How much is a * * * in the first volume of the first grade mathematics of New Beijing Normal University (know the addition)?

Teaching objectives:

1. Understand the meaning of addition by combining familiar life background and existing life experience;

2. Explore the number addition within 5 in observation and operation activities;

3. Under the guidance of the teacher, learn to ask and answer addition questions from specific situations.

Teaching focus:

The addition will be calculated in 5 minutes.

Teaching difficulties:

Understand the meaning of addition.

Teaching aid preparation:

Multimedia courseware, 5 CDs, 5 pencils.

Learning aid preparation:

Five disks, five pencils.

Teaching process:

Preparation before class

The teacher plays music and the students sing after the teacher.

Teacher: It's great that all the students can come to class happily today! The teacher hopes that everyone can keep this mental state until class is over, ok?

First, create a situation.

1. Teacher: Today, Teacher Liu brought some animations to everyone. Please watch carefully. What did you see just now? Can you say a complete sentence?

Health: First three birds fly in the sky, and then two birds fly in. There are five birds in the sky now.

Teacher: The teacher will see who listens most attentively. Who can say it again loudly?

2. (Show the second slide)

Teacher: There are some small animals on the grass. Who can describe this picture in complete words like just now?

Health: There used to be 1 sheep on the grass, and two more came, and one * * * had three sheep.

3. (Show the third slide)

Teacher: Who knows what this sign means? Now that we are in the parking lot, please describe this picture in a complete sentence.

Health: There used to be three cars in the parking lot, but then two came. There are five cars now.

The teacher concluded: There are many such problems in life. Today, let's find out how many. (blackboard writing: one * * *, how many).

Second, teach new lessons and add.

1. Teacher: Now the teacher has changed a form. Please observe carefully. The teacher took out three pencils in his right hand and two pencils in his left. )

Teacher: First of all, teacher ..., then ..., a * * * ... (talking and acting). Who can say that just now?

Student: The teacher took out three pencils first, and then two pencils. A * * * has five pencils. (Very complete)

Teacher: It seems that students can describe the meaning of this picture in a complete sentence. Now the teacher is going to make it more difficult. Please listen carefully to the requirements. Can you turn the last sentence into a question to test everyone?

Student: The teacher takes out three pencils first, and then two pencils. How many pencils are there in a box?

Teacher: The teacher asked a student who listened most carefully to repeat it. Who can say it again loudly?

Teacher: Now take out your five pencils and talk about them together like a teacher. After writing, put the pen back in the corner of the table.

2. Teacher: So how many pencils are there in a box? Now we use a disc instead of a pencil to set it. The teacher represents a pencil with a disk. The teacher put the pencils first. How much should we set?

Teacher: How many more pencils should the teacher take out?

Teacher: Now look at the blackboard and count. How many discs are there in a * * *? In other words, a * * * has five pencils.

Teacher: Can you try to work out a formula?

Health: 3+2=5. (blackboard writing)

Teacher: What does "3" mean in this formula? Health: "3" means 3 pencils.

Teacher: What does "2" mean? Health: "2" means 2 pencils.

Teacher: What about "5"? Health: "5" means 5 pencils.

Teacher: Children, observe this formula carefully. What symbols do you find from this formula?

Teacher: We have learned the equal sign before. In this class, we will meet a new friend-plus sign. (blackboard writing: plus sign)

Teacher: Draw the horizontal lines of "+"and "=" with a ruler.

Teacher: Can you read this formula? The teacher asked a classmate to try to read it.

Teacher: By the way, this formula reads 3 plus 2 equals 5. (blackboard writing: pronunciation: 3 plus 2 equals 5). Read it together. Boys read books and girls watch them together.

Teacher: It seems that to calculate how many pencils there are, it is to combine the original three pencils with the current two pencils. (action)

3. Show slides (Panda).

Teacher: What are the animals in the picture?

Teacher: Can you ask a math question according to the sentence just said in this image?

Health: There are three pandas eating bamboo, two pandas playing with a ball. How many pandas are there?

Teacher: So how many pandas are there? We posed with a disc instead of a panda, and the teacher asked someone to put it on the blackboard.

Make a request: while posing, say what I put first, then what I put.

The people on the blackboard say it first, and then find two people to say it.

Teacher: Can you list a formula directly?

Teacher: Write this formula in your vocabulary book.

Teacher's summary: These questions are all addition calculations just now. When two parts are together to calculate a * * * * number, they must be calculated by addition.

Third, hands-on operation, a pendulum.

1. Teacher: Now, let's look at this painting together. Say it yourself, put what first, then what. Now count together, how many peaches are there in a * * *? Can you list a formula?

Collect CDs.

2. Teacher: Let's have a look at this picture. We don't have CDs now. Can you list an equation directly from the picture?

3. Teacher: What about this painting? The teacher can see the formula at a glance by seeing who is quick.

Open page 24 of the textbook and complete the calculation.

Fourth, practice.

1. Teacher: Let's go back to life by bus.

The teacher plays music, the students stand up, clap their hands and sing. )

Teacher: Let's look at some problems in life just now. Can we calculate them by addition? (It shows 1) Can this be calculated by addition? Can you make a formula according to this picture?

Teacher: (showing the second picture) Can this be calculated by addition? Who can directly tell the formula?

Teacher: (showing the third picture) How to arrange it?

Teacher: (showing the fourth picture) Who can directly list a formula according to this picture?

Teacher: (Showing the fifth picture) Look at the picture and say a formula directly.

2. Teacher: By solving the problems in life, we found that these two pictures are represented by the formula 1+4=5. 1 What does 1+4 in the picture mean? In the second picture, what does 1+4 mean?

Teacher: 1 can represent 1 yellow flower and 1 child, and 4 can represent 4 red flowers and 4 children.

Teacher: There are many things in life that can be expressed by this formula. What other things in life can be expressed by "1+4=5"?

Teacher: Are there any problems around us that can be calculated by addition? Look in the classroom.

Verb (abbreviation for verb) class summary.

Teacher: What problems have we solved through this lesson? (Projection with finger)

Health: How many are there in a * * *?

Teacher: How to calculate?

Student: Addition.

Teacher: We know that when we combine the two parts to find out what a * * * * is, we have to add it up.

Sixth, assign homework.

Teacher: Question: Can you write all the formulas with the number 5?

Seven, blackboard design.

Please download here: How many pencils does a * * * (courseware+lesson plan) have /aka: How many pencils does a * * * have?

Link: pan.baidu./s/ 1o6OUmwU password: qucu.

How many coursewares are there in the first grade mathematics attached to Beijing Normal University?

You can ask the school office, the academic affairs office,

The most direct thing is to ask your class teacher.

Good luck.

How many courseware solutions are there in the first volume of senior one mathematics published by Beijing Normal University?

1, looking for Baidu library

2. Input: How many coursewares are there in the first volume of senior one mathematics in Beijing Normal University?

3. Click Search

4. Find your favorite document.

5. Click Download

Step 6 rescue

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Can't send a link to Baidu. com。

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There are usually as many class hours as there are in the first volume of mathematics of Beijing Normal University Edition.

Coursewares are generally above class hours.

A * * * has about 48 courseware.

How many free courseware are there in the first volume of first-year mathematics of Beijing Normal University Edition * * * null First-year mathematics ppt First-year Chinese ppt First-year English ppt First-year mathematics ppt Eighth-year mathematics ppt First-year English ppt Seventh-year mathematics ppt Sixth-year Chinese ppt First-year primary school mathematics volume * * How many ppt?