2, learn from top to bottom, from the whole to a small part of careful observation, comparative observation, on this basis, judge and find out the shadow of the real thing.
3. Cultivate children's meticulous observation ability.
Teaching preparation 1, projector; 2. The child has an operation card (the difficulty of the content on the operation card is progressive) and a pen; 3. Two teacher's teaching model drawings, a paper stick, two slightly different plush bear toys, a red pen or chalk are pasted on both sides of the blackboard; 4. Preparation of shadow knowledge.
Teaching process 1, introducing language interest and attracting film friends.
Teacher: Children, I really want to be friends with you. Would you like to be friends with me? (willing! ) Nice to make friends with you! I also brought a good friend of mine today. Where is my good friend? The teacher looked around a little. ) 1, 2,3 My good friend, please come out! At this time, the projection is bright, the teacher stands in the light and poses beautifully, and the wall immediately presents a shadow shape. Who is my good friend? Your shadow. ) right! My good friend is my shadow (as shown in figure 1).
2. Play, say and perceive the relationship between shadows and objects.
(1) I feel different shapes and shadows when playing.
Teacher: Who wants to come up and invite their shadow friends? Please come up with four children at a time and repeat twice. After the child comes up, the teacher reads children's songs: 1, 2, 3, please come out! After reading "Please come out", turn on the projection lamp and a child's shadow appears on the wall. ) Teacher: Whose shadow friend is this? How did you know?
Yang: Because the shadow is the same as him ... After some communication, the teacher came to the conclusion that the shadow friend's appearance is the same as that of the children. Children look different, and so do their shadow friends (Figure 2).
(2) Observe the subtle changes of shadows while playing.
Teacher: Who is here? (Two little bears. ) Look carefully! Where is Huang Xiong's shadow friend? Where is the shadow friend of White Bear? How did you know?
Children: the yellow bear is bigger and the white bear is smaller; The yellow bear has a small flower on its head, but there is no flower on the white bear's head. The white bear took a small cup, but the yellow bear didn't ... Teacher: What bright eyes the children have! When we are looking for movie friends, we can look at their overall shape first, and then look at their differences from top to bottom, so that you can find out who is whose movie friend (as shown in Figure 3).
3, the use of observation methods, * * * cooperate to find shadow friends.
(1) Teacher: Little friend, there is a little fox who can't find his shadow friend. What a hurry! Do you want to ask children for help? (willing! ) Look! A little fox and many similar shadows appeared. Please come and observe carefully.
(2) Wait a minute: "Who is Fox's movie friend?"
The teacher pointed to the shadow of children's unanimous disagreement and said, why not? (Different shape: forelegs backward ...) And take this shadow to one side.
The teacher pointed to the agreed shadow of the two children (slightly different) and said, "The child said that this is his shadow friend, and this is also his shadow friend. First compare these two shadows (put them under the fox for children to compare and observe) and see if it is the fox's shadow friend. Contrast and look carefully from beginning to end. (After the child says "no") Q: Why not be the fox's friend?
Teacher: Oh! Fox has a long beard, but this shadow doesn't, so he is not his friend. Who is the fox's shadow friend? The children are pointing at each other. ) Yes, this is its shadow friend. (The teacher circled it with a pen. ) teacher: it turns out that these two shadows are just slightly different in beards, which is really hard to find. It seems that it is necessary to observe carefully (Figure 4).
4, the use of observation methods, children think independently.
(1) Teacher: Little Fox is so happy that the children helped him! But there are still many things here where they can't find their movie friends and want to ask children for help. Would you like to? (willing. (2) Put forward operation requirements.
Teacher: Look! Who can't find a shadow friend? Bicycles, ants, gourds, mice. Before looking for a shadow friend, the teacher made a request: please observe carefully from top to bottom, and look at them one by one, keep quiet and think for yourself, so as to find their shadow friend. After finding their shadow friends, draw their circle with a pen. Don't look for germanium Otherwise they won't be happy! Now take out your operation card and start!
(3) Children operate independently. Teachers should pay attention to observation, suggest that children think independently, and remind fast-moving children to pay attention to inspection. ) (4) Evaluation of communicators: Children, have you found it? Let's tell them together!
Say the first one: Teacher: Come and tell it, which is its shadow friend? (1) Do you agree? (circle) Why not this? This one has no cushion, and the position of the bell is different from it. ) Say the second: Teacher: Who is its movie friend? (2) What a careful observation! It is the shadow friend of the little ant. (Draw a circle) Why not? A hand is missing. ) Third: Teacher: Who is its movie friend? (First and second) Now there are two views. Let's look at this first. Is it the same as the gourd doll? What is the difference? (The headscarf is different. This small place is different, and all the children found are great!
Fourth: Teacher: Who is its shadow friend? (There are many answers) Shall we look at the first one first? No, there are many tails and different ears. Draw a cross. ) Let's have a look at the second one, shall we? No, the beard is different. What is the shadow friend of the mouse? (the third one. ) teacher: it's hard to find the shadow friend of the little mouse. You must find one of the three. But many children found out, you are great! In the future, we will put some more difficult ones in this area. Please find their shadow friends from the four shadows. You can have a try and see who is the cleverest.
(5) Revise the homework, and the teacher will make a comprehensive inspection.
Teacher: Do you think everything is all right, little friend? If you make a mistake, you can put a cross on the original one and find a new film friend. Suitable children can play games with their shadow friends.
5. Activity extension: Children play games with their own shadows freely.
The finished children can play shadow games freely under the light.