一年级数学下册第1单元加与减(一)《跳伞表演》课件1(新版)北师大版.ppt

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跳伞表演,情 境 导 入,比 多几个?,比 少几个?,14,6,8,探 究 新 知,比 多几个?,比 多 8 个。,答:,14,7,7,比 少几个?,答:,比 少7个。,比一比,算一算。,今天比昨天少生了几个蛋?,答:今天比昨天少生了6个蛋。,9,9,9,1,1,1,1,算一算,你发现了什么?,1. 谁摘得多?多几个?,巩 固 练 习,2. 比 少几朵?,3. 谁多?多几只?,课 堂 小 结,今天我们进一步学习了“十几减几”的问题,你们有什么收获?求一个数比另一个数多多少用什么方法解答?,

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