簡約律と図形指導 : 数学の発見について

書誌事項

タイトル別名
  • カンヤク リツ ト ズケイ シドウ スウガク ノ ハッケン ニ ツイテ
  • Cancellation law and teaching figures

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説明

The definition of cancellation law is very simple. Everyone can understand it. But there are lots of problems that students can solve if they happen to notice to use the cancellation law. Such problems often contain important concepts of mathematics. Length, area and angles are such concepts. We consider the definitions of them. In particular we consider the relation between degree and radian of angles.

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