新版人教版二年级数学下册总复习教案(共7课时)

新版人教版二年级数学下册总复习教案

(共7课时)

本次课程主要教授表内除法的知识和技能，让学生了解在什么样的问题中需要使用除法进行解决。同时，通过实际问题的演示和练，让学生能够比较熟练地进行除法计算，感受到除法计算的便捷性。

教学重点和难点

本次课程的重点是复表内除法，难点则在于对学生容易出错的内容进行针对性的练。

教学步骤

1.引入问题

16名同学在公园里玩耍，他们想租儿童小车，小车有2人和4人的，如果都租2人的需要租几辆车？租4人的需要租几辆车？请同学们帮助他们一下。

2.讨论解答方法

让学生自己尝试解答问题，并组成小组进行讨论，共同寻找解答方法。

3.汇报解答方法

让学生汇报自己的解答方法，并列出相应的计算式子。

4.口诀练

让学生补充完整口诀，并进行口算练。

5.计算练

让学生进行除法计算的练，巩固所学知识。

6.解决问题

让学生通过实际问题的演示和解决，进一步加深对除法计算的理解和掌握。

教学内容

本次课程主要教授混合运算的知识和技能，让学生能够熟练地进行多种运算的组合计算。

教学目标

知识与技能：让学生掌握混合运算的方法和技巧，能够熟练地进行多种运算的组合计算。

过程与方法：通过实际问题的演示和练，让学生掌握解决问题的方法和思路。

情感态度与价值观：培养学生对数学研究的兴趣和热爱。

教学重点和难点

本次课程的重点是混合运算的方法和技巧，难点则在于如何解决实际问题，让学生能够熟练地运用所学知识和技能。

教学步骤

1.引入问题

通过实际问题的引入，让学生了解混合运算的概念和应用场景。

2.讲解方法和技巧

讲解混合运算的方法和技巧，让学生能够熟练地进行多种运算的组合计算。

3.实际问题演示

通过实际问题的演示，让学生能够掌握解决问题的方法和思路，并熟练地运用所学知识和技能。

4.练巩固

让学生进行混合运算的练，巩固所学知识和技能。

5.小结回顾

对本次课程所学内容进行小结回顾，并强调重点和难点。同时，鼓励学生对数学研究保持兴趣和热爱。

Knowledge and Skills: In reviewing。review the order of ns for mixed ns.

Process and Methods: Guide students to explore that when there are two steps of n in an n。it is necessary to perform the ns in a certain order。nal Attitude and n: Let students feel the close n een mathematics and daily life during the learning process。enhance their awareness of applying mathematics。and initially feel the close n een mixed ns and daily life.

Teaching Focus and Difficulties

Focus: Systematically organize and review mixed ns.

Difficulty: Organizing and reviewing the learned knowledge.

Teaching Steps

Lesson 2: Mixed ns

1.Review the order of mixed ns

1) Organize the order of mixed ns。state the order of ns for each n。and then calculate.

4×6÷8= 72－5×8= 30÷6＋29＝

7×(36－30)＝ 48－18＋32＝ (14＋21)÷7＝

n: When reading the problem。think about what to calculate first and what to calculate next.

n: 1.Can you classify these 6 ns。And why do you classify them like this?

2.What order to calculate each category?

1) In mixed ns involving n。n。n。and n。calculate n and n before n and n.

2) Only involves n and n (or n and n)。calculate from left to right in order.

3) If there are parentheses。calculate the n inside the parentheses first.

2) Comparative exercise to consolidate the order of mixed ns

Compare the order of ns and n results of the two ns in each group.

18＋27÷9.4×8－3

18＋27)÷9.4×(8－3)

n: What are the similarities and differences een the two ns in each group?

Teaching Content

Unit 6: n with Remainders.

Teaching Objectives

Lesson 3: n with Remainders

Knowledge and Skills: Allow students to experience the process of abstracting the phenomenon of having a remainder after dividing equally into the process of n with remainder。and initially understand the meaning of n with remainder and the meaning of remainder.

Process and Methods: Allow students to accumulate learning activities such as n。n。and n in the process of understanding n with remainder and exploring the n method of n with remainder.

nal Attitude and Values: Guide students to develop their ability to transfer knowledge through analogies.