"How Much" Preparation Lesson PPT Download

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"How Much" Preparation Lesson PPT Download

Part One: Introduction to the topic

Listen to the story of the three pigs building a house and think about it, why did the three pig brothers help the little rabbit build a house? (Page 18 of the lesson plan)

How many PPTs are there, part two: new knowledge in teaching

In the picture, how many bricks does each little rabbit move? Try to discuss with your deskmate how to compare the number of rabbits and the number of bricks?

Kids, what are the piglets doing? How many piglets are there? How many pieces of wood are there?

How many PPTs are there, the third part: knowledge sorting

Knowledge point 1: The same amount.

The same number can be understood as one-to-one correspondence of things, or as the same number of things.

[Summary] When two things are matched one by one and there is no remainder, it is said that the quantity of the two things is the same; the number of the same number of things is represented by the same number, and the number of things with the same number is the same. .

Knowledge point 2: More and less.

More and less are interdependent. When comparing two things, if the quantity of one thing is large, the quantity of the other thing will be small; conversely, if the quantity of one thing is small, the quantity of the other thing will be large. To judge whether the quantity of something is large or small, you can also use the one-to-one correspondence method to examine.

How many PPTs are there, Part 4: Classroom exercises

Exercise 1: Draw “√” for more and “×” for less.

Exercise 2: Compare and fill in the blanks.

How many PPTs are there, Part 5: Homework

1. Count and draw with “○” according to the pattern.

2. The first row and the second row have more “√”s, fewer “×”s, and the same number of “○”s.

3. Circle the correct statement according to the picture.

4. Compare and fill in the blanks.

How many PPTs are there, part six: knowledge expansion

1. Draw a picture according to the requirements.

(1) There is one more △ than ○ drawn. (2) The drawn □ is one less than the ☆.

2. Compare, put “√” after the correct statement, and put “×” after the incorrect statement.

How many PPTs are there, part seven: divergent thinking

[Example] Dongdong has 4 pieces of candy more than Mingming. If Dongdong gives Mingming 2 pieces of candy, who has more candy? How many more?

Analysis: Dongdong originally had 4 pieces of candy more than Mingming, but he gave 2 pieces to Mingming. At this time, Dongdong had 2 pieces less, which was 2 pieces more than Mingming had before, and Mingming now also had 2 pieces more than Lai. So, they have the same amount of candies. Students can draw pictures and compare them using a one-to-one correspondence method.

Answer: The same amount.

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Update Time: 2024-10-19

This template belongs to Mathematics courseware People's Education Press First Grade Mathematics Volume 1 industry PPT template

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