2022年100以内数的加减法 .pdf

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1、学习必备欢迎下载100 以内数的加减法的综合练习教学内容：教科书第 3334 页教学目标：、在学生掌握 100 以内数的加减法的内容基础上，进一步巩固两位数加减一位数和两位数加减整十数的知识解决实际问题，进行自主练习。、培养学生学会观察、分析问题，发展学生的发散思维能力。、培养学生在学习探索中积极合作与交流的精神。教学过程：一、谈话激趣、创设情境小朋友们，谁想谈一谈，你在我们举行的“绿色行动”中有什么感受？（培养学生爱护小动物、保护大自然的情感。）二、综合练习1、选一选（综合练习第2 题）教师出示不同的三组计算题。师：你喜欢做哪一组题？选择你喜欢的一组写在练习本上。学习必备欢迎下载仔细观察这三

2、组算式，你会发现什么？2、找一找（综合练习第3 题）（1）让学生观察画面，在教师的引导下发现计算错误的算式，所在的叶子就是有病的叶子。（2）学生独立去找有病的叶子。（3）组织学生交流。说说自己找的哪片叶子，病在哪里？生病的原因？可以怎么治？3、编一编（综合练习第4 题）（1）教师要向学生讲清图中标明的数是小动物的重量。（2）让学生仔细观察图中都有什么动物？它们在干什么？谁能利用图中的意思说一个小故事？（3）学生独立进行编数学故事。注意在编数学故事过程中，要用到我们今天学到的数学问题，看谁编写的不但生动形象，而且能发现更多的数学问题？（4）同位尝试交流。谁愿意把你编的数学故事轻轻地讲给同位听一听

3、？考考你的好伙伴能不能解决你提出的数学问题？（5）全班汇报交流。谁还愿意把你编的数学故事讲给大家听一听？谁会解答他提文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2

4、H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A

5、4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P

6、4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6

7、K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ

8、1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV

9、6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3学习必备欢迎下载出的数学问题？学生可能提出以下问题：谁最重？谁最轻？小熊比小鹿重多少？怎样才能让跷跷板平衡等问题。让学生思考并解答，要说出思路。提一

10、提（综合练习第5 题）（1）指导学生有序的观察情境图。可以按照方位的顺序，也可以根据图中的“三句话”来理解图意（2）根据画面上的三组信息（栽树、天鹅、花朵），你能提出哪些数学问题？教师对学生提出的问题进行筛选和分类，选择有用的信息。学生可能提出以下加法问题：今年和去年一共栽了多少棵树？湖里和天上一共有多少只天鹅？红花和黄花一共有多少朵？比多少的减法问题：今年比去年多多少棵树？天上的天鹅比湖里的少多少只？（3）选择喜欢的问题、自主解决。不能解决的问题我们先把它放到问题口袋里，以后再来解决。探一探（综合练习第6 题）文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3

11、文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10

12、T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D

13、1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1

14、B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D

15、10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U

16、5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2

17、H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3学习必备欢迎下载（1）这一道题提供学有余力的学生选作，不作统一要求。这道题上面的两个数分别是下面两个数的和与差，教学时，可先引导学生发现这个规律，当学生不容易发现时，可作如下提示：请同学们算一算每片绿叶上的两个数的和与差是多少？仔细观察，你会发现什么？为什么这样填？（2）学生独立思考，也可先在小组内交流，教师要参与指导、评价。（3）学生发现规律

18、后再填出后面的数。三、畅谈体会、走进生活这节课你有什么新收获？师：其实，我们身边就是一个数学王国，两位数加减一位数和两位数加减整十数的知识在生活中的应用还很多，只要你留心观察，会发现更多的数学问题。四、课后反思：文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1

19、ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档

20、编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1

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22、1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3

23、文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3文档编码:CZ1A4D10T1U4 HV6P4U5D1W1 ZJ5I6K2H1B3