Course plan 1:
1, activity target
Combine readers' and my own experiences to enrich and deepen the understanding of shadows, especially the relationship between the activities of characters and the changes of shadows. Understand the characteristics of the role on the basis of perceiving the content of the story.
2. Activity process
The teacher led out the theme of the activity in the form of guessing: "Everyone has a good friend, black body and black head, who is with you in front of the lamp and under the moon, but he is dumb." The teacher asked where you saw the shadow and guided the children to think differently.
Lesson plan 2:
1, activity target
Exercise children's ability to run around. Stimulate children's interest in sports. Cultivate children's ability to dodge flexibly and run with goals.
2. Activity process
Organize children to go outdoors to bask in the sun, do all kinds of imitation actions, and fully exercise. Children do various imitation actions according to the teacher's language prompts. If the sun shines on the shoulders, the shoulders will rise; When the sun shines on the legs, the legs jump; The sun shines on the waist, twist it and so on.
Shadow outline:
1, the definition of shadow
Shadow is due to the scientific principle that objects block light. Light travels in a straight line in the same uniform medium and cannot pass through opaque objects to form dark areas. The resulting projection is often called a shadow (light is visible light).
Step 2 classify
If you carefully observe the shadow under the electric light, you will also find that the middle part of the shadow is particularly dark and the periphery is slightly shallow. The particularly dark part in the middle of the shadow is called umbra, and the dark part around it is called penumbra. These phenomena are closely related to the linear propagation of light. If you put a cylindrical tea cone on the table and light a candle next to it, it will cast a clear shadow.
If two candles are lit next to the tea cone, two overlapping shadows will be formed. The overlapping part of the two shadows is completely black without light, which is the umbra; Next to the umbra, where only candles can shine, is the penumbra that is half bright and half dark. If three or even four candles are lit, the umbra will gradually shrink and many layers will appear in the penumbra.