Comprehensive processing of text, sound, image, animation, etc. by using information technology. And its powerful interactive characteristics can fully create a vivid and vivid teaching environment, provide an image expression tool for the smooth implementation of teachers' teaching, effectively reduce students' academic burden, stimulate their interest in learning, truly change the monotonous mode of traditional education, and let music learning be implemented. The emergence of information technology provides us with new opportunities to improve teaching methods and produces immeasurable teaching results. Let's talk about the positive application of information technology in primary school mathematics teaching with several specific teaching examples.
The extensive application of information technology in primary school mathematics teaching can be summarized as follows:
First, create a situation
Creating situations means that teachers grasp the key of students' thinking activities according to their actual age characteristics, knowledge and experience, ability level, cognitive rules and other factors, and provide students with rich background materials in the cognitive "nearest development zone", starting with objects and examples that students like to see, and creating vivid and interesting learning situations in the form of animation demonstrations, stories and games to stimulate students' interest in learning mathematics. With its unique attraction, information technology can easily realize situational teaching through words, images, sounds, animations and other forms. This is beyond the traditional teaching of a piece of chalk, a blackboard, a wall chart and a model at most.
For example, in the process of teaching conference problems, I made a courseware with Flash. At the beginning of the courseware, I created such a situation: Sharla Cheung and Li Hua are good friends, and they live in two adjacent villages respectively. One day, Zhang Ming wanted to give something to Li Hua as soon as possible. What should they do? The story-telling plot and vivid characters arouse students' interest in learning. The students expressed their opinions and put forward different plans. I used the powerful interactive function of CAI courseware to demonstrate various situations respectively. During the demonstration, students' interest was high, which effectively broke through the difficulty of "moving in opposite directions" and laid a good foundation for the follow-up teaching. The application of information technology not only successfully introduced the new curriculum and optimized the teaching process, but also improved students' interest in learning and stimulated their thirst for knowledge.
Second, the demonstration experiment
The new curriculum standard emphasizes that students should experience the forming process of knowledge and know not only why, but also why. However, in primary school mathematics teaching, there are many contents that can not be observed by students through normal demonstrations, nor can they be operated through students' experiments, which affects the teaching effect. The application of information technology can overcome the above shortcomings to a great extent and improve teaching quality and efficiency.
For example, when I was teaching the course "The circumference of a circle", I made a demonstration courseware with Authorware to understand that "the length of a circle surrounded by a curve is called the circumference of a circle" and "the circumference of a circle is more than three times the diameter". First, three brightly colored circles with different diameters appear in the courseware, then a brightly colored point flashes on the circumference as the starting point, and then the three circles roll at the same time to get three different lengths. In this way, students can easily sum up the definition of perimeter, which is impressive. Then let the students guess the relationship between the length and diameter of a circle, and then verify that the circumference of the circle can be measured by diameter. Three circles, three demonstrations, students will naturally understand the law that the circumference of a circle is more than three times its diameter. In this way, students can easily master this knowledge point and effectively break through the difficulties in teaching.
Third, hierarchical teaching.
The new curriculum standard emphasizes respecting students' dominant position, acknowledging the differences among students, and advocates that students at different levels can get different degrees of development and feel the joy of learning success. This kind of humanized teaching is difficult to realize under certain conditions. Today, information technology provides us with a colorful interactive learning environment. Students can choose what they want to learn and exercises suitable for their own level according to their own learning basis and interests, which makes it possible for students to actively participate in learning, creates good conditions for students to play their initiative and enthusiasm, and makes students truly become the masters of learning.
For example, in the teaching of "General Review of Fractional Application Questions" in Grade 6, I made a courseware with Prontpage, in which four modules were designed for students to choose when actively exploring new knowledge. In front of the computer, students feel that they are the masters of learning, without strangeness and bondage. They can choose the content they are interested in and suitable for their own level to practice according to their own wishes. Every time a student passes a level of practice, the background server will make a judgment in time and give rewards in the form of pictures, words and animations, thus breaking the situation of "rushing to March" and fully developing the abilities of students of different levels.
Fourth, film and television broadcasting.
Using the camera and audio-visual functions of information technology, we can collect relevant publicity materials, publicize relevant reading materials in various chapters, especially the life experiences and scientific research achievements of mathematical scientists, fully stimulate students' scientific enthusiasm, and further enhance their self-confidence and national pride.
Take the lesson "Circle" as an example. After learning Pi, this lesson will introduce Zu Chongzhi, a great mathematician and astronomer in China. There is a special introduction in the textbook. I made a simple courseware for this introduction with Powerpoint. Information technology organically combines images, sounds and words, and the effect is remarkable. Students receive a good education, which is incomparable to traditional reading and reading.
Information technology has great attraction because of its characteristics of audio-visual combination and hand-eye combination, as well as the inherent attraction of simulation, feedback, individual guidance and