This activity is selected from the story of "The House of Magical Mathematics" by Lu Jie, a child psychologist. A lonely little hedgehog weaves some colored beans into a necklace in a certain order to pass the time. The hedgehog found a good friend with this beautiful necklace. Through interesting fairy tale scenes, picture books skillfully integrate the mathematical knowledge indirectly arranged in early childhood into the story of picture books.

Activity objectives:

1. Use the situations in picture books to help children master the experience of indirect sorting.

2. Encourage children to boldly try to make their own rules and sort them according to the rules.

Let children realize that it is a happy thing to help others.

Activity preparation:

1, little hedgehog's necklace PPT,

2, colored beads, rope.

Activity flow:

First, the story import, learning indirect sorting method

The teacher said: children, today the teacher invited a lovely little animal. He is covered with thorns. Who do you think it is? (Hedgehog) (as shown in figure 1) This little hedgehog has a nice name called Raya. Raya is always alone, because she is covered with thorns, so she often shrinks tightly together, and small animals run away when they see it! Every day. Laya plays alone and eats alone. One day, laya the Hedgehog picked many peas from the yard.

1, Question: Look, children, what's the difference between these beans? (color, size)

Raya watched these little beans have a brainwave and thought of a good idea!

Question: Guess what it will do with these beans? (Children tell)

3. Listen to the story: Let's listen to what the hedgehog has turned peas into. The teacher told me that laya picked up the beans, put them on, put them on and made a necklace. Do you think Raya's necklace is beautiful? Can you tell the secret of Raya necklace? What do you think is the beauty of the necklace?

(Children discover the law of red and green) One is red and the other is green. . . . . It turns out that this necklace is red and green. . . Arrange according to this rule.

The next day, Laya went out wearing this beautiful necklace. How will the small animals in the forest react when they see Raya's necklace? Look, what's the expression of the little animal? Why not avoid it this time? (Children tell)

The teacher told a story: (When the small animals saw Leia's necklace, they all thought Leia's necklace was really beautiful. They also want to have such a necklace! Laya was glad to see that the little animals were no longer afraid of him, and wanted to make a necklace with him. So Raya said, "Come on, I'll take you to pick up beans. They can be made into beautiful necklaces! " "Raya took the animals to pick up beans in the Woods and made necklaces when she came back. )

Design concept:

Stories can arouse children's interest most, and mathematics, the most important basic subject, inadvertently incorporates wonderful stories. In colorful pictures and interesting fairy tales, children naturally accept mathematical knowledge, so they will not learn passively and will not feel bored.

Second, try boldly.

1, the small animals have picked up a lot of beans and are ready to show their talents. They have already started. Look, the rabbit is the first to make a necklace. Let's go and see how the rabbit's necklace is put on. (Figure 3)

(Children discover the law of red, yellow and green) There is a color secret in the necklace. Let's talk about this secret: a red, a yellow, a green, a red, a yellow and a green. ...

2. Transition: The rabbit's necklace is on, so beautiful! But the little monkey next to him was in a hurry.

Let's see what trouble the little monkey is in. (Show Picture 4)

Guide the children to observe the incomplete necklace and say the rules. )

The teacher also prepared some red, yellow and green peas for the children to wear necklaces. Can you help the little monkey wear a necklace according to the rules?

Summary: The children are really good. Let's show them to the teacher, shall we? Really, every child's necklace is the same as his own! Little monkey is so happy. He thanked you.

The duckling on the side was anxious and clamored for a beautiful necklace. Would you like to help?

Design concept:

From the shallow to the deep, step by step, this has always been the law for children to learn knowledge. In the process of this activity, let the children find the law first, let the children find the law quickly, and then smooth it according to the beginning, let the children find the law first, and then operate to solve the problem. Pave the way for the next link.

Third, children's operation

1, children, first of all, I want to see what rules you are going to use to help ducklings make necklaces.

Teacher demonstration: let the children say what color to put first. The second and third ...)

Are there any different emission regulations for children?

2, children's operation, teacher tour guidance.

Ask a child to talk about his own emission law first and show it on the blackboard, then talk about different laws. )

Design concept:

Design by yourself, use your head and practice, develop children's thinking and exercise their practical ability. Test children's mastery.

Fourth, emotional sublimation, experience the happiness of mutual assistance.

With everyone's help, the duckling has a beautiful necklace. Are you glad that you helped him? Happiness? Let's feel happy together (play happy clapping music)

Design concept:

Helping others is a child's nature. In this happy atmosphere, after listening to the stories, they learn to classify according to the rules.