"Calculation of the Area of ​​Parallelograms" Area of ​​Polygons PPT Courseware 3

Description

"Calculation of the Area of ​​Parallelograms" Area of ​​Polygons PPT Courseware 3

1. Comparing the created rectangle with the original parallelogram, has the area changed?

2. What is the relationship between the length of the spelled rectangle and the base of the original parallelogram, and what is the relationship between the width of the spelled rectangle and the height of the original parallelogram?

3. Can you deduce the formula for calculating the area of ​​a parallelogram based on the formula for calculating the area of ​​a rectangle?

Consolidation exercises

1. Fill in the blanks:

1. The base of a parallelogram is 9 cm, the height is 3 cm, and its area is ( ) square centimeters.

2. The area of ​​a parallelogram is 30 square meters, the height is 6 meters, and the base is () meters.

2. Calculate the area of ​​the parallelogram below.

5×5.5=27.5(square meters)

30×15=450 (square centimeters)

18×25=450 (square centimeters)

Thinking questions

How many ways do you have to find the area of ​​the figure below?

9×4=36(square centimeters)

9×6=54(square centimeters)

36+54=90(square centimeters)

9×(6+4)=9×10=90(square centimeters)

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For more information about the PPT courseware "Area of ​​Polygons and Calculation of the Area of ​​Parallelograms", please click the Area of ​​Polygons ppt Calculation of the Area of ​​Parallelograms ppt tag.

"Calculation of the Area of ​​Parallelograms" Area of ​​Polygons Flash Animation Courseware:

"Calculation of the Area of ​​Parallelograms" Flash Animation Courseware for the Area of ​​Polygons This courseware is a teaching material for Unit 5 of the fifth grade mathematics volume of the Hebei Education Edition. Calculation of the Area of ​​a Polygon. Flash Animation Courseware for Calculating the Area of ​​a Parallelogram. The content is vivid and vivid. Please download it! ..

"Calculation of the Area of ​​Parallelograms" Area of ​​Polygons PPT Courseware 4:

"Calculation of the Area of ​​a Parallelogram" Area of ​​a Polygon PPT Courseware 4 1. Oral Answer What is the formula for calculating the area of ​​a parallelogram? How is it derived? The formula for the area of ​​a parallelogram: S=ah 2. Calculate the area of ​​each parallelogram below orally. (1)..

"Calculation of the Area of ​​Parallelograms" Area of ​​Polygons PPT Courseware 2:

"Calculation of the Area of ​​Parallelograms" Area of ​​Polygons PPT Courseware 2 Group Discussion: ① Compared with the original parallelogram, has the area changed? ② The length and width of the spelled rectangle are the same as the base of the original parallelogram. What does it have to do with Gao? ..

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Update Time: 2024-11-25

This template belongs to Mathematics courseware Jiangsu Education Edition Fifth Grade Mathematics Volume 1 industry PPT template

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