I. Teaching background
1, for students: primary school √ 2, subject: mathematics.
3. Class hours: 1 class hours
4. Preparation before class:
The teaching of Understanding of 10 is the first volume of compulsory education curriculum standard experimental textbook (PEP). Knowing the number within 10 is one of the most basic knowledge for primary school students to learn mathematics. It is of great significance to lay a good foundation for students at this stage to study mathematics in the future.
Second, the teaching theme
In education:
Guide students to feel the close connection between the number 10 and real life.
Teaching:
1, guide students to experience the process of understanding 10, and initially establish the number sense of 10.
2. Learn how to count, read and compare the size, composition and writing of 10, and fully understand and master the concept of 10.
Development:
Cultivate students' practical ability, observation ability and preliminary mathematical communication consciousness
Third, teaching material analysis:
⑴ Content analysis: The textbook first abstracts the number10 by counting the people and things in the theme painting; Then, get a preliminary understanding of the print number10; Then we can understand the cardinal meaning of 10 through practical operations such as putting red flowers and picking pearls, and then we can understand the numerical order within 10 through activities such as recognizing rulers and counting points. On this basis, students should master the composition of 10 by holding hands; Finally, the number 10 was arranged. This arrangement from concrete to abstract strengthens the cultivation of students' operational ability, which accords with the characteristics of junior students' strong thinking in images, weak abstract thinking and easy distraction. Because students have certain learning foundation and experience, it is not difficult to learn. Students can write each number correctly and normally, which lays a good foundation for learning multi-digit writing in the future and directly affects the quality of written expression in the future. However, it is difficult for children who have just entered school to master the structure and stroke order of mathematics, their fingers are not flexible enough, their turns are not smooth enough, and it is difficult to write neatly and symmetrically. The composition of 10 is the basis of 10 addition and subtraction and addition within 20, so the focus of this class should be to master the writing and composition of 10 correctly and skillfully, which is also the teaching difficulty of this class. The key of teaching is to let students discover and acquire knowledge in the teaching activities of speech practice.
⑵ Analysis of learning situation: The first-grade primary school students are only 6 or 7 years old. They are naive and lively, mainly thinking in images. They can identify the characteristics of objects, provide children's interesting teaching activities for students, attract students to take the initiative to participate, and help students experience, understand, explore, learn and use mathematics through observation, comparison and operation.
(3) Teaching situation analysis:
I have worked for 12 years, and I have been exposed to both old and new textbooks. Have a delicate overall grasp of the knowledge points of the textbook and a profound understanding of students' understanding of knowledge. In classroom teaching, I can fully mobilize the enthusiasm of students and give full play to their main role.
(4) Teaching objectives:
1, guide students to experience the process of understanding 10, and initially establish the number sense of 10.
2. Learn how to count, read and compare the size, composition and writing of 10, and fully understand and master the concept of 10.
3. Cultivate students' practical ability, observation ability and preliminary mathematical communication consciousness.
4. Guide students to feel the close connection between the number 10 and real life.
(5) Emphasis and difficulty of teaching:
10 and 10.
Mastering the writing and composition of 10 correctly and skillfully.
Teaching time: 1 class hour
(7) Teaching methods and learning methods:
1. Teaching methods:
According to the actual teaching situation, teaching methods such as intuitive demonstration, practical operation, trying teaching method and combining teaching with practice are adopted.
2. study law:
The quality education advocated today is student-centered education. Teachers should not only let students learn, but also let them learn, following the principle of "all students develop" in zankov. Combining the characteristics of teaching materials and students, I use cards, ideas and learning tools to guide students to think through migration, observation, comparison, analysis, synthesis and association in practice, so as to remember and master knowledge according to certain rules and make students learn.
Fourth, the teaching process:
First, review the old knowledge and doubt the entry.
1, review the numbers (from 0 to 9, from 9 to 0).
2. The number "10" is taken from the dial bead.
Q: How many beads did the teacher dial first? (9) How many more beads did you dial? (1), how many beads did a * * * dial? What is 9 plus 1? (that is, 10), today we will learn the number 10 (the understanding of the blackboard subject 10).
Second, explore new knowledge and master new knowledge.
1, energy quantity 10.
People and events in thematic map (1). First, the teacher shows the P64 theme map, so that students can count the people and things in the map. Then combine pictures to educate students about world peace and national unity.
(2) Count the thoughts outside the screen.
Teacher: 10 pigeons and 10 people can represent 10, so can points represent 10? Please count, how many ideas are there?
2. Understand the cardinal meaning of 10.
(1) First, guide students to understand the printing of 10.
(2) Put out 10 and leave 10 beads.
(3) Ask students to say a word at 10.
(4) Find out what 10 stands for. (10 fingers, 10 toes)
3. Master the numerical order within 10.
(1) Know the numerical order within 10.
A, observe the counter and dial the beads.
Teacher: Please look at the counter carefully and see how the teacher dials the beads. How many beads (9), dial 1? One * * *, how many? What is 9 plus 1? There are 10 pieces here now. Remove 1 block, how many blocks are left? 10 minus 1 What do you get? (9). How to express 10 in the ruler diagram? Please look at the ruler chart:
B, then show the ruler chart, guide students to observe, and let students understand the ordinal meaning of 10.
C. Play palm games and consolidate the numerical order within 10.
(2) Grasp the size of each number within 10.
A, first: count the points and know the ratio of 9 to 10, which is bigger and which is smaller? Then move the position of the switch point diagram, and grasp that 10 is larger than 9, which is smaller?
B, let students try to fill in the size comparison between 9 and 10, 10 and 9.
C. What other numbers will inspire students to think about the problem less than 10?
4. Writing and composition of10.
How to write (1) 10?
