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

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

judge

1. Only rectangles and squares have perimeters ( )

2. The perimeter of a triangle refers to the total length of the three sides of the triangle ( )

3. In the picture on the left, the perimeter of the red figure is shorter than that of the yellow figure ( )

4. The perimeters of the two figures below are the same ( )

Multiple choice questions:

(1) A rectangular playground is 50 meters long and 35 meters wide. To find the perimeter of the playground, the correct formula is ( )

A. 50＋35×2 B. (50＋35)×2

(2) The sum of the length and width of the classroom is 12 meters, and its perimeter is ( ) meters

A. (12+12)×2=48 (meters)

B. 12×4=48 (meters)

C. 12×2=24 (meters)

Consolidation exercises

1. The perimeter of a square is 28 decimeters. What is the length of its side in decimeters?

28÷4=7 (decimeter)

Answer: Its side length is 7 decimeters.

2. The width of a rectangle is 3 meters, and the length is 4 times the width. How many meters is the length of this rectangle? How many meters is the circumference?

3×4=12 (meters) (3+12)×2=30 (meters)

Answer: The length of this rectangle is 12 meters and its perimeter is 30 meters.

Please each of you take out two prepared rectangular cardboards 10cm long and 5cm wide and put them together to see what shapes you can make.

For two people at the same table to cooperate, the requirements are as follows:

1. Two people at the same table have a try.

2. Draw and do the math.

Summarize

Students, I believe everyone will gain something from studying this class. What is your gain?

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For more information about the PPT courseware "Calculation of Perimeter of Rectangles and Squares, Rectangles and Squares", please click the Calculation of Perimeter of Rectangles and Squares 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 2:

"Calculation of Perimeter of Rectangles and Squares" Perimeter PPT Courseware 2 Learning Objectives 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 perimeter and real life..

"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...

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Update Time: 2024-10-23

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

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