Teacher: Teacher Qu.
Activity Name: Math Activity
Activity Content: Decomposition and Synthesis 6
I. Activity objectives
1. Stimulate children's interest in math activities.
2. Through the observation, comparison and development of children's preliminary reasoning ability, children can understand the complementary and interchangeable relationship of numbers.
3. Know the composition method of 6.
Second, the activity preparation
1.6 watercolor pen.
2. pebbles, the paper is still wet.
Third, the activity process
1. Review the decomposition components of 5.
(1) Explore the interchangeability of numbers.
Teacher: "Who knows how many five can be divided into?" ? Write a composition of 5 on the blackboard. As shown in the figure below:
5 5 5 5
∧ ∧ ∧ ∧
1 4 4 1 2 3 3 2
Teacher: "5 can be divided into 1 and 4, and 5 can be divided into 4 and 1. Where are the similarities and differences between these two components? "
Teacher: "5 can be divided by 2 and 3, and 5 can be divided by 3 and 2." Where are the similarities and differences between these two components? "
(2) Write the composition of each number within 5 by interchange method.
A way for teachers to write the numbers 3, 4 and 5 on the blackboard. Ask the child to write another one.
2. The decomposition of learning 6.
(1) Teacher: "Today, the teacher brought six beautiful watercolor pens. These six watercolor pens were distributed to two children. How do they divide it? " "Please try 6 pebbles each, and then take notes."
Children operate and explore various methods of 6, and teachers observe and guide them. Remind your child to complete the division, take notes and find out the points of 6.
3. discussion.
(1) Teacher: "How to divide it? How is it recorded? " "How many points have you found?" "How many ways are there?"
(2) games.
Teacher (showing two mysterious bags): "Please ask a child to touch it. How many sweets are there in it? " Then let's take a look together. How many sweets are there in a * * *? Change the number of sweets in one of the bags and let other children touch them.
Fourth, activity extension.
Put pebbles in the activity room to guide children to operate in daily life.
Five, warm tips
1. Guide the children to write the points of 6 in an interchangeable way.
2. Children should wash pebbles first.
Sixth, reflection activities.
In the teaching content of Decomposition and Composition 6, I pay attention to creating meaningful activity situations and providing children with opportunities for independent exploration and cooperation. Allow children to learn in their own different ways, so that different children can get different development in mathematics learning, which reflects the process of teaching students in accordance with their aptitude. 1. Create a scene to arouse interest in an active atmosphere. In this class, according to the teaching content and the children's personality characteristics, I boldly created and used teaching materials, and introduced the topic with the game scene of "dividing colored beads", which attracted the children's attention, made them in a positive state from the beginning, stimulated their thinking and aroused their interest in learning mathematics. 2, hands-on operation, feel happy in cooperation and communication. Because children have some knowledge and experience of decomposition and combination, I ask them to try, explore, record and communicate the results of their attempts. In this process of exploration and communication, children will be deeply impressed, and at the same time, they will enhance their self-confidence and stimulate their sense of success and pleasure. In short, in teaching, teachers should design lively teaching links, constantly stimulate children's interest and desire in learning, constantly encourage children to experience the joy of success and cultivate their positive emotions.