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數學好好玩
- Taipei Kuei Shan School
- Dec 30, 2016
- 1 min read
動手操作了了解圓面積公式的由來
為什麼圓面積的公式是半徑*半徑*3.14呢?
剛進入圓面積這個單元時,孩子們多數都背得出圓面積的公式,
當深入往下探究:為何圓面積的公式要這麼算時,
大家都啞口無言了!
「知其所以然」是建構邏輯的重要歷程,
藉由動手操作,讓孩子理解其公式產出的由來喔!



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