First of all, the significance and practical effect of applying multimedia teaching in teaching. (A), clever use of multimedia can stimulate interest.
Interest is the best teacher. Without interest, students will be reluctant to participate in activities. Children's interest in learning plays a decisive role in stimulating children's learning motivation and mobilizing their learning enthusiasm. Once children's interest in learning is stimulated, their spirit of exploration and thirst for knowledge can be stimulated. Computer integrates text, graphics, audio, video and other media, giving students a refreshing feeling and making the content more substantial, vivid and attractive. Make abstract teaching content concrete and clear, make students active in thinking, participate in teaching activities with interest, make students pay attention to practical operation, scientifically memorize knowledge, help students play their initiative in learning and think positively, thus improving teaching quality, optimizing teaching process and enhancing teaching effect. Mathematics teachers should study how to use modern information technology to help their own teaching from the perspective of their own subjects, and integrate modern information technology into the subject teaching in primary schools-just like using blackboards, chalk, paper and pens.
(2) The clever use of multimedia can change the static state.
In classroom teaching, the media is the carrier of teaching information and the tool and means to transmit information. Its function is not only to convey the teaching content, but also to change the traditional teaching methods and learning methods, adjust the classroom atmosphere, create situations and stimulate students' interest. Mathematics is highly abstract and is called "gymnastics of thinking", especially for primary school students. In addition, primary school students' self-control ability is poor and their attention is easily distracted. Multimedia, with its strong interest, diverse colors and pleasant music, provides students with a vivid, intuitive and rich teaching environment that integrates sound, image and color, and combines static and dynamic, making silent teaching materials vivid and colorful. Therefore, in the teaching process, teachers can fully stimulate students' senses, arouse their enthusiasm, always attract students' attention and generate strong interest, and interest is the best teacher, thus changing "hard study" into "happy study" and "want me to learn" into "I want to learn", so that students can naturally integrate into the state of positive thinking. For example, when teaching the three concepts of "straight line, line segment and ray", teachers can design movable and static courseware to let students acquire knowledge actively and vividly. First, project a curved rubber band on the screen, then tighten it to straighten the curve, emphasizing that the straight line is "straight", and then extend the straightened rubber band outward to show the dynamic process of "extending" until it is not displayed on the screen, so as to explain that the straight line is "infinitely long", and then let students get the understanding that "the straight line has no points and can extend to both sides indefinitely". When teaching ray, one end can be straightened and the other end can not be moved, so that students can get the understanding that "there are endpoints and one end extends indefinitely". However, when teaching "line segment", only the bent rubber band is straightened, so the demonstration cannot be extended. In this way, students can demonstrate easily confused static concepts through media images, and can understand concepts more accurately and deeply.
(3) Using multimedia skillfully can highlight key points and break through difficulties.
As a teacher, it is important to teach him to "fish". The key in the process of mathematics teaching is to let students master the formation process of knowledge and let them know what it is and why. Using multimedia computer, through vivid demonstration, students' hands-on operation and teacher's explanation, students' vision, hearing and touch are mobilized, and observation and thinking are combined, which is helpful to highlight teaching key points, break through teaching difficulties, deepen understanding and improve classroom teaching effect.
Second, the problems that should be paid attention to in the application of multimedia teaching.
(A) follow the cognitive law, pay attention to the cultivation of students' ability. In multimedia-assisted teaching, teachers personally use multimedia courseware, from introduction to playing, from re-teaching to practice, from concept to law, all of which are projected on the screen. Students watch, listen and think less. Too much emphasis on external stimuli does not leave enough space for students to think independently, and students have little effect, let alone cultivate their ability. It should be clear that multimedia teaching should also follow the cognitive law, pay attention to the cultivation of students' ability, make students become the main body of learning, reflect students' way of thinking, let students learn new knowledge under the guidance of courseware, build their own knowledge system, and form their own way of thinking and problem-solving ability. Teachers should not only pay attention to the reform of teaching methods, but ignore the study of learning process and teaching process, in case of "wearing new shoes and taking the old road"
(2) Multimedia technology is only an auxiliary means of teaching and cannot completely replace the teacher's explanation. Multimedia-assisted teaching is to help teachers solve the key and difficult problems in teaching, and it is also an auxiliary means for teachers to carry out classroom teaching. It is not necessary to use it in every class, but it is suitable for teaching content that is difficult to explain clearly by traditional teaching methods. In class, multimedia is just a tool, just like blackboard and chalk, but it is more modern. Therefore, teachers should not rely entirely on multimedia when giving lectures, and should not turn the classroom into courseware display. Therefore, when using multimedia-assisted teaching, teachers should not only work hard on the courseware to make it meet the requirements of this class as much as possible, but also work hard on the basic teaching skills to improve teachers' teaching level and really make multimedia courseware play a icing on the cake.
(C) the use of multimedia-assisted teaching in the teaching process can not ignore students' sense of participation.
The fundamental purpose of using multimedia computer-aided teaching is to provide students with a more ideal learning environment, so that students can actively carry out learning activities in this carefully created environment. Therefore, we can't cover up or replace students' thinking activities with multimedia demonstrations; Nor can we blindly pursue images and intuition, thus weakening the cultivation of students' abstract thinking ability; It is even more difficult to cover everything, and "speak the whole" deprives students of their thinking space and imagination.
In short, as a modern teaching method, we should strive to find the combination of multimedia-assisted teaching and traditional teaching, and combine multimedia-assisted teaching with traditional teaching perfectly. Only by giving full play to its modern characteristics can we get twice the result with half the effort.