Mathematics activity in middle class: Know the neighbor number within 5. Activity goal: 1. Know the concept of adjacent number, and master that the adjacent number of each number is within 5. 2. Understand and be able to tell the relationship between adjacent numbers greater than 1 or less than 1. 3. Get interested in math activities through games. Activity preparation: 1, forest background map, 6 pictures of mushroom house.

2. A photo of a monkey, a photo of a bear and a photo of a tiger.

3. Three sets of digital cards marked with 1-6. There are several kinds of food used to decorate the buffet. Activity flow:

First, the beginning: a preliminary understanding of the relationship between "neighbors". Each of our children has his own neighbor. Please tell us who your neighbor is and let the children know what a neighbor is.

Second, the basic part:

Teachers tell and act out stories.

1. Ask questions after telling and acting the story:

(1) Panda says No.2 has two neighbors. Who are they? When should the little monkey's home be?

(2) The bear said that his family is the neighbor of No.5. Who is the neighbor of No.5?

(3) The bear's home is not No.6, so what date should it be?

2. In the process of recalling stories, stick digital cards on the mushroom room to realize the transformation from concrete objects to abstract numbers, and tell children the definition of adjacent numbers.

Who are the neighbors of (1)2? (1 and 3 are neighbors of 2, also called the neighbors of 2. )

There are two adjacent numbers: 1 and 3; 5 has two adjacent numbers, 4 and 6 respectively.

(2) Question: Are there any adjacent numbers in a. 3? Who are they?

Are there any adjacent numbers? Who are they?

It is concluded that 2, 3, 4 and 5 all have two adjacent numbers.

3. Children independently explore the adjacent numbers of 3, 4 and 5 (some children come forward to operate and collectively verify), and further infer the adjacent numbers of each number within 5.

(2) Review number 1-6. Understand that the relationship between adjacent numbers is greater than 1 less than 1.

Please speak more 1 (less 1) than me. "Let me ask you, kid, how much is 1 more than 2?" "

2. Then count down to the number 6. Now, please find out what's the secret between the adjacent numbers and tell everyone what you have found. Third, taste the buffet, consolidate the concept of adjacent numbers, and put forward requirements: first take a digital card and take the food with adjacent numbers according to the numbers on the digital card.