The new curriculum standard clearly indicates that mathematics teaching should be closely linked with practical experience. Knowledge has been developed and students' interest in learning has been stimulated. It is closely related to the environment and knowledge background to equip them with several machines to experience the teaching content. The creation of interest situation enables observation, operation, speculation, communication and reflection to gradually measure the generation, form and development of knowledge, enable them to master the necessary basic knowledge and skills, enable them to experience the teaching content more, make the original boring and abstract numbers vivid and make them get positive feelings. The creation of mathematical charm situation plays an extremely important role in teaching.

Situation diagram is beneficial to situation creation.

Because the main scene form of the theme situational picture presents the learning materials, which enriches the children's interest and practical significance, the teaching level book <> brings the theme picture of Ming's mother buying yogurt into the situation at the beginning of the class, which stimulates the enthusiasm of learning, connects the content of the teaching material with experience and builds a bridge to the world. Teachers guide and carefully observe the pictures to stimulate the enthusiasm for inquiry. The observation chart summarizes the old knowledge, such as 32, 32, 35 and 35, and gradually introduces new lessons, which not only reviews the old knowledge, but also paves the way for the new knowledge. According to my mother, the content of the textbook is reasonable and can stimulate association and creativity. The formula of buying fewer bottles of yogurt is 30+2=2+30=, and consciously guide the writing of application problems, learn knowledge, analyze problems, solve problems, use teaching materials creatively, and improve classroom teaching efficiency.

Second, the scene map explores new knowledge.

Teacher < >; Since 1-9 shows the basic knowledge of numbers, let me ask: What do you want to see about numbers in this picture? The theory of mutual inspiration is combined with the diagram of 10 related knowledge. 10 pigeon, 9 friends and 1 teacher form * * * 105 friend with red scarf 4 friend without red scarf 5 is less than 4 14 to 5 14 pigeon.

Please tell me what preparations should be made for the spring outing, such as renting a car, buying tickets and buying food ... Let me calculate first. Class 3, Class 2, 8 groups and 5 groups buy 2 bottles of water at a time. * * * I need less water, so I want to try it. I want to calculate ① * * 5x8 = 40 () and ② * * I need less water bottles.

I want to take the cable car and count 2 cars * * * I want to take 20 cars, and each ticket 10 yuan * * costs less. I'll talk and do as I say it: 10×2×20 = 400 (yuan) 10×(20×2)= 400 (yuan).

And then what?

Thirdly, the situational picture effect improves the classroom efficiency.

Teaching 10 Understanding a wonderful answer made me think: Can you choose practical questions? Say: I use pigeons to weave four pigeons to fly, four pigeons to eat, and two pigeons to stop friends. How many pigeons? Say: I use friends to make up ... two people with the same background raise their hands to observe the same perspective and praise them. In class, I will give full play to the theme map of 10, reproduction number, array, similarity, whole and part, simply seek remainder, and apply some old knowledge to add and subtract 10, and so on. I hope I can make good use of teaching materials, expand my thinking and develop my potential. In a sense, I will carefully analyze the teacher's theme situation map, and then give some inspiration according to the same situation.

Teach "two-digit plus two-digit binary addition". I show a situational picture of the welcome package price list of KFC fast food restaurant. Let each partner choose a food to eat. The recommended questions are 7+8, 5+24, 18, 18, 18+ 16. The 24+ 16 ... equation is used to ask simple questions. Let verbal reasoning focus on two digits plus two digits plus exploration. Let the pendulum swing first, tell the truth, exchange ideas, show calculations, gradually master decimal arithmetic, let people experience the form of knowledge and cultivate the ability to solve practical problems. Practicing general problems enables them to think from the perspective and position, which is conducive to cultivating innovative consciousness and improving classroom efficiency.

As the main carrier of mathematics teaching resources, the general theme situation diagram only carries knowledge and permeates mathematics ideas, and makes rational use of resources. My theme situation map uses the application of process to create and develop, which gets twice the result with half the effort.

How to make good use of the situation diagram of primary school mathematics

Please describe the problem in detail.