1. Let children understand the meaning of addition and subtraction.

2. Let the children master the addition and subtraction of 2.

3. Let children learn to answer simple addition and subtraction oral calculation questions and cultivate their ability to do problems initially.

Activity preparation:

2 apples and 2 animals: lion, tiger, elephant and zebra. Activity flow:

First, talk about introduction to arouse children's interest.

Look what the teacher brought you today. (Display 1 apple)

② Show another apple and ask: 1 plus 1, a * * *, how much is it? 1 minus 1, what is it?

③ Guide children to say the meaning of addition and subtraction and the formula of addition and subtraction within 2.

Second, review the composition of 2

(1) Let the children recall that 2 can be divided into several and several.

(2) Children talk about teachers while writing on the blackboard.

Third, display visual teaching AIDS.

1.: The lion king wants to hold a meeting for all lions. First, 1 here comes the lion (show 1 lion picture). After a while, it was again.

Here comes 1 lion (showing two pictures of lions)

Q 1 1 and 1 How many lions are there?

② Why 1+ 1=2? Write the formula 1+ 1=2.

(3) But 1 Being the first to go home at the dance, how many are left?

Why 1- 1+2? Write the formula 1- 1=2?

③ Show the expressions of tiger, elephant and zebra in turn (the method is the same as above).

Five, guide children to dictate the application of addition and subtraction 2.

1. The teacher gave an example to illustrate the requirements of oral addition and subtraction application problems.

2. Let the children arbitrarily choose an addition and subtraction of 2 to do oral arithmetic problems.

3. The teacher praised and encouraged, and inspired and helped the children who made mistakes.

Sixth, play the game "Who is the fastest"

1. Each group should do a required question (addition and subtraction of 2).

2. The teacher shows the cards of addition and subtraction, and each group answers first, which group wins the fastest.

Seven, writing formula

1. Let children write addition and subtraction formulas.

The teacher checks and helps the children to correct their writing mistakes.

After-class analysis:

In this class, I pay attention to effectively guiding students to ask questions, study and solve problems by themselves, and complete the learning tasks of this class. In the introduction stage, children's favorite fairy tales effectively stimulate their interest, guide them to find math problems and make students full of curiosity. In the development stage, organize children to observe, operate and think, let children use their hands and brains, explore and learn independently, and cultivate children's independent learning ability and cooperation consciousness. In the consolidation stage, children can verify and apply new knowledge and deepen their understanding in situations close to real life. In the summary stage, let the children review what methods they have used and what knowledge they have learned in this class, so as to have feelings of liking mathematics and believe that they can learn mathematics well. In short, the teaching design of this class is based on the reality of children, so that children can easily participate in learning activities in teaching activities. Let mathematics truly become the mathematics that children need to learn and love to learn, and the mathematics that children can learn and learn well.