Activity objectives:
1, through activities, let children review and consolidate their understanding and classification of circles, triangles, rectangles and squares in arithmetic games.
2. Let children imagine boldly and use geometric figures to create.
3. On the basis of perception, cultivate children's observation, imagination, thinking ability and language expression ability.
4. Experience the fun of math group games.
5, preliminary training observation, comparison and reaction ability.
Activity preparation:
1, computer, self-made courseware, etc.
2. Operating materials: various circles, squares, rectangles, triangles, watercolor pens, glue, scissors, etc.
Activity flow:
(A) Review and consolidate the understanding of graphics
1, click the courseware-show a circular picture, and ask: What is this figure? (Round) Click Courseware-Show pictures of round, square, rectangle, triangle and other items. Question: What items do children see as round? (Fruit box, pillow, watch) Click the mouse-round objects jump and are classified into circles.
Review and consolidate the understanding of squares, rectangles and triangles, as above. Teaching assumption: adopt the game form that children like to consolidate their understanding of graphics, so that children can experience the joy of success in the game and actively participate in activities. This kind of game can't be realized by traditional teaching methods, and it also stimulates children's interest in computer, a modern educational technology.
(B) using graphics to spell out objects
1, click the courseware-four anthropomorphic graphic dolls appear. Today, our graphic dolls bring some skills. Do you want to see them?
2. Demonstration courseware (content is five simple to complex examples: chicken-flower-house-tropical fish-robot).
(1) Demonstrate the chicken puzzle process, and the computer will automatically present the puzzle process with beautiful music for children to observe and appreciate. Guide children to observe. Q: What is this? What figure is it made of?
(2) Click on flowers, houses, tropical fish and robots as above.
(3) Let children spell objects freely and encourage children to imagine boldly.
Children, the graphic dolls want to play games with us, too. Look, children, there are many graphic babies on the plate. Please choose your favorite graphics and use them to make your favorite items. Let me see which child is the cleverest and changes things differently from others. "
Teaching philosophy:
1, five examples with different difficulties are given to adapt to the development level of different children.
2, the body is properly used, and the jigsaw puzzle process automatically appears, which overcomes the disadvantages of traditional teaching teachers who are busy talking and pasting and children can't see clearly. At the same time, the whole puzzle process is accompanied by music, so that children can enjoy beauty while observing.
3. Children boldly imagine and develop imagination and thinking ability.
(4) Show all children some children's works with a scanner. (5) Use objects to combine pictures to guide children to tell stories. 1. Demonstrate multimedia courseware (the content is to combine objects into pictures with music on the basis of spelling objects).
(1) Question: What is this painting made of?
(2) The teacher told this picture into a story.
2. Children can combine pictures freely in groups, and encourage them to combine pictures according to their own ideas and make up stories for everyone to listen to.
The teachers gave positive comments and the activity was over.
Teaching philosophy:
On the basis of the previous links, this link further improves the requirements, on the one hand, it cultivates children's hands-on operation ability and imagination, on the other hand, it cultivates children's oral expression ability.
Activity expansion:
1, works, learn from each other. Show the works of all the children in the class, guide the children to appreciate the works with high skills and strong creativity, and also find their own advantages in some unremarkable works to safeguard their self-esteem.
2. The corner provides various graphic materials to stimulate and encourage children to do puzzles at any time or do them themselves.
Teaching reflection:
I can combine the age characteristics of the children in the middle class to determine the goal and form of the activity. Because of the age characteristics of children's intuitive action thinking and image thinking, I adopted the way of operation and game in the whole mathematics activity, so that children can feel, explore and summarize themselves in the process of doing it.
Middle school children's cognition is limited to simple graphic segmentation and assembly, so on the basis of children's experience of triangle division, we design square division and assembly activities to further understand the division and assembly of each graphic.