Teaching objectives of the first math lesson in grade three;
1, looking for the connection between life and mathematics.
2. Understand the content of this math book and stimulate interest in learning.
3. Make clear the requirements of math class and homework, and develop good study habits.
Through telling stories, I realized the importance of learning methods and mastered some math learning methods and skills.
Teaching emphases and difficulties:
1. Make clear your correct learning attitude this semester and do a good job in every class seriously and solidly.
2. Recognize the importance of learning methods and master some math learning methods and skills.
Teaching process:
First, the dialogue is attractive.
1. Do students know what this class is? How did you know? (blackboard writing: mathematics)
Everyone must have done a lot of meaningful things during the holiday. What did you do with the math knowledge we learned?
3. Tell me what new mathematics knowledge you have learned from your life?
Second, understand the learning tasks of this semester
1. If you look at the catalogue of mathematics textbooks now and introduce the contents of this book to everyone, can you do it? Just try it.
A: Student introduction.
B: the teacher added.
The learning content of this textbook
First, symmetry, translation and rotation.
Perceive translation, rotation and symmetry with examples; Simple graphics can be drawn on square paper after translation in horizontal and vertical directions; Through observation and operation, we can know the axisymmetric figure and draw the axisymmetric figure of simple figure on square paper.
Second, multiplication.
Can calculate two digits multiplied by two digits; Be able to estimate according to the specific situation and explain the estimation process; Can flexibly use different methods to solve simple problems in life and judge the rationality of the results.
Three. area
Understand the meaning of area with examples, estimate and measure the area of graphics with self-selected units, understand the necessity of unifying area units, understand and recognize area units (cm 2, m 2, km 2, ha), and carry out simple area conversion; By exploring and mastering the area formulas of rectangles and squares, we can estimate the area of a given rectangle and square.
Fourth, identify the score.
Be able to understand the meaning of scores in combination with specific situations and intuitive operations, and be able to read and write simple scores; Feel the process of comparing scores; Can calculate the addition and subtraction of fractions with the same denominator (denominator less than 10), and can solve some related simple problems; You can use scores to express some things in daily life and communicate.
Verb (abbreviation for verb) arrangement and display of data
Unit 7: Understand the meaning of average through rich examples, realize the necessity of learning average, and find the average of simple data (the result is an integer); Ask and answer simple questions according to the data in the statistical chart, and exchange your ideas with your peers; Be able to list all possible results of simple tests; Know the possibility of an event; Describe the possibility of some simple events and communicate with peers.
Seven. practical activity
Besides the arrangement of this textbook? Mathematics in forest tourism? And then what? Math in physical education class? In addition to the three main practical activities, the following practical activities are provided in the text or exercise:
1. Go to the store to investigate the prices of three commodities and make records.
2. Find the decimals in your life and talk to your partner.
3. Investigate and record the water and electricity costs of your home for two months. Talk to your partner about your feelings by analyzing the data.
4. Collect some symmetrical figures, patterns and photos to show in the class.
5. Cut out a favorite figure with paper, and draw the pattern by symmetry, translation or rotation.
6. Design a travel plan.
7. Design scheme of kitchen floor tile.
8. Make a jigsaw puzzle.
9. Investigate the heights of you and your classmates and calculate the average height of your group.
10. Find out the information related to the average in the newspaper and communicate with peers.
After a series of practical activities such as observation, operation, production, investigation and reasoning, I gained a good emotional experience in the process of cooperation and communication. Get and accumulate more preliminary experience in mathematics activities, and be able to use the knowledge and methods learned to solve simple problems; Feel the role of mathematics in daily life.
Third, introduce the relevant requirements of this major.
Question 1: What preparations should I make before class? How to manage books?
(1) school supplies
1. Prepare school supplies before class and put them in the upper left corner. (Arrange inspection team leader)
2, books should be wrapped, not graffiti, graffiti, graffiti.
3. Use the same color pen for homework.
Question 2: What disciplines should we pay attention to in class? What discipline should I pay attention to in the teacher's office?
Study discipline
1. Sit up straight and don't make small moves (cautiously)
2. Speak positively, with a loud voice and complete expression.
3. The teacher looks at him when he speaks and at the blackboard when he writes.
Go back to your seat immediately after the bell rings and wait for the teacher to arrive.
5. Late for class or yelling in the teacher's office? Report? , get permission before entering.
6. Don't talk casually in the teacher's office. When there are more than three people in the queue, the fourth person should wait outside the office and enter after one person leaves.
