"Solving problems with addition and subtraction of fractions" Addition and subtraction of fractions PPT

Description

"Solving problems with addition and subtraction of fractions" Addition and subtraction of fractions PPT

Part One: Learning Objectives

1. Able to use drawing to find solutions to problems. (emphasis)

2. Be able to use the knowledge of addition and subtraction of fractions to solve simple practical problems. (difficulty)

Use fraction addition and subtraction to solve problems PPT, part 2: explore new knowledge

Knowledge points Use fraction addition and subtraction to solve practical problems

A cup of pure milk. After Lele drank half the cup, she felt a little cold, so she filled it with hot water. He drank another half glass and went out to play. How many cups of pure milk did Lele drink in total? How many glasses of water?

Reading and Comprehension

What information did you get?

The first time: a glass of pure milk, drank ____ cup.

The second time: I filled it with water and drank another ____ cup.

Question: How many cups of pure milk did you drink in total?

Review and Reflection

1. What is the key to solving this problem?

The key to solving this problem is to find out how many cups of pure milk you drank the second time.

2. What knowledge is used in the key steps?

In solving this key problem, knowledge of the meaning of fractions and basic properties of fractions is applied.

Knowledge refining

The key to solving this problem is to grasp the characteristic that the total amount of pure milk will not change, conduct analysis and reasoning, and clarify the amount of pure milk to drink and the amount of water to add each time, so as to solve the problem.

Use fraction addition and subtraction to solve problems PPT, Part 3: Consolidation exercises

1. (Selected from textbook P101 T8)

Use your findings to solve the following problem.

Ask students to share their findings.

2. If 6 apples of the same size are divided equally among 8 children, how can they be divided? What fraction of these apples does each child get? (Selected from textbook P101 T9)

Use fraction addition and subtraction to solve problems PPT, Part 4 content: Class summary

What knowledge have you learned in this class?

The key to solving this problem is to grasp the characteristic that the total amount of pure milk will not change, conduct analysis and reasoning, and clarify the amount of pure milk to drink and the amount of water to add each time, so as to solve the problem.

Use fraction addition and subtraction to solve problems PPT, Part 5: Homework

Assignment 1: Complete the exercises related to the textbook.

Assignment 2: Complete the corresponding exercises.

Keywords: free download of PPT courseware for mathematics in the second volume of the fifth grade of the People's Education Press, PPT download for solving problems using addition and subtraction of fractions, PPT download of addition and subtraction of fractions, .PPT format;

For more information about the PPT courseware "Add and Subtract Fractions and Use Fractions to Add and Subtract to Solve Problems", please click the Addition and Subtraction of Fractions PPT to Solve Problems by Adding and Subtracting Fractions PPT tag.

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Update Time: 2024-11-20

This template belongs to Mathematics courseware People's Education Press Fifth Grade Mathematics Volume 2 industry PPT template

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