| Category | Format | Size |
|---|---|---|
| Western Normal University Edition Third Grade Mathematics Volume 2 | pptx | 6 MB |
"Area Calculation" The area of rectangles and squares PPT courseware 3
Description
"Calculation of Area" Area of Rectangles and Squares PPT Courseware 3
learning target:
1. Experience the process of overturning the formula for calculating the area of a rectangle, understand and master this formula, and then use knowledge transfer to learn the formula for the area of a square independently.
2. Develop observation ability, operation ability and spatial imagination ability during the learning process.
3. Cultivate a sense of cooperation.
What is the area of the rectangle below in square centimeters? how do you think? Communicate in a group?
Group discussion: What is the relationship between the area of a rectangle and its length and width? How to find the area of a rectangle?
Area of rectangle = length × width
If S represents the area of the rectangle, and a and b represent the length and width of the rectangle respectively, the formula for calculating the area of the rectangle can be written as:
S＝a×b
Area of a square = side length × side length
If S represents the area of the square and a represents the side length of the square, the formula for calculating the area of the square can be written as:
S＝a×a
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For more information about the "Calculation of Areas of Rectangles and Squares" PPT courseware, please click on the Calculation of Areas of Rectangles and Squares PPT tab.
"Calculation of the Area of Rectangles and Squares" area PPT courseware download:
"Calculation of the Area of Rectangles and Squares" Area PPT Courseware Download Part One: Introduction to the Topic 1. Review old knowledge. Let’s talk about it: (1) The area units we commonly use are ( ), ( ), ( ). (2) The area of a square with side length 1 cm is...
"Calculation of the Area of Rectangles and Squares" Area PPT Courseware (Lesson 2):
"Calculation of the Area of Rectangles and Squares" Area PPT Courseware (Lesson 2) Part One: Interesting Introduction The length of the basketball court is 28 meters and the width is 15 meters. What is its area in square meters? The area of the rectangle = length and width 2815 = 420 (square decimeters) Answer: It...
"Calculation of the Area of Rectangles and Squares" Area PPT Courseware (Lesson 1):
"Calculation of the Area of Rectangles and Squares" Area PPT Courseware (Lesson 1) Part One: Exciting Introduction Fill in the appropriate unit name on the horizontal line. Xiaoliang's waist is 5_______. The length of the classroom is 8_______. The area of a CD is approximately 1____..
File Info
Update Time: 2024-07-06
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