Language is the external expression of thinking, and the development of language is closely related to the development of thinking. Cultivating students' language expression ability can promote the development of their thinking. Therefore, it is one of the important goals of mathematics classroom teaching to cultivate students' strong language expression ability so that they can express their thoughts, opinions and problems to others accurately, smoothly, reasonably and completely. So how to cultivate students' mathematical language expression ability? I think we should mainly work hard in the following aspects.
First, enhance students' self-confidence and encourage students to express themselves boldly.
In teaching, students should maintain mental health and a sense of security. Most of the students I have taken are very active, very willing to express their ideas in class, with strong performance ability and scrambling. But there are also a few students who seldom hear their own voices in class and always sit there moping. Not much more than him, and not much less than him. It's always "hard to say". It's not that they won't do or say it, but that they don't want to express it. I made a survey and found out the reason: I was nervous, afraid to express myself, or afraid that other children would laugh at me if I made a mistake. So when teaching, I attach great importance to encouraging these students. When they stood up to answer, they didn't immediately deny what they said wrong, but kindly said, "Please sit down first and listen to what other students have to say, ok?" "I didn't think clearly, nothing, keep working hard." "Well, it's so loud to answer the question!" To encourage students. In addition, encourage students to express boldly and tell their own personality. Every student is a conscious subject, and students' language must reflect their subjective consciousness and say whatever they want. Although children's words are sometimes so childish and ridiculous, let them say whatever they want. It is also necessary to educate students to learn to listen, not to laugh at students who have made mistakes, and to stop laughing at this bad phenomenon in time, so that students can understand that it is very uncivilized to laugh at others. Every child will encounter problems of one kind or another in his study, and sometimes he will make mistakes. "Learning from mistakes", every student will correct, improve, improve and perfect himself in the process of making mistakes.
Second, observe the illustrations to stimulate oral expression
Pictures are a powerful stimulus to encourage students to speak. There are many illustrations in the textbooks of all grades, which are intuitive and vivid. Especially junior high school math books, with pictures and texts, various forms and bright colors, can attract students' attention and conform to the cognitive characteristics of junior high school children. The children were inexplicably excited when they saw these illustrations. These illustrations can stimulate students' interest in observation, association and speaking, and teachers can grasp this point and guide students to observe the illustrations first, and then repeat the plot in detail in an orderly way, thus cultivating students' oral expression ability. When I was teaching the basic knowledge of addition, there was an illustration of a child playing a game. There are 1 children playing games, and two children come. How many children are there? First, I put a picture of a child playing a game on the screen, so that students can observe and try to say a word. Then it shows that there are two more children. Let the students say the second sentence. Finally, let the students put forward a math problem according to what they know. In order to cultivate students' mathematical language expression ability, I let students say one sentence first, and then let them say three sentences completely. These three sentences are spoken to each other at the same table, so as to give every student a chance to say them as much as possible. For students who can speak these three sentences, it is obviously easy to solve this problem.
Third, the words are reasonable and orderly.
Mathematical expression should also be "reasonable and orderly", requiring students to speak from beginning to end and use mathematical language completely and coherently. Only in this way can we really want to talk, can talk, can talk and speak well. Some students usually answer the question "anticlimactic". For example, Xiao Ming is a third-grade student. What is his height? Some students immediately answered "130". Question: Is it right to say "130"? Students should correct it immediately, which should be exactly 130 cm. Then lead the students to say that it can be 13 decimeter,10.3 decimeter, or10.30 cm. Finally, let the students know that the results of these expressions are consistent. For example, in the initial understanding of teaching division, I asked: divide 12 into four parts on average. How much is each part? Some students immediately answered "3". This is actually right, but from the next paragraph, we should cultivate students' rigorous mathematical language expression ability, so that students can speak clearly, completely and coherently from beginning to end, and should guide students to say: divide 12 into four parts on average, with 3 parts each.
In a word, improving students' language expression ability is not a one-off event, and the training of "speech" should run through daily mathematics classroom teaching. In classroom teaching, we should guide students to express the process and results of mathematical thinking in different ways, encourage students to express their opinions, complement each other and correct each other, so as to further help students understand and master mathematical knowledge and improve their comprehensive ability.
References:
[1] 20 12 new curriculum standard of primary school mathematics.
[2] nine-year compulsory education. Mathematics syllabus.
[3] Lv Jing. Primary school psychology. Educational science press.
[4] Zhang Chengfen. Mental health education for students. Police education press.