First, the necessity of integrating information technology into junior high school mathematics teaching
The integration of information technology and mathematics classroom teaching makes the situation reappear in front of students without the limitation of time and space. It integrates pictures, sounds and so on. The combination of dynamic demonstration and static pictures can effectively mobilize students' multiple senses to participate in learning activities and improve their interest in learning. Using the visual dynamic demonstration function of computer images, we can vividly present the phenomenon of things, specifically show the development process of things, vividly reveal the changing law of things, and make abstract knowledge transform into a certain material form and become vivid and vivid. In addition, teachers can explain in time and properly, making it easy, successfully breaking through the teaching difficulties, and making students understand the knowledge they have more thoroughly.
Second, how to integrate information technology into mathematics teaching can effectively help students understand abstract mathematical concepts intuitively.
In mathematics teaching, many teachers are used to replacing students' understanding with their own understanding of mathematics, ignoring students' cognitive characteristics, and often saying things that are not conducive to students' learning, such as "I don't know yet", "I know clearly" and "How can you be so stupid", which not only greatly dampened students' enthusiasm, but also caused students' learning difficulties because the cognitive obstacles were not solved. The reasons for these situations are nothing more than that the teachers do not have a deep understanding of the cognitive structure of the students they teach, overestimate the students' learning level, or that the teaching content is too abstract to give an image with words, paper and pens. The following example may enlighten you. For example, when learning the concept of function, the following definition is usually given: "Suppose there are two variables X and Y in a change process. If y has a unique value corresponding to each value of x, then x is an independent variable and y is a function of X. For this definition, it is not easy for beginners to understand "change", "uniqueness" and "correspondence", so it is the most difficult concept in junior high school.
If we arrange the following learning situations for students, the problem will become intimate and natural: draw an image of y=x with a geometric sketchpad, take any point P on the image of y=x, measure the coordinates (x, y) of the point P, then drag the position of the point P, and observe the relationship between the abscissa X and the ordinate Y of the point P. Through this activity, students realize that the essence of the function includes movement and change, and this movement and change is usually regular. In the figure, with the change of the position of point P, both the abscissa X and the ordinate Y of point P are changing. This is intuitive, revealing the essence of function definition, and students understand it much more deeply.
Third, be good at using information technology to create teaching situations and stimulate learning interest.
Because of their age characteristics, middle school students' learning depends largely on emotional factors, that is, students' interest in learning. Only people who are interested in themselves can participate, so how can we mobilize students' senses and make them interested in their learning activities? Simply speaking, reading, speaking and teaching is not conducive to mobilizing students' positive emotional factors, but it is easy to make students feel tired and depressed. The integration of information technology and teaching creates favorable conditions for students to acquire knowledge and cultivate their abilities, and students can easily get rid of the passive learning state. In traditional classroom teaching, due to the limitations of traditional teaching methods, it is difficult for teachers to provide vivid and intuitive teaching situations, so mathematics is considered by most people as a boring, boring and difficult subject to teach and learn. Comenius said: All knowledge begins with the senses. Situational teaching is a teaching method that teachers create vivid and emotional scenes or atmosphere according to teaching objectives, stimulate and attract students to learn actively, and achieve the best teaching effect. With the introduction of information technology, through various teaching information such as words, graphics, three-dimensional animation, video images and sounds, it is sometimes difficult to express the movement information of graphics and images, as well as some abstract theories and complex spatial structures completely and accurately in language, and organically combine them to create vivid and intuitive original ecological situations and bring students a brand-new learning environment and cognitive style. For example, in the lesson "Comparing the sizes of angles", let students understand that the size of an angle has nothing to do with the length of both sides of the angle, but is related to the size of both sides of the angle. Firstly, the author uses multimedia courseware to show two angles with the same size but different lengths on both sides of the angle to guide students to compare. Then, the author uses multimedia courseware to show two angles with different sizes but the same length on both sides of the angle to guide students to compare. Through practical operation, students can intuitively feel that the size of the angle is related to the size of both sides of the angle. For students, the size of an angle has nothing to do with the length of its two sides, but is related to the size of its two sides.
Fourth, handle the relationship among teachers, information technology and students.
Don't exaggerate the role of information technology, because for education and teaching, it is only a teaching method at best, and the leading role of teachers can not be ignored. The integration of information technology and teaching puts forward higher requirements for students' learning quality, higher learning awareness, stronger self-control ability and stronger independent learning ability.
In a word, the integration of information technology and junior high school mathematics teaching is a new teaching method in mathematics teaching reform, which has great attraction. As junior high school mathematics educators, we must correctly understand the characteristics of information technology's integration into mathematics classroom teaching, treat the prospects brought by information technology to mathematics curriculum reasonably, make our education and teaching work more in line with the new curriculum standards, let students acquire mathematics knowledge easily and happily, continuously improve their mathematics literacy and develop their mathematical thinking ability.