"Calculation of Perimeter of Rectangle and Square" Perimeter PPT Courseware 2

Description

"Calculation of Perimeter of Rectangle and Square" Perimeter PPT Courseware 2

learning target

1. Through practice, you can further deepen your understanding of perimeter and become more proficient in calculating the perimeter of rectangles and squares.

2. Combined with specific situations, we can further perceive the close connection between perimeter and real life.

Explore new knowledge

1. Perimeter of rectangle

9×2+6×2＝30（cm）

This is how I calculated it...

9＋6＋9+6＝30（cm）

This is how I calculated it...

9+6=15 (cm) 15×2=30 (cm)

I ask parentheses to help...

(9+6)×2=30(cm)

Is the following statement correct? Why?

1. A rectangle is 10m long and 5m wide. Its perimeter is 10+5 ×2=20(m) ( )

2. A square with a side length of 3 decimeters and a perimeter of 3×4=12 (cm) ( )

3. A rectangle, the sum of its length and width is 10cm, its perimeter is 10×2=20(cm) ( )

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For more information about the PPT courseware "Calculation of the Perimeter of a Rectangle and a Square", please click on the Perimeter ppt Calculation of the Perimeter of a Rectangle and a Square ppt tag.

"Calculation of Perimeter of Rectangles and Squares" Perimeter PPT Courseware 3:

"Calculation of the Perimeter of Rectangles and Squares" Perimeter PPT Courseware 3 Learning Objectives 1. Further understand and master the formulas for calculating the perimeter of rectangles and squares, and be able to use the formulas to solve simple practical problems. 2. Combined with the reality of life, improve students’ hands-on operations..

"Calculation of Perimeter of Rectangles and Squares" Perimeter PPT courseware:

"Calculation of Perimeter of Rectangle and Square" Perimeter PPT Courseware (1) 75+55+75+55=260 (meter) Length + Width + Length + Width = Perimeter of Rectangle (2) 75+75+55+55 = 260 (meters) Length + Length + Width + Width = Perimeter of the rectangle (Length + Width) 2 = Perimeter of the rectangle. Find the rectangle...

"Calculation of Perimeter of Rectangles and Squares" Rectangles and Squares PPT Courseware 3:

"Calculation of the Perimeter of Rectangles and Squares" Rectangles and Squares PPT Courseware 3 Think about it: If you know the perimeter of a square, how do you find the side length? There is a square flower bed with a perimeter of 20 meters. What is the side length of the flower bed? 20 4 = 5 (meters) Answer: Flowers..

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Update Time: 2024-10-20

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

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