"Skillful Little Craftsman" PPT Courseware 7

Description

"Skillful Little Craftsman" PPT Courseware 7

1. Situation introduction

What shape is a clothes hanger and what are its characteristics?

What questions can you ask?

2. Cooperation and exploration

What shape is the hanger?

Think about it, where are parallelograms in life?

What are the characteristics of a parallelogram?

Review: When exploring the characteristics of rectangles, what two aspects do we study from?

Migration: When exploring the characteristics of parallelograms, what two aspects should we study?

An exploration of the characteristics of parallelograms

Explore event requirements

1. Use the learning tools in hand to study from the sides and corners.

2. As a group, organize the research results in a record sheet.

give it a try

1. How many heights does the parallelogram have? What's the relationship between them?

There are countless lines, all with the same height on the same base.

2. What are the heights of base � and base b of a parallelogram?

The height above base � is h2; the height above base b is h1.

3. Independent practice

1. How many parallelograms are there in the picture below?

2. Draw the height of the base of the parallelogram below.

3. Fill it out.

In the following figures, ( ) is a triangle and ( ) is a parallelogram.

4. The picture below is a parallelogram formed by three pieces of the tangram. Can you move one of the pieces and make it into a rectangle?

5. Assemble graphics.

Which quadrilaterals can be made from the two sets of paper strips below?

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Update Time: 2024-10-03

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

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