"Area and Area Units" PPT

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"Area and Area Units" PPT

Part One: Analysis of Examples

Discuss with your peers which shape has the largest area and which shape has the smallest area.

The rectangle has the largest area and the circle has the smallest area.

Example 1 Compare.

(1) Which of the two leaves has a larger surface?

The leaf on the left has a larger surface.

Which one has the smaller area, a square towel or a handkerchief?

The handkerchief area is small.

(2) Which of the following two figures has a larger area and which one has a smaller area?

Trace a picture on transparent paper...

Cut out the pictures and compare them again...

Area and area units PPT, part 2 content: practice:

Which of the two shapes below has a larger area and which one has a smaller area?

Answer: The rectangle on the left consists of 20 small circles, the rectangle on the right consists of 21 small circles, and the rectangle on the right has one more small circle than the left. So the rectangle on the right has a larger area and the rectangle on the left has a smaller area.

Compare which figure has the larger area.

Figure A occupies four whole squares and two half squares, and figure B occupies three whole squares and two half squares, so the area of ​​figure A is larger.

Comparison of size.

Below are four provinces drawn from a map of China.

Which province has the largest area and which province has the smallest area?

Answer: Qinghai Province has the largest area and Jiangsu Province has the smallest area.

Area and area units PPT, part three: fill in the blanks

2 square meters = ( ) square decimeters

3 square decimeters = ( ) square centimeters

300 square decimeters = ( ) square meters

500 square centimeters = ( ) square decimeters

Fill in the appropriate units in ( ).

(1) The area of ​​an envelope is approximately 200 ( ).

(2) The area of ​​a square table is approximately 64( ).

(3) The area of ​​a playground is approximately 3600 ( ).

(4) The area of ​​a playing card is approximately 40 ( ).

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For more information about the "Area and Area Units of Rectangles and Squares" PPT courseware, please click on the Rectangle and Square ppt Area and Area Units ppt tag.

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"Area and Area Units" Area of ​​Rectangles and Squares PPT Courseware Learning Objectives 1. Understand the area units square centimeters, square decimeters, square meters, hectares, and square kilometers. 2. Learn to use area units to measure specified areas, and be able to flexibly choose different area units..

"Area and Area Units" Area PPT Courseware 2:

"Area and Area Units" Area PPT Courseware 2 Tell me which objects around you have a surface close to 1 square centimeter, 1 square decimeter, and 1 square meter respectively? Today I learned about area and area units, and I know that the ( ) or ( ) size of an object is their...

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Update Time: 2024-11-23

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

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