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单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,五级,*,*,*,*,猜数游戏,(,建议一课时完成),三,加与减(一),BS,一年级上册,课后作业,探索新知,当堂检测,课堂小结,6,的加减法,1,课堂探究点,2,课时流程,填一填。,5 4,2 4 1 3 1 2,3,5,1,3,4,2,6,探究点,6,的加减法,想一想, 有多少个 ?,猜一猜, 有多少个 ?,6,3,3,分一分,填一填。,6,0,5,1,4,2,3,3,2,4,1,5,0,6,分一分,填一填。,说一说。,1,哪两张卡片上的菠萝合起来是,6,?连一连,写一写。,=,+,2,6,4,=,+,1,6,5,=,+,3,6,3,小试牛刀,2,看图列算式。,(1),=,-,5,1,6,(2),=,-,4,2,6,3,分一分,填一填。,5,6,0,1,2,4,6,3,1,4,3,2,5,分苹果略,4,看图列算式。,(1),=,+,3,6,3,=,-,2,4,6,(2),=,-,5,1,6,(3),归纳总结:,1.,告诉我们两部分,求总数用加法;,2.,告诉我们总数和一部分,求另一部分用减法;,3. 6,可以分成,0,和,6,,,1,和,5,,,2,和,4,,,3,和,3,,,4,和,2,,,5,和,1,,,6,和,0,。,夯实基础,(,1,6,5,1,5,6,3,6,3,3,3,6,6,个 放在,2,个盘子里,可以怎么放?,说一说。,3,6,0,6,5,6,4,6,51 4 6 3 6 2 6,6,5 6,4 6,3 6,2,画一画,填一填。,1,1,2,2,3,3,4,4,说一说,玩一玩。,
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