"My family bought a new house" PPT courseware 6

Description

"My family bought a new house" PPT courseware 6

Class objectives

1. Experience the process of exploring and deriving the formulas for calculating the area of ​​rectangles and squares.

2. Master the formulas for calculating the area of ​​rectangles and squares. (emphasis)

3. Use the area calculation formulas of rectangles and squares to solve problems. (difficulty)

1. What is area? What are the commonly used units of area?

(1) The size of the surface of an object or the surrounding plane figure is called their area.

(2) Commonly used area units are: square meters, square decimeters, square centimeters

Task one

Who has the bigger area?

Task 2

1. Ask each student to take out the small squares they prepared and put them into a rectangle you like.

2. Count the rectangle you put together. How many centimeters is the length and how many centimeters is the width? What is its area in square centimeters? Fill out the form.

3. Pair communication.

Task three

If the length of the rectangle is shortened by 1 decimeter to 5 decimeters, what is its area?

What shape is this shape when the length and width are both 5 decimeters?

What became of length and width? (side length)

What is the relationship between the area of ​​a square and the length of its sides?

5 × 5=25 (square decimeters)

Square: side length × side length = area

Summarize

In this lesson we learned how to calculate the area of ​​rectangles and squares:

Area of ​​rectangle = length × width

Area of ​​a square = side length × side length

Keywords: My family bought a new house teaching courseware, Qingdao edition third grade mathematics volume PPT courseware download, third grade mathematics slide courseware download, My family bought a new house PPT courseware download, .PPT format;

For more information about the PPT courseware "My Family Bought a New House", please click the "My Family Bought a New House" ppt tag.

"My family bought a new house" PPT courseware 7:

"My family bought a new house" PPT courseware 7 1. Situation introduction The new house has 6 rooms of different sizes. Every room is rectangular. Which area is larger, the dining room or the kitchen? What questions can you ask based on this information? From the picture, what numbers do you know...

"My family bought a new house" PPT courseware 5:

"My Family Bought a New House" PPT Courseware 5 Learning Objectives: 1. Be able to distinguish the perimeter and area of ​​rectangles and squares. 2. Be proficient in mastering and using the formulas for the perimeter and area of ​​rectangles and squares to solve practical problems. 3. Cultivate a love for life. Focus: Plan...

"My family bought a new house" PPT courseware 4:

"My Family Bought a New House" PPT Courseware 4 Preview Outline 1. What is the area? What are the commonly used units of area? 2. Find an object in life with an area of ​​approximately 1 square centimeter, 1 square decimeter, or 1 square meter. 3. Investigate the faces of some common objects from parents..

File Info

Update Time: 2024-08-15

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

Preview