The following is a brief description of the course plan:

Teaching process:

First, review preparation

Oral calculation:

Teacher: Students, do you like going to amusement parks? Today, the teacher took everyone to the amusement park. This is the pass to the amusement park. As long as you correctly calculate the following formula, you can pass the test. Are you confident of getting it? Raise your hand and say it.

6×4=8×5=2×9=? 3×9=

3×8 =? 9×7=7×6=? 4×8=

Teacher: Our classmates calculated accurately and quickly, and also told us the formula to solve it. It's amazing! Congratulations on your passing! Let's walk into the amusement park together.

Second, learn new knowledge:

1. Show the situation map

Teacher: Look carefully. What mathematical information do you get from the picture?

Answer: (information in the price list of amusement items)

Let the whole life speak, let the whole life speak, and the rest of the students supplement.

Step 2 ask questions

Teacher: Can you put forward the problem of multiplication calculation based on this information (teacher's finger)?

Step 3 solve the problem

(1) Teacher: There are so many questions. Let's solve them one by one. Let's take a look at this problem first.

How much is it for 9 people to ride the merry-go-round for 2 yuan?

Do it quickly in your own book.

(2) Collective proofreading: Who will report? (blackboard formula)

2×9= 18? We can use the formula of 298 to calculate.

(3) 10 How much does it cost? Will you solve this problem? Just try it.

Students think independently and talk about your ideas in groups-feedback from the whole class

Teacher: Students who have finished, work in groups of four. Tell me how you worked it out.

Teacher: Who will report it? 2× 10=20, how to calculate?

Health: ①2×9= 18, nine twos are 18, 10 twos are 20.

② If there are two 10, it is 20.

③2× 1 decimal =2 decimal = 20 (2×1= 2,2×10 = 20? Teacher: What does "1" of 2× 1 mean? )

Student blackboard writing algorithm.

Teacher: It's amazing! Thought of so many algorithms. Which method and algorithm do you like?