"How many numbers are added to 8 and 7" PPT courseware for carry addition within 20

Description

"How many numbers are added to 8 and 7" PPT courseware for carry addition within 20

Key point: Let students learn the calculation method of adding 8 and 7 in the process of independent exploration and cooperation and communication.

Difficulty: Understand the different "ten methods"

teaching objectives:

1. In actual situations, experience the process of proposing and solving problems, and be able to correctly calculate the addition of 8 and 7.

2. Develop the flexibility of thinking through observation, develop the ability to explore independently through operation, discussion, and communication, and form diversified algorithms.

3. Have a preliminary sense of cooperation and love to learn mathematics.

Have you learned it?

8+6= 8+5=

8+3= 8+7=

7+6= 7+5=

7+3= 7+7=

Compare to see who is the smartest and can make up questions about 8, 7 and how many more.

Do it

1. 8 + 2 + 2 = 8 + 2 + 5 =

8 + 4 = 8 + 7 =

2. 8 + 2 = 8 + 3 = 8 + 4 =

8 + 5 = 8 + 6 = 8 + 7 =

8 + 8 = 8 + 9 = 8 + 10 =

Teaching postscript:

The teaching of adding numbers to 1, 8, and 7 is directly introduced from the practical problems of the trumpet diagram brought by the little angel. Students can come up with diverse ideas through independent learning through thinking, posing, discussing, and speaking.

2. Arrange students to discuss algorithms in groups, exchange and introduce algorithms, and use these forms of cooperative exploration to consolidate the calculation methods of adding 8 and 7.

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For more information about the PPT courseware "How Many Additions to 87 with Carry Within 20" PPT courseware, please click on the PPT tag of "How Many Additions to 87 with Carry within 20" PPT courseware.

"How many numbers are added to 8 and 7" Carry addition within 20 PPT courseware 2:

"How Many Additions to 8 and 7" PPT Courseware for Carry Addition within 20 2 Think about it and do it 1. Circle 10 first, and then calculate. 8+4=12 8+8=16 7+4=11 7+8=□ 8+6=□ 8+5=□ 7+5=□ 8+9=□ 7+7=□ 9+8=□ 8+7=□ 9+7=□ 8+9=□ 7+8=□ 7+9..

File Info

Update Time: 2024-11-22

This template belongs to Mathematics courseware Jiangsu Education Edition First Grade Mathematics Volume 1 industry PPT template

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