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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,*,*,*,*,*,*,*,*,*,*,6,、,7,的分与合,SJ,一年级上册,七 分与合,5,4,3,3,4,1,2,2,1,4,3,2,1,1,2,3,课后作业,探索新知,当堂检测,课堂小结,6,和,7,的分与合,1,课堂探究点,2,课时流程,6,1,5,6,1,5,6,6,4,2,2,4,6,3,3,探究点,6,和,7,的分与合,7,7,1,6,1,6,7,7,2,5,2,5,7,7,3,4,3,4,小试牛刀,1.,小试牛刀,2.,哪两个数合起来是,7?,3.,6,2,4,7,?,3,4.,1,5,6,4,3,7,5,2,7,2,4,6,1,6,7,5.,从上往下数,每层各有几根?,哪两层合起来是,6,根?,哪两层合起来是,7,根?,木头是怎样堆放的?,略。,小试牛刀,一摆一摆,填一填。,5,1,1,5,4,2,2,4,3,3,二有次序地填一填。,6,6,1,5,5,2,4,4,3,三用线连一连。,1.,6,的分与合:,6,可以分成,1,和,5,,,5,和,1,,,2,和,4,,,4,和,2,,,3,和,3,;,1,和,5,,,5,和,1,,,2,和,4,,,4,和,2,,,3,和,3,都可以合成,6,。,2. 7,的分与合:,7,可以分成,1,和,6,,,6,和,1,,,2,和,5,,,5,和,2,,,3,和,4,,,4,和,3,;,1,和,6,,,6,和,1,,,2,和,5,,,5,和,2,,,3,和,4,,,4,和,3,都可以合成,7,。,归纳总结:,4,.,3,3,7,7,6,6,1,5,夯实基础,5,.,略,易错辨析,四填一填。,7,辨析:没有掌握符号“ ”的意义。,2,7,5,
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