The Shadow of Science 1 The Design Background of the Secret Class Teaching Plan
Children are curious, curious and exploratory, so I chose this teaching content. I use the concept and principle of "learning by doing" to design and organize this teaching activity. The content of this activity is in line with children's age characteristics and thirst for knowledge, and it is a common phenomenon in children's daily life. Children find a shadow in life, and they can solve problems with their hands and brains by various means.
moving target
1, let children perceive the relationship between the change of shadow and the distance of light source and illumination angle through their own exploration.
2. Stimulate children's interest in exploring science.
3. Cultivate children's curiosity about things and be willing to explore and experiment boldly.
4. Willing to try boldly and share experiences with peers.
5. Stimulate children's interest in scientific activities.
Teaching emphases and difficulties
1, guide children to explore and let them perceive the relationship between the change of shadow and the distance of light source and illumination angle.
2. Inspire children to express their findings with simple symbols.
Activities to be prepared
1. Create a darkroom.
2. Projection screen, three-dimensional toy, flashlight, recording board, paper and pen.
Activity process
1, suspected import
Question: What happened to Mr. Shadow? What's changed about him? Why is this happening?
2. Activate thinking, guessing, imagination and construction.
Organize children to discuss freely: What methods can make shadows magic?
3. Independent exploration.
Group experiments and record the results.
Focus: guide children to explore and let them perceive the relationship between the change of shadow and the distance of light source and illumination angle.
Difficulty: Inspire children to express their findings with simple symbols.
4. Share communication.
5. Throw questions and expand.
Question: Where does the shadow come from? Can he only be black? What other magic can he do?
Teaching reflection
Shadow has always been a topic of interest to children. Integrating science education into students' life is the embodiment of new ideas. The design activities aim to let students explore shadows, let them understand the close relationship between shadows and light, stimulate students' curiosity and interest in shadows, learn scientific methods and develop a good scientific attitude.
At the beginning of the activity, I led it out in the form of guessing riddles, so that the students could find the shadow of their friends. In this way, students can quickly concentrate and quickly enter the classroom role, and then let the children explore and discover the shadow by themselves, let the children realize the true knowledge from practice, let the students explore and discover by themselves, cultivate the ability of independent cooperation and exploration, understand the mystery of the shadow through active discussion and careful observation, and demonstrate the innovative spirit and thinking ability of generate. After the first operation, the children got the truth that "because there is light, the object blocks the light, so the shadow is produced", and then they imported it from their life experiences and watched the multimedia courseware "Shadow in Life". Starting from their cognition, exchange their existing life experiences and let them speak freely. While developing their language and thinking, they aroused their interest in the shape, size and change of shadows, which led to their interest in the second exploration. The focus of the second exploration is to guide students to shoot objects from different directions and find out the changes in the orientation and size of shadows. In this operation, not all the children have successfully discovered the secret of shadow change, so I invited several successful children to the front desk to demonstrate the operation, I made a guiding summary, and then let all the children perform the operation for the third time and let them record the operation results. The effect is very good. All the children have experienced the pleasure of success in scientific exploration activities and cultivated their self-confidence. Finally, the students learned about the influence of shadows on people's lives and watched a short film about the causes of solar eclipse.
In this scientific exploration activity, I have grasped the characteristics of children's strong curiosity and hands-on ability to scientific phenomena, so that children can discover scientific truth in completely independent practical exploration, and the activity effect is good. However, there are also some problems, such as children's individual operations have no purpose, and they can't find problems well and experience the joy of success.
This science activity class is a secret class according to the activity manual of the Municipal Science and Technology Museum. This teaching is a growing teaching, because teachers from the Science and Technology Museum and experts from Beijing also came to my class today and commented on my class. Teacher Shang first praised the good side of my class, then discussed the shortcomings of the class, and combined with the opinions of Teacher Lu of the Science and Technology Museum, made changes with me, which really made me feel the science.
The secret lesson plan of the shadow of science 2 activity purpose:
1. Cultivate children's ability and desire to perceive and explore.
2. Discover the relationship between the secret of shadow and the light of the sun.
3. Explore and find that the change of shadow is related to the change of object position, and gain relevant experience.
4. Cultivate children's practical ability and logical thinking ability.
Activity preparation:
Paper (various graphics or paper-cuts), scissors, chalk, some pictures of buildings and shadows, flashlights, models or toys of various shapes, etc.
Activity flow:
First, preparation before class,
1. Come to the garden in the morning, take the children to the playground, let them stand in the sun, observe their shadows, and take out chalk to mark their standing positions and their shadows (children can help each other).
2. Observe the position of the shadows of everything in the kindergarten.
Second, import pictures and speak.
1. Pictures showing various things and their shadows. Please observe them. What are their characteristics? What are their similarities? What is that? Where have you seen it?
2. Why is this happening? (Let children guess and think boldly)
Third, observe carefully and guide children to discover the secret of shadow.
1. Take out the model or toy and put it in the shadow, so that children can observe whether it has a shadow. Why?
2. Put it in a bright place and observe it again.
3. Illuminate and observe with a flashlight in the dark.
The same things are put in different places, what changes have they made? Why is this happening? )
Fourth, guess and further discover the secret of the shadow.
