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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,第二级,第三级,第四级,第五级,2019/1/19,#,2024/11/3,第一关,9,1,7,1,6,1,5,1,8,1,4,5,6,7,8,2023/9/20第一关917161518145678,1,2024/11/3,第二关开火车,10,+,1,=,10,+,2,=,10,+,3,=,10,+,4,=,10,+,5,=,10,+,6,=,10,+,7,=,10,+,8,=,10,+,9,=,2023/9/20第二关开火车10+1=,2,2024/11/3,二、自主参与，探索新知,2023/9/20二、自主参与，探索新知,3,一共有几盒牛奶？,你可以想到几种办法解决问题？,一共有几盒牛奶？你可以想到几种办法解决问题？,4,10,11,12,13,9,11,12,13,9,5,6,7,8,2,4,3,1,数数法：,101112139111213956782431数数法：,5,接数法：,箱子里有,9,盒，然后再接着数,10,11,12,13,接数法：箱子里有9盒，然后再接着数10111213,6,凑十法：,凑十法：,7,2024/11/3,找规律,9+,2,=,9+,3,=,9+,4,=,9+,5,=,9+,6,=,9+7=,9+,8,=,9+,9,=,第二关,2023/9/20找规律9+2=第二关,8,2024/11/3,找规律,9+,2,=,9+,3,=,9+,4,=,9+,5,=,9+,6,=,9+7=,9+,8,=,9+,9,=,11,12,13,14,15,16,17,18,第二关,2023/9/20找规律9+2=11第二关,9,2024/11/3,找规律,9+,2,=,9+,3,=,9+,4,=,9+,5,=,9+,6,=,9+,7,=,9+,8,=,9+,9,=,1,1,1,2,1,3,1,4,1,5,1,6,1,7,1,8,第二关,2023/9/20找规律9+2=11第二关,10,算一算。,2,4,5,7,0,1,9,8,10,6,3,算一算。245701981063,11,2024/11/3,第三关,2023/9/20第三关,12,2024/11/3,第三关,2023/9/20第三关,13,2024/11/3,再见,2023/9/20再见,14,
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