"Properties of Decimals" The meaning and properties of decimals PPT courseware 3

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"Properties of Decimals" The meaning and properties of decimals PPT courseware 3

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"Properties of Decimals" The meaning and properties of decimals PPT courseware 3

teaching objectives

1. Knowledge objectives: Through group cooperative learning, initially understand the properties of decimals; be able to use the properties of decimals to correctly simplify and rewrite decimals.

2. Ability goal: Cultivate everyone’s ability to flexibly use knowledge to make judgments.

3. Emotional goals: To stimulate everyone’s active awareness of cooperation and exploration spirit, and to cultivate students’ love for learning mathematics.

Can you guess how the size of the decimal changes if "0" is added or removed from the end of the decimal?

0.3 is three 0.1s, and 0.30 can also be regarded as three 0.1s;

Therefore, 0.3=0.30.

Can you point out where 100 millimeters, 10 centimeters, and 1 decimeter are on the meter stick?

Do you know how many fractions of a meter 100 millimeters, 10 centimeters, and 1 decimeter are respectively? How much is it written as a decimal?

Can you compare the sizes of 0.100m, 0.10m, 0.1m?

Observe and think:

(1) Observe what changes are there at the end of the following three decimals from left to right? What is the size of the decimals?

(2) Observe what changes are there at the end of the following three decimals from right to left? What is the size of the decimals?

(3) What did you find as a result of the comparison?

Adding "0" or removing "0" from the end of the decimal will keep the size of the decimal unchanged. This is the nature of decimals.

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

"Properties of Decimals" The meaning and properties of decimals PPT courseware 4:

"Properties of Decimals" The Meaning and Properties of Decimals PPT Courseware 4 Teaching Objectives In this lesson, we mainly study the properties of decimals. Students must initially understand the properties of decimals through group cooperative learning; be able to use the properties of decimals to simplify correctly and rewrite decimals. 0...

"Properties of Decimals" Decimal PPT Courseware 3:

"Properties of Decimals" Decimal PPT Courseware 3 Teaching Objectives In this lesson we mainly study the properties of decimals. Students will understand and master the properties of decimals based on actual examples and be able to solve related practical problems. 1. Simplify 0.70 and 105.0900 0.70= ( ) 105..

"Properties of Decimals" Decimal PPT Courseware 2:

"Properties of Decimals" Decimal PPT Courseware 2 Teaching Objectives In this lesson we mainly study the properties of decimals. Students will understand and master the properties of decimals based on actual examples and be able to solve related practical problems. Properties of decimals: Add 0 to the end of the decimal part or remove...

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Update Time: 2024-11-22

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