徵的探索。 00:00 片頭01:04 [ 奠基活動設計說明]︱布置情境 ...
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