"Measurement of Angles" Angles PPT Courseware 2

Description

"Measurement of Angles" Angles PPT Courseware 2

teaching objectives

In this lesson, we mainly learn about the measurement of angles. Students must first understand the protractor and know how to use it to measure the size of an angle. Through a series of measurement activities, they will know that the size of an angle has nothing to do with the length of the sides of the angle, and can solve practical problems.

Steps to measure angles with a protractor

1. Place the protractor on top of the angle; make the center of the protractor coincide with the vertex of the angle;

2. The zero-degree scale line coincides with one side of the angle;

3. The scale on the protractor opposite the other side of the angle is the measure of the angle.

Observe and think

Is the size of an angle related to the length drawn on both sides of the angle?

The size of the angle has nothing to do with the length of the drawn sides of the angle.

Have you learned it?

What did the students learn today and how well did they master it? Ask the students to go back and write a study diary and write about what you have learned in our class. What are your experiences?

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File Info

Update Time: 2024-11-21

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

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