"Comparison of Decimals" PPT courseware on the meaning and properties of decimals

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"Comparison of Decimals" PPT courseware on the meaning and properties of decimals

1. Create a situation

The teacher brought 500 yuan to buy a bicycle. The price of a bicycle is 368 yuan. Does the teacher bring enough money?

Questions: 1. Can you solve this problem?

2. Talk about the comparison method of integer size.

Default: When the digits of the integers are different, the number with more digits is larger; when the digits are the same, the comparison starts from the highest digit and compares one by one in digit order.

2. Try to explore

Questions: 1. Does the teacher have enough money left to buy a pen? Tell us what you think.

2. Try to talk about how to compare decimals.

3. Explore the size comparison of decimals

(1) Present examples

(2) Explore methods for comparing decimals with different integers

(3) Explore the comparison method of decimals with the same integers

(4) Organize comparison results and sort out comparison methods

4. Application expansion

1. Compare the two numbers in each group below.

3 yuan ( )2.6 yuan 6.35m ( )6.53m

4.723( )4.79 0.458( )0.54

2. Which store is cheaper to buy each type of supplies?

3. Rank them in order of weight from largest to smallest.

5. Assign homework

Homework: Exercise 10 on page 42, questions 6 and 7.

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For more information about the PPT courseware "The Meaning and Properties of Decimals and Comparison of the Size of Decimals", please click the "The Meaning and Properties of Decimals ppt Comparison of the Size of Decimals" ppt tag.

"Comparison and Properties of Decimals" PPT:

"Size Comparison and Properties of Decimals" PPT Part One Content: New Lesson Introduction Rewrite 5 decimeters, 50 centimeters and 500 millimeters into decimals in meters. 5 decimeters = 0.5 meters 50 centimeters = 0.50 meters 500 millimeters = 0.500 meters Find 5 decimeters and 50 centimeters on the meter stick..

"Comparison of Decimals" The meaning and properties of decimals PPT courseware 3:

"Comparison of Decimals" The Meaning and Properties of Decimals PPT Courseware 3 Teaching Objectives 1. Knowledge Objective: Students are required to independently explore the method of comparing decimals in real situations, and be able to correctly compare the magnitude of decimals...

"Comparison of Decimals" The meaning and properties of decimals PPT courseware 2:

"Comparison of Decimals" PPT Courseware on the Meaning and Properties of Decimals 2 Fill in the following: (1) 3.72 is composed of ( ) one, ( ) tenths and ( ) one hundredths. (2) The tenth place of 41.295 is ( ), which means ( ), and the percentile is ( )..

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Update Time: 2024-10-01

This template belongs to Mathematics courseware People's Education Press fourth grade mathematics volume 2 industry PPT template

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