Activity objectives:
1, initially perceive the cylindrical shape characteristics.
2, can identify cylindrical objects, can find similar objects from the surrounding environment.
3. Cultivate the ability of observation and discrimination.
Activity preparation:
1, teaching aid preparation: some building blocks of the cylinder;
2. Operation Manual: Volume 6 P53.
Activity flow:
1, preheating activity.
(1) Teachers and children greet each other.
(2) Route, online games: Touch * * and come back quickly. Some big bricks, blocks and cans are placed in the circle. The children listened to the music and walked freely in circles.
2. Group activities.
(1) Review cuboids, cubes, spheres, etc. And a perception cylinder.
Let a child reach into the phase to choose a geometric figure, touch it, think about it, and describe to other children loudly what this magical thing looks like after fully perceiving it.
(2) Know the cylinder.
The game continues. Children touch the cylinder. After description, when other children can't guess what geometric shape it is, the teacher holds up the cylinder and tells children that this shape is called a cylinder.
Let children find out the objects with the same shape as the cylindrical building blocks in the classroom, and feel the shape characteristics of the cylinder through their own touch and play.
(3) Let children try to roll cylinders and spheres, and observe the characteristics and differences when rolling. Then try to roll off the writing cloak and see who rolls fast and far.
3. Complete the operation manual.
(1) The teacher demonstrated the exercise book.
(2) issuing children's operation books, and teachers touring to guide children.
(3) The teacher corrects the children's operation books and urges the children to correct their mistakes.
4. Exchange summary and organize school tools.
Guide children to visit the results of their peers' activities and sort out homework materials.
Activity reflection:
Children often come into contact with cylinders in daily life, but cylinders are common three-dimensional geometric figures, and children's consciousness is vague, so it is difficult to connect with society. By comparing the common cups and jars in life, children can find the particularity in the free expansion of play, so as to understand the specific characteristics of the cylinder. Therefore, children will be more interested. Due to various objective reasons, the children in our class are very different. Children with strong ability have good language expression ability, complete answers to questions and good observation. However, children with weaker abilities are very different. Therefore, this situation should be taken into account when designing activities. In the activity, I adopted the method of fostering strengths and avoiding weaknesses, and the children with strong ability acted together with the children with relatively poor ability to guide them to learn from each other. My activity is also to cultivate children's observation ability, so that children can judge the shape characteristics of cylinders through observation and comparison, and learn to perceive various cylinders with various senses. Finally, the children ended their activities in a happy "cart-pulling" game. The new "Outline" proposes to create a relaxed environment so that every child can participate in practical exploration activities and feel the joy of exploration and discovery. After the guidance of experts and continuous trial teaching and revision. I feel happy in this teaching activity.