Lesson plans for preschoolers to recognize the number 17, to recognize the number 18, to recognize the number 19, to recognize the number 20

Activity goals:

1. Perceive quantities within 3 and develop Children's thinking ability.

2. Let children know that 2 plus 1 is 3, learn the correct counting of 3 objects with hand and mouth, and tell the total number.

3. Create game situations to stimulate children’s interest in mathematical activities.

, Activity preparation:

Preparation of teaching aids and learning aids: courseware pictures with three eggplants, three apples, etc. Students prepare 3 pencils, 3 round pieces of chalk, teaching method: guided reading game teaching tutorial:

1. Review

1) Count from 1 to 2.

2) Composition of 1.2.

2. New Lesson 1. Count objects whose quantity is 3. ,

(1 Show 3 eggplant courseware pictures and guide students to observe the pictures carefully.

Ask: "What is this picture about?" Puppy.

Count, how many are there in one ***?

Add one, how many are there in one ***?

Students answer. Finally, the teacher said: 2 plus 1 is 3. This is the number of eggplants.

We can use the number "3" to represent it. Let’s learn “3”.

Writing on the blackboard: “3”.

Explanation: The word “3” is like an obedient ear, written in two strokes. Write a semicircle, and the second stroke is a semicircle.

(2) Take out 3 apples and demonstrate counting.

Teacher asks: Show the apples, "How many are these?" Count, and then ask how many?

(3) Show the eggplants and let the children come on the stage and count 3 eggplants.

(4) Show the children and let the children come on the stage and count 3 children. /p>

(5) What objects in life have the number 3?

(Inspire children to say: three oranges, three pencil boxes, three erasers) 3. Teaching 3 composition.

(1) Students take out 3 apples and arrange them into two piles.

(2) Let students talk about different ways of arranging them. p>

(3) Guide students to summarize and organize, focusing on explaining that 2 and 1 form 3, and 1 and 2 also form 3. In fact, they change the positions of the two piles of small sticks.

So you see. If 2 and 1 form 3, you can think of 1 and 2 forming 3.

Teacher-student activities: Invite three children to practice (3).

a. Together. Talk about the composition of 3. (2 and 1 make up 3, and 1 and 2 make up 3.)

b. The teacher asked: "2 and 1 make up 3. What else can you think of?"

IV. Teacher-student interactive game:

1. Ask the children to stretch out their hands and count how many legs their stool has.

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2. Count the words "Study hard" on the wall of the classroom.

3. Tap the table 3 times.

4. Find a friend. , place the learning tools under the pasted number cards (show the courseware),

5. Summary: A lamb has four legs, and a kitten and a puppy have four legs. They can all be represented by 4. Quantity.

5. Guidance on writing.

1. Talk about how to write 3.

2. Do you have any good ways to remember 3. Summary after communication.

3. Communication.

4. Children practice writing.

6. Activities and exercises to consolidate their understanding of 3.