"Understanding of Decimeters" Measuring Length PPT Courseware

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"Understanding of Decimeters" Measuring Length PPT Courseware

1. Estimate: How long is your desk?

2. Think about it: What length unit is more appropriate to use to express the width of a desk?

A unit of length larger than the centimeter—the decimeter

Do it:

1. Stretch out your thumb and index finger and mark 1 decimeter on the ruler.

2. Estimate the length of 1 decimeter at the edge of the desk and see who has the most accurate estimate. Measure each other at the same table.

3. Tell us which objects are about 1 decimeter long.

Do the math

50 cm = ( ) decimeter

4 decimeter = ( ) centimeter

30cm＝( )dm

2dm=( )cm

59 cm = ( ) decimeter ( ) centimeter

4 decimeters 5 centimeters = ( ) centimeters

32cm＝( )dm( )cm

1dm6cm=( )cm

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For more information about the "Understanding of Measuring Length in Decimeters" PPT courseware, please click the "Understanding of Measuring Length in Decimeters" ppt tag.

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Update Time: 2024-11-19

This template belongs to Mathematics courseware Western Normal University Edition Second Grade Mathematics Volume 1 industry PPT template

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