1, you can use the adjacent number law of 5 to find the adjacent numbers of 6, 7 and 8.

2. Primarily perceive the arithmetic relationship between adjacent numbers within 8.

Key points and difficulties:

1, transfer knowledge by using the law of adjacent numbers, and then find the adjacent numbers of 6, 7 and 8.

2. Primarily perceive the arithmetic relationship between adjacent numbers within 8.

Activity preparation: 1, 1-8 digital headdress and badge for each person.

2. 1-7 bitmap cards and some numbers. 10 red, blue and white snowflakes, one for each person.

Activity flow:

First of all, let's review the neighbor number of 1-5 in the game "Finding Friends".

Children put on headdresses to make digital dolls. The teacher played the tambourine and said, "Hey, my tambourine is looking for a friend." The children all said, "Hey, hey, come and find a good friend." The teacher ordered the children to stand up and say loudly, "I am a digital doll ⅹ", and then the two digital dolls next to this number would say, "Hi, hi, I am your good friend."

2. Children's grouping operation: queue the cards of 1-6, match the corresponding numbers, and tell the adjacent numbers and relationships of each number from 2 to 5. Add 6, 7 map cards to each group, and let the children deduce the neighbor number of 6, 7 according to the neighbor number law, and give the reasons.

Third, learn the neighbor number of 8.

1, the teacher shows the number 8, let the children put out the corresponding red snowflakes; The teacher clapped seven hands and asked the children to put out corresponding white snowflakes; The teacher shook the tambourine nine more times and asked the children to pose accordingly.

2. Let the children arrange according to ordinal number to verify the relationship between them. It is concluded that 8 has two adjacent numbers. The number less than 8 is 7, which is its child, and the number greater than 8 is 1, which is 9, which is its big friend.

3, playing games: good friends look up.

Let the children put on digital cards and dance to the music. Ask a child to look ahead. At the end of the music, other children will judge whether the dancing child is her neighbor or not according to the numbers on her chest. If you stand on his left and right respectively, other children will check whether it is correct. The game is repeated.

4. Teachers and children sum up the neighbor law together. 1 has 1 adjacency numbers, others have two adjacency numbers, 1 fewer children, 1 more friends.

Put away the toys and have a rest after class.