"Knowledge in Home" PPT Courseware 3

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"Knowledge in Home" PPT Courseware 3

●The width of the baseboard is 0.1 meters.

●The height of the sofa is 0.4 meters.

●The height of the TV cabinet is 0.55 meters.

●Children's bed is 2 meters long, 1.2 meters wide and 0.5 meters high.

●The height of the writing desk is 0.7 meters.

What numbers are 0.1, 0.4, 0.55, 1.2, 0.5 and 0.7?

What mathematical information do you know from the picture?

Think about it, how do you read decimals?

The part before the decimal point is read the same as the integer.

For the part after the decimal point, just read numbers.

Anecdote 1:

A newspaper in Brazil is 3.2 centimeters long and 2.5 centimeters wide, about the size of two stamps. It is the smallest newspaper in the world.

Anecdote 2:

Lijiang's "Nasi Golden Key" is a giant drum-shaped copper key, about 2 meters long and 0.88 meters wide, making it the largest key in the world.

Anecdote 3:

Currently, the largest drum in the world is in the United States. The drum head is 11.62 meters long and weighs 272.2 kilograms. It was built in Boston in 1872 to celebrate world peace.

1. Fill it out

(1) 5.8 is read as ( ) 0.3 is read as ( )

(2) Writing at 0.6 ( ) Writing at 26.8 ( )

(3) 6.5 yuan means ( ) yuan ( ) jiao

(4) 12.5 meters means ( ) meters ( ) decimeters

2. Do it

On the right side of each graph, write the fraction first and then the decimal.

3. Think about it

2.19 meters 1.2 meters 3.82 meters

What does the 2 in the middle of these three decimals represent?

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"Learning at Home" PPT courseware 2:

"Knowledge in Home" PPT Courseware 2 1. Situation Introduction Which is longer between 0.5 meters and 0.4 meters? What mathematical information do you know from the picture? What questions can you ask based on this information? 2. Collaborative exploration Which is longer between 0.5 meters and 0.4 meters? You can..

"Learning at Home" PPT courseware:

"Learning at Home" PPT courseware The teaching objectives of this lesson are 1. Understand the meaning of decimals. 2. Able to read and write decimals. 3. Through the preliminary understanding of decimals, students can develop their ability to solve practical problems and their love for mathematics. The width of the baseboards in Teacher Wang’s home...

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Update Time: 2024-10-15

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

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