Why is it so hot in summer?

Why is it so hot in summer? The curriculum plan for the middle class is as follows:

1, teaching objectives

Understand the scientific causes of high temperature in summer; Know the relationship between high solar illumination and long exposure time; Learn to observe weather changes and cultivate the ability to ask and analyze problems.

2. Teaching focus

In summer, the sun is high, the light is strong and the irradiation time is long; The earth's surface gets more heat and the temperature rises; The high water vapor content in the air leads to the greenhouse effect and prevents the release of heat.

3. Teaching steps

Observe and compare the weather changes in different seasons, so that students can feel and think about why summer is particularly hot. Explain the scientific reasons for high solar illumination and long exposure time in summer. Demonstrate the relationship between the tilt of the earth and the changes of the four seasons with charts; Explain why the surface temperature rises obviously after the surface gets more heat and more water vapor in the air causes the greenhouse effect.

List some measures to alleviate the high temperature in summer in life, so that students can understand the application of classroom knowledge; Encourage students to continue to observe the weather changes in their lives, ask their own questions, infer the reasons and cultivate their scientific thinking ability.

4. Teaching resources

Globe, solar system model, greenhouse effect map, etc.

5, the situation that should be avoided in the teaching process

The teaching plan is too difficult or uses too technical terms. Not conducive to students' understanding. Explain and demonstrate with easy-to-understand examples and charts.