A, the teacher first demonstrates writing the number 10.
B, then let the students draw red, and finally let the students copy. (The teacher teaches 10' s writing first, and then teaches 10' s composition. This arrangement is beneficial to writing on the blackboard.).
(2) Composition of10.
First, grasp the composition of 10 by hands.
Ask students to randomly divide 10 sticks into two groups and collect five different arrangements and blackboard writing, such as:
10 10 10 10 10
/\ /\ /\ /\ /\
9 1 8 2 7 3 6 4 5 5
Then he asked, "what else can you see when you see each group above?" Thus arousing students' thinking association. Finally, let the students look for the collocation rules of the above nine points, and point out that remembering according to certain rules will make them remember quickly and firmly. It can be said that it not only gives students knowledge but also teaches them memory methods.
B, consolidate the composition of 10.
Do exercises (password, clap your hands).
Teacher: Let's relax and play the game of correct password. I said 1, you said 9, 1 plus 9 equals 10. ...
Play between teachers and students first, then between students, and hold up the digital card while playing.
The composition of senior five is 10: teachers shoot first, students shoot later, and the number of shots should be 10.
Third, consolidate practice and deepen new knowledge.
1. Complete P65 and complete (connect).
2. Complete the first question of P67 Exercise 9 (Fill in the book).
3. Complete the second question in P67 Exercise 9.
This is the scene where the launch pad commander counts from 10 to 1 and releases the rocket. Can you be a little commander and demonstrate? (Ask a classmate to perform) Get ready! Let's go 10,9,8,7。 . . . . Fuoco! His successful launch will bring great help to our lives. Our children should study hard from an early age and make more contributions to the motherland when they grow up.
4. Complete the third question of P67 Exercise 9 (let the students finish it independently and revise it collectively).
5. Fun exercises (playing games with friends).
Now let's play the game of finding friends. Ask my good friend "10" to come out and stand here. Note that the numbers on the two cards make up 10, and they are good friends. (Where is my friend and your friend is here), did you find the right one? The number of these good friends is five, so they are twins, standing together. Is there a problem with the number sequence on the card? You can arrange a row in the order from small to large, and the whole class can read it once. How to read from big to small? What's behind 9? What is in front of 10? Compare the sizes of 10 and 9, and 9 < 10 10 > 9 puts down the card and lets the 10 classmate raise the card, right? Would you please 10 raise your card? 10 is different from 10. These students are doing very well. Give them some applause. Thank you!
6. Learn children's songs
Fourth, summarize in class and expand knowledge.
1. What did you learn in this class?
Please tell your parents what you have learned with satisfaction.
Please use your imagination to create beautiful patterns with 10 sticks.
Five, the blackboard design
Understanding of 10
10 10 10 10 10
9< 10 /\ /\ /\ /\ /\
10>9 9 1 8 2 7 3 6 4 5 5
Sixth, teaching reflection.
It is clearly pointed out in the standard that "mathematics teaching is the teaching of mathematics activities." Modern educational theory advocates that students "do" mathematics with their hands instead of "listening" mathematics with their ears. Therefore, teaching should leave enough time and space for students, so that every student has the opportunity to participate in activities, so that students can learn by doing, think by doing and do by thinking, and explore and innovate in the process of doing and thinking. In addition, the first-year students are young and have little life experience. Choosing what children are most familiar with is easy to arouse students' interest in learning and easy to understand and accept. Therefore, "mathematics teaching should be closely linked with students' real life, starting from students' life experience and existing knowledge", and learning, understanding and developing mathematics in the activities of studying practical problems. 10 is a special number, which is both the result and the unit of counting. In the calculation, 10 is used for carry and abdication, so this lesson is arranged separately. Judging from my actual teaching, I have basically reached the original teaching concept, and what I have learned deeply in the whole teaching process is:
1, experiential teaching, so that students can learn while playing.
After entering the new teaching part, I make full use of experiential teaching methods to let children find 10, swing 10, dial 10, guess, change the password, clap their hands and so on, so that students can master new knowledge and practice in a relaxed and happy atmosphere, making learning a pleasant activity and firmly attracting students.
2. Pay attention to the connection between teaching and students' life.
Modern educational theory holds that mathematics is concrete, vivid and full of vitality only if it is closely combined with real life. In the whole class, we always carry out activities in every link according to students' existing knowledge. Experiential mathematics comes from life, is used in life, and always exists in our life. So we design to find 10 in our lives and 10 in our bodies. Let the mathematics classroom become independent, informative and active, and at the same time reflect its life.
3. Pay attention to cultivate students' orderly thinking.
When teaching the composition of numbers, students are urged to think deeply and find the composition law of 10, so that the law of knowledge can be vividly displayed in their minds, so as to grasp the law of things and obtain the method of studying the law of things.
4. Cultivate students' sense of numbers through various channels.
In teaching, teachers provide students with rich information resources, such as pigeons and characters in theme maps; Children in the classroom; Sticks in the school box; Beads, bitmap, ruler, etc on the counter. Let students realize that numbers are counted by the specific number of objects or things. Pay attention to let students go through the process of recognizing numbers instead of simply reading and writing numbers, such as dialing numbers on a counter, observing the order of numbers with a ruler, and counting 10 sticks in different ways. These are all helping students to establish the concept of numbers and develop their sense of numbers.
5. shortcomings.
When students understand the numerical order within 10 in cooperative communication, they can count backwards. I didn't ask the students to set the 10 post by themselves. Tie them into a bundle and let the students know that "10 one can make up 1 10." When dealing with this problem, I feel that I have not done enough, ignoring the teaching that 10 is still a counting unit.