教学内容苏教版《数学》一年级(下册)第61-62页。教材简析这部分内容教学“求两数相差多少的问题”。教材通过抓花片的游戏,利用学生已有的数学活动经验提出新问题;通过操作和讨论,帮助学生理解:从较大数中去掉较小数相同的部分,剩下的就是一个数比另一个数多的,用减法计算,而 Teaching content Soviet version of “Mathematics” first grade (second volume) 61-62 pages. Teaching material analysis This part of the content teaching “how many differences between the two numbers.” Teaching materials through the grasping the game, using the students experience of existing mathematical activities to raise new questions; through the operation and discussion, to help students understand: the smaller number from the larger number to remove the same part, the rest is a ratio of the other A number of more, using subtraction, and