"Animal World" PPT Courseware 7

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"Animal World" PPT Courseware 7

1. Situation introduction

The smallest bird in the world is the hummingbird of South America, which is only 0.05 meters long and its eggs weigh 0.46 grams.

The albatross' eggs weigh 0.365 kilograms and its wings are up to 3.6 meters long, making it the bird with the longest wings in the world.

The body length of a hummingbird is 0.05 meters, and the egg weight is 0.46 grams.

An albatross egg weighs 0.365 kilograms and its wings are 3.6 meters long.

What parts does a decimal consist of?

What mathematical information do you know from the picture?

2. Cooperation and exploration

What parts does a decimal consist of?

Integer part Decimal point Decimal part

Can you complete the decimal digit order table according to the digit order of integers?

In 0.365, what are the numbers in each digit? What do they mean?

The tenth place is 3, which means three 1/10s, which is three 0.1s.

The percentile is 6, which means 6 1/100, which is 6 0.01.

The thousandths place is 5, which means 5 1/1000, which is 5 0.001.

3. Independent practice

1. Write, read, and tell the meaning of each decimal.

12:324

2:301

One hundred and twenty point two thirty three

2. Read out the following decimals, and then talk about the meaning of “4” in each number.

42.05 is pronounced forty-two point five

8.43 pronounced as eight point four three

0.24 is pronounced as zero point two four

14.72 is pronounced fourteen seventy-two

1.284 pronounced as one point two eighty four

3. A sharp eye distinguishes right from wrong.

(1) The height of the desk is 0.76 meters. ( )

(2) Wang Lin’s height is 14.6 meters. ( )

(3) Xiao Ying, a student in Class 1, Grade 4, weighs about 3.15 kilograms. ( )

Keywords: Animal World Teaching Courseware, Qingdao Edition Fourth Grade Mathematics Volume 2 PPT Courseware Download, Fourth Grade Mathematics Slide Courseware Download, Animal World PPT Courseware Download, .PPT format;

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"Animal World" PPT courseware 6 1. Situation introduction The body length of a hummingbird is 0.05 meters, and the egg weight is 0.46 grams. What does 0.05 mean? An albatross egg weighs 0.365 kilograms and its wings are 3.6 meters long. What does 0.365 mean? What mathematical information do you know from the picture? 2. Cooperation and exploration...

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Update Time: 2024-10-03

This template belongs to Mathematics courseware Qingdao Edition Fourth Grade Mathematics Volume 2 industry PPT template

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