7. Finish your homework independently. Discussing and consulting with classmates is equivalent to plagiarism. If you can't write it at home, you can ask your parents, and parents can't indicate the reason. You can ask your school teacher.
8. Don't do homework between classes (except review).
Question 3: What should I pay attention to when doing my homework?
(3) Operation requirements
1, indicating the time and operation contents; Finish the homework on time, in quality and as required.
2. Write one line in each box, and leave one line blank when completing a question.
3. Revisions should be rewritten, not changed in the original title; You can modify it directly in the workbook, but you need to change pens with different colors.
4. Answer the questions with a pen, with neat handwriting, and strive to be clean, tidy and not altered.
5. Write the class name in the designated place as required.
6. Connect with a ruler, draw with a pencil and ruler.
7. Modify on the same day. All pairs should be submitted directly to the group leader, and the mistakes should be corrected by the teacher before being submitted to the group leader.
8. Every homework should be checked, signed and completed by parents.
(D) the requirements of class assignments
1, finish the operation on time, with good quality and as required.
Before you do your homework, write the number of times in the first line, the day of the week in the second line, and then start your homework from the third line.
3. Write carefully and neatly, strive to be clean and tidy, and do not alter.
4. Write one line in each box, and leave one line blank when completing a question.
5. Correct mistakes in time that day and form a good habit of checking.
6. Write your homework with only one marker.
7. Students who ask for leave should make up their homework immediately after they arrive at school and hand it in in in time.
Fourth, listen to the story to understand the truth and introduce the learning method of mathematics.
An old man is fishing by the river. A child walked by to watch him go fishing. The old man is very skilled, so he soon caught a basket full of fish. The old man thinks the child is cute and wants to give him the whole basket of fish. The child shook his head. The old man asked you in surprise why you didn't want it.
The child replied:? I want the fishing rod in your hand. ?
The old man asked? What do you need a fishing rod for?
The child said:? It didn't take long to finish this basket of fish. If I had a fishing rod, I could fish by myself and never finish fishing. ?
Do you think this child is very clever?
So the important thing is fishing skills. Just like our study, we can't just remember the knowledge, what's more important is to master the methods and form the ability. The following teacher Wang will introduce some math learning methods for everyone:
1. Keep a good attitude: when you encounter setbacks and difficulties in your study, don't back down or complain. I believe I will get better gradually.
2. Learn to arrange your time reasonably. We must actively use some spare time to recall knowledge. If you are wrong or don't know, read the textbook.
3, math preview can not be less. The reason why mathematics is not understood is that the knowledge learned before the new lesson has not been understood or the old knowledge has been forgotten. Preview can prepare lessons, so that students can take the initiative to attend classes with questions.
4. Pay attention to the class. Only by focusing can people enter the best learning state.
A: We should correct the attitude of classroom learning and enter the learning state as soon as possible.
(1) Think more, thinking is the core of mathematics learning methods.
(2) Do more work to help groups learn knowledge and use knowledge to achieve mastery.
(3) To cultivate creative spirit, the so-called creation means to come up with new methods, which should not be limited to the methods taught by teachers and textbooks. Usually, there are some thorny problems. After I understand the method taught by the teacher, I have to find out whether there are other solutions, so as to deepen my understanding of the problem.
B: Ask and answer questions actively, and strive for the opportunity to answer them. The more you answer, the greater your interest in learning.
(1) Review in time after class. What you learn in class will be forgotten after class, sometimes soon. Therefore, only by reviewing in time can we reduce forgetting and consolidate what we have learned. The method of review is to read the textbook first, then do exercises, and after finishing the homework, summarize the knowledge points and methods.
(2) Choose a math reference book that suits you: On the basis of mastering the teaching materials, carefully study a reference book, no more or less, choose one that suits you, and study it carefully with the progress of learning.
(3) weekend review is very important: at the weekend, we should summarize and review the learning content of the week.
Verb (abbreviation of verb) class summary
The third grade is the key period for us to learn math well. Students with good grades should not be complacent, and students with poor grades should not be discouraged. Starting today, this will be a new beginning for us to learn mathematics. Every point depends on our future efforts. Whoever is the most serious is the new top math student in our class. If you don't work hard, you won't give strength all your life! New semester, new journey. May we be happy, progress and harvest every day in the warm and happy family of Class One, Grade Three, Primary School!