"Understanding of Hectares and Square Kilometers" Calculation of the Area of ​​Polygons PPT Courseware 3

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"Understanding of Hectares and Square Kilometers" Calculation of the Area of ​​Polygons PPT Courseware 3

1. What are the commonly used units of area?

Square meter Square decimeter Square centimeter

1 square decimeter =100 square centimeters

1 square meter =100 square decimeters

The rate of progress between each two adjacent area units is ( )

3 square decimeters = ( ) square centimeters

6 square meters = ( ) square decimeters

500 square centimeters = ( ) square decimeters

200 square decimeters = ( ) square meters

A square with a side length of 1 km has an area of ​​1 square km.

1 square kilometer = ( ) hectare

judge

(1) 6 square meters = 60 square decimeters ( )

(2) A square with a side length of 4 meters has the same perimeter and area. ( )

(3) Use 8 squares to form a rectangle. There is only one way to spell it. ( )

(4) A figure made of 8 squares of 1 square decimeter has an area of ​​8 square decimeters. ( )

There are two rectangles of the same size, both 36 cm long and 18 cm wide.

(1) If assembled into a square, what is its perimeter?

(2) If assembled into a rectangle, what is its perimeter?

(3) Are the areas of the two figures equal? how many?

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"Understanding of Hectares and Square Kilometers" Calculation of the Area of ​​Polygons PPT Courseware 2:

"Understanding of Hectares and Square Kilometers" Calculation of Polygonal Area PPT Courseware 2 Teaching Objectives 1. Knowledge Objectives: Let everyone know the commonly used units of land area, hectares and square kilometers, learn to measure land area, and know how big 1 hectare is. 2. Ability goal: enable everyone to master...

"Understanding of Hectares and Square Kilometers" Calculation of Polygon Area PPT Courseware:

"Understanding of Hectares and Square Kilometers" Calculation of Polygon Area PPT Courseware The area of ​​a stamp is about 8 ( ) The area of ​​the classroom desk is about 24 ( ) The area of ​​the classroom floor is about 50 ( ) How big is 1 hectare? A side length of 100 meters The square land area is 1 hectare. 100100..

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Update Time: 2024-10-12

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

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