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1、学习必备欢迎下载第五单元610 的认识和加减法第 3 节 10 的认识和有关 10 的加减法【第三课时】10 的加减法练习课一、教学目标1复习巩固 10 以内的数的数法、数序、比大小、数的组成,使学生知识形成网络。2通过练习引导学生看懂题意、图意。经历用已学知识和经验解决问题的过程,培养学生综合应用所学知识解决问题的能力。3使学生能通过学过的知识解决生活中的问题,体验成功的乐趣。二、教学重点复习巩固 10 以内的数的数法、数序、比大小、数的组成,使学生知识形成网络。三、教学难点综合运用 10 的相关知识,解决实际问题。四、教学具准备课件五、教学过程(一)复习导入1.算一算:看题快速说答案,看谁
2、算的又快又好。10-4=8+2=7+2=7+3=1+9=10-3=10-5=10-4=5+5=10-0=2.填一填(1)观察表格,你能说说该怎么想吗?(2)请你独立填写(3)根据表格,记忆10 的分解组成。学习必备欢迎下载(二)知识梳理孩子们,你们 10 的组成已经掌握的很好了。我们一起来利用学过的知识来解决吧。1.开动小火车+4-5+2 6(1)学生独立填写(2)填写的时候,用到了我们学习过的哪些知识。2.画一画,填一填(1)请你接着画一画,并填出算式。(2)说说你是怎么想的?(3)你又用到了哪些我们学过的知识。3.看图写算式(1)你会写吗?请你自己试一试。(2)结合图,说说每个算式表示的意
3、思。左边有 6 颗葡萄,右边有四颗,一共有10 颗。一共有 10 颗葡萄,吃了 6 颗还剩 4 颗。一共有 10 颗葡萄,去掉 4 颗还剩 6 颗。(3)小结:看来我们不光能列出算式,还能说出每个算式表示的意义,文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 Z
4、L10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档
5、编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H
6、7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2
7、 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6
8、文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V
9、7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6学习必备欢迎下载真棒。4在里填上“”“”或“=”(1
10、)同学们都会比较两个数的大小了,你会比较一个算式和一个数的大小吗?请看屏幕上的题。3+6 9 2+4 7 7+3 9(2)你能直接比较出左边算式和右边的数的大小吗?如果不能,怎么办?(3)学生分组讨论,共同探索比较算式和数的大小的方法。由学生试着完成第一题(4)谁能说一说自己是怎样比较大小的?先算出左边算式的得数,再用得数去和右边的数进行比较。(5)学生独立完成。5.盘子里有 10 个桃子,小猴子想把一些桃子分到另一个盘子里,猜一猜它可能拿走了几个,盘子里还剩几个?(1)快速说出一组答案。(2)怎么考虑能把所以的情况找全呢?有序思考是我们数学中常用的方法,当你有顺序的考虑问题时,才能做到不重复
11、不遗漏。(3)那你能不能利用有序思考,把下面空填写出来。看谁找的最全。3+()9 ()+28(三)拓展延伸1.说一说图中哪些可以用7+3=10表示文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9
12、T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2
13、W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW
14、6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5
15、L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10
16、E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:
17、CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6学习必备欢迎下载(1)说一说,7+3=10 表示什么意思?(2)在图里找一找,哪些可以用7+3=10表示。2.(1)说
18、一说算式的意思 5个算式都用等号连接,说明5 个算式的得数应该相等。(2)该怎么把数进行分组,有什么窍门吗?(大数和小数搭配)(3)学生自己独立填写。(4)交流汇报:0+9=1+8=2+7=3+6=4+5 文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10
19、E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:
20、CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 H
21、Q5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL
22、10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编
23、码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6文档编码:CW6J7A1V7H7 HQ5L9T3R6V2 ZL10E2W1C8A6
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