1, actively explore the shape and changes of light spots, generate interest in exploration, and experience the fun of exploration.
2. Willing to express and communicate the process and results of exploration in language.
3. Cultivate observation, imagination and practical ability.
Important and difficult
The focus and difficulty of this activity is to explore the shape and change of light spots and express the process and results of exploration in fluent language.
Activities to be prepared
1, this activity should be carried out under sunny weather conditions, and the sunshine coming in from the outside is indoor.
2. Mirrors, scissors, glue sticks, pencils, plasticine, paper, etc.
3. Children have perceptual experience in mirrors and can make patterns in various ways.
Activity process
First, free exploration-where does the light come from?
1, game: mirror and light. Teachers and children play in sunny places with mirrors, peel off the light and reflect it to the ceiling or wall.
2. Question and communication: How to play? What is this bright and swaying word? Where does the light spot come from? Why did he move?
3. Summary: When the mirror reflects light on the wall, it will produce light spots, which will shake with the shaking of the mirror.
Second, guide the inquiry-why does the shape of the light spot change?
1, are the spots on the wall the same? What is the difference? Why?
2. What does the light spot on the wall look like?
Third, deep exploration-how to change the shape of the light spot?
1, guide children to discuss freely.
2. Children's operation and experiment. Guide children to paste homemade patterns or characters on the mirror, and then play the game of "mirror and light".
3. What did the children find when they communicated with each other?
Four. Extension of activities:
Invite parents and children to do the same experiment: use moonlight and light as light sources to explore whether the mirror can create a shaking spot.
Teaching reflection
Bruner, a famous American psychologist and educator, believes that "the best stimulus for learning is interest in textbooks". The content of this activity comes from children's interest in facula, which arouses children's learning enthusiasm and initiative.
Materials are the best inducement to stimulate and maintain children's interest in exploration. In this activity, I provided a large number of operational materials for children, taking the activity materials as the carrier, so that the activity steps are closely related to the goals, which is conducive to children's continuous exploration and verification. This activity adopted a combination of collective, group and individual activities. Children discuss, communicate and solve problems by observing, guessing and experimenting, which not only improves their learning enthusiasm, but also broadens their thinking and develops their various abilities.
This activity also has some shortcomings. First, if activities are conducted outdoors and children are given more time to explore independently, children may find more interesting phenomena. Secondly, safety education can be infiltrated in time. In the process of exploration, some children deliberately reflect light to their peers' faces, and strong light stimulates their eyes, which is very dangerous. At that time, because I caught this incident, I guided my children to combine their own life experience, educate them about the influence of strong light on their eyesight, and let them learn to protect themselves.