小学数学备课教案模板(【小升初】9的乘法口诀的推导，快收藏！)(3)

Birth 2: 15×3 is to divide 15 into 10 and 5, 10×3=30, 5×3=15, 3 10s plus 3 5s, 30+15=45 (yuan).

四、class summary

Today, we learned how to multiply one digit by two digits through the "how much money do you need" to buy something. What have you learned after learning this?

First multiply a single digit with a two-digit number, and then multiply a single digit with a two-digit number with dozens of digits, and finally combine them.

五、Consolidation and practice

1.看屏 (show the scenario diagram of Lian Yi Lian Question 2)

Let students solve the two problems (1) and (2) independently, and communicate in the whole class.

When communicating with the whole class, for question (2), encourage students to say different ways of thinking about the problem.

Yes: ①Because 15×6=90 (block), 100-90=10 (block), so enough points.

②Because 15×6=90 (block), 100>90, so enough points.

2.看屏 (show the situational picture of Lian Yi Lian Question 3)

Teacher: Can anyone tell me what you see in the picture?

Students answer according to the diagram and solve the problems independently, then communicate in groups, and then communicate with the whole class.

3.练一练 Question 4

The teacher first demonstrates to let students understand the form, and the students fill out the form independently, and then conduct feedback and exchanges for the whole class.

Guide students to observe the results and say "What did they find?"

4.练一练 Question 1

First let the students calculate independently, and then draw a few questions to let the students talk about the oral calculation method.

六、detection

How did you learn in this lesson? Come on, do a 16×4 and write your thought process.

Check each other when you are done, to see if everyone is correct.

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