1. Show pieces of paper in various shapes and illuminate them with a flashlight. Let the children observe the shadow projected on the wall. Let the children guess whose shadow they are.
(Thinking: Why are their shadows different? Are all our children's shadows the same? )
2. What happens to the shadow when the flashlight is pulled closer or farther away? (Thinking: Why? )
(Guide children to discover that shadows are related to the distance between light and objects. )
Fifth, the game.
1. Teachers and children play hand shadow games together, asking children to experience the fun of participation and the interest of exploration and discovery.
2. Paper-cut with children, and take the cut shape to the light to observe the shadow shape of your paper-cut. Experience success and a sense of accomplishment.
Sixth, classroom extension: test results.
1. At noon, lead the children to the playground, find their own marked positions, observe the changes of shadows, and re-mark them with chalk of different colors.
2. Leave the park in the afternoon and observe and mark again.
Seven. abstract
Let the children sum up the secret of the shadow and come to the garden to tell the teacher the next day.
The secret lesson plan of the shadow of science 3 This activity aims to combine the interesting phenomena in children's life with their age characteristics, create conditions for children and stimulate their interest in exploration. Through hands-on operation, direct perception and personal experience, guide children to discover various interesting phenomena of shadow and feel the fun brought by shadow.
moving target
1. Preliminary perception of the relationship between light and shadow.
2. Be able to combine interesting phenomena in children's lives with their age characteristics.
3. In the process of exploration, let children feel the fun of discovery and stimulate their interest in exploring the mysteries of nature.
Important and difficult
Focus: Perceive the positional relationship between light and shadow.
Difficulties: In the process of exploration, we can cooperate in groups and find ways to make the shadow disappear.
Activities to be prepared
Children: experience before stepping on the shadow.
Teacher: Castle model, big record sheet, flashlight, curtain, paper, pen, building blocks, plush toys, PPT.
Activity process
First, the beginning part
1. Tell the story of "Shadow Kingdom" with shadows, lead to the theme and stimulate children's interest.
Second, the basic part
(A) the formation of shadows
1. Let the children guess how the shadow is formed.
2. Summary: If you want to create a shadow, you need light, objects illuminated by light, and places to capture the shadow.
(B) the change of the shadow
1. Teacher: Shadow Kingdom is going to hold a castle shadow party. I want to ask the children to help me create different castle shadows.
2. Operating rules: in pairs, put the object on the dot in the center of the paper, draw different shadows within the specified time, and discover the secret of light and shadow.
3. Guide children to take pictures of objects from different directions and find the changes in the position and length of shadows.
4. Summarize and record on the record sheet:
(1) The light is on the left and the shadow is on the right; The light is on the right and the shadow is on the left.
(2) When the direction and position of the object illuminated by the flashlight change, the direction and position of the shadow will also change.
(3) the disappearance of the shadow
1. Teacher: While the shadows were partying, the witch sneaked into the shadow kingdom from the sewer. He wants to capture the shadows of all castles. The shadows were so scared that they wanted to hide all the shadows of the castle. Can you help them?
2. Operating rules: In pairs, use the materials provided by the teacher to explore ways to eliminate shadows when there is a light source.
3. Children share the experimental results:
(1) You can hide small building blocks behind other objects.
(2) When an object is illuminated by multiple beams, the shadow will become thinner and thinner and may eventually disappear.
You hid all the shadows of the castle, but the witch didn't find any and left disappointed.
Third, the conclusion part.
Teacher: In our life, shadows appear around us every day, which will bring us a lot of fun, such as shadow play, hand shadow games, shadow play and so on. But shadows can also bring a lot of inconvenience. When we write, the shadow will be projected on the notebook, which will affect our writing. When the doctor is doing surgery, the shadow will make the doctor unable to see the sick part of the patient clearly, so people use the method just discovered by children to make the shadow disappear with multiple flashlights.
Fourth, the extension part
Put the materials into the science area, so that children can discover more secrets of shadows.
Activity reflection
Children have pre-experience of regional activities and life, and understand the causes of shadow formation. In the first link, I helped children sort out the three elements of shadow formation, so my activity focused on the position relationship between light and shadow. The difficulty of the activity is to let children's groups cooperate to explore ways to hide shadows.
In the introduction, I adopted the way of interaction between shadow and children, which directly led to the theme of shadow "See the shadow first, then see it", and the children quickly brought it into the story situation of the shadow kingdom, which aroused the children's interest in exploration. In the first exploration of the relationship between light and shadow, from the perspective of children's cognition, we communicate the secrets discovered in the experiment just now, so that they can speak freely, develop their language and thinking, and at the same time arouse their interest in the position, size and change of shadow, thus arousing their interest in the second exploration. In the second step of exploring the disappearance of shadows, I chose open materials, and children were free to choose materials to complete the experiment. In the whole activity, children are highly involved and actively explore the position relationship and length relationship of light and shadow. The children all experienced the joy of success in scientific exploration activities and cultivated their self-confidence.