Solving problems-the difference between multiplication and addition.

Teaching content: Example 7 and exercise 14 on page 63 of the textbook.

Teaching objectives:

Knowledge and skills

(1) Let students solve multiplication and addition problems through situations.

(2) Analyze the difference between multiplication application problems and addition application problems.

Process and method

Through group cooperation activities, expand the opportunities for students to participate in discussion and expression, and cultivate their ability to analyze and compare different problems.

Emotional attitudes and values

In the process of learning, let students feel the close connection between mathematics and life.

Teaching emphases and difficulties:

Key point: let students learn to solve multiplication and addition problems.

Difficulty: Analyze and distinguish the difference between multiplication application problems and addition application problems.

Teaching methods and learning methods

Teaching method: try to guide the method.

Research methods: group cooperation research.

Teaching preparation:

Some multimedia courseware and compact discs.

Teaching process:

First, check the import.

(1) oral calculation.

2×3= 2+5= 4×2= 5× 1=

5+3= 4×3= 5+5= 1+4=

(2) Column calculation.

(1) What is the sum of three and four?

What is the sum of five twos?

You have learned the multiplication formula of 1-6, and learned to calculate the corresponding formulas and narrative questions. Today, let's study the difference between addition and multiplication, and see who can apply the knowledge learned before to solve these problems.

(3) The teacher's blackboard title, the difference between multiplication and addition.

Second, explore new knowledge.

(1) Example 7

(1) There are 4 rows of tables, with 5 tables in each row. How many tables are there in each row?

(2) there are two rows of tables, a row of five, another row of four, a * * * how many?