1, learn the adjacent numbers within 5, and let the children know that the adjacent numbers of 2, 3 and 4 are 1 and 3, 2 and 4, 3 and 5.

2. Understand the simple relationship between adjacent numbers and apply it to real life.

3. Cultivate children's concentration, imagination and operational ability, and improve children's initiative to participate in and explore mathematical activities.

4. Develop children's logical thinking ability.

5. Let children understand simple mathematical principles.

Activity reflection:

The focus of this lesson should be to learn to find adjacent numbers first, and then to understand the relationship between adjacent numbers, so that children will be more acceptable. Introduce the adjacent numbers to children with the word "beside" that children can easily understand. First of all, please stand in front of everyone in a row with digital headgear.

Then let the children talk about the five digital babies next to them and point them out one by one. Children can say digital baby 1 next to digital baby 2, and digital baby 2 next to 1 and 3 ... Although there is no number 6 on the stage, children can say that 5 is next to 4 and 6, so the focus of this lesson is easy to solve.