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I'm on the way of teaching Englsih.

 
 
 

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关于我

1999年9月至2001年8月任教于凤阳县板桥中学,2000年10月当选为板桥中学团委书记。 2001年8辞职,同年八月受聘于私立无锡光华学校。2007年7月,受聘于安徽凤阳兴华学校,任政教主任,兼任校团委书记、中学部长。2008年先后被评为凤阳县首届“教坛新星”、“教学能手”、“骨干教师”。2011年9月,任教于安吉振民高级中学。2012年,兼任高一英语备课组长。

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Angle measurements (7)  

2008-02-25 09:27:01|  分类: Bilingual Teachi |  标签: |举报 |字号 订阅

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Ⅰ.Teaching Contents:

Getting to know the protractor and study the way of angle measurements.

Ⅱ.Teaching Aims:

1. Enable the students to know the protractor.

2. Enable the students to use the protractor to measure the angles in practice.

3. Enable the students to speak these words in class: protractor, vertex, arm, and scale.

Ⅲ.Teaching Important Points:

Enable the students to master the way of measuring the angles.

Ⅳ.Teaching Difficult Points:

Enable the students to use the outer scale and inner scale correctly.

V. Teaching procedures:

Step1: Talking 

1. Show an angle of 120o

Ask: Do you know the size of the angle?

Can you use set square to measure it?

2. Discussion: How can you do it?

Why are they different?

3.揭示课题: 为了准确量出角的大小,要有统一的计量单位和度量工具,今天我们就一起来学习角的度量.

板书:角的度量

Step 2: Study the protractor

1. Show the students a protractor .

2. Ask: What is this?

Introduce: This is a protractor. The protractor is used to measure the size of an angle.

3. Ask: What do you know about the protractor?

Discuss in class.

Introduce: The protractor starts from 0. It can measure from the left, and also

from the right.

4. Getting to know the scale.

T: Look carefully. How do you read the protractor from the left?

The teacher points to scale and then the students answer.

Step3: Study the way to use the protractor to measure the angles.

1. Ask: Can you use the protractor to measure the angles on page 19?

2. Ask the students to try to do it.

3. Discussion: How can you do it?

4. Summary:

A. Place the center of the protractor on the vertex. 00 is on the arm AB.

Because 00 is on the outer scale, use the outer scale.

B. Look at another arm from 00.

即:两重一看

5. Practice: Do exercise 1 on page 19: Measure each angle .

Step 4: Summing up

What did you learn in this lesson?

 Step 5: Homework

Do exercise 2 on page 19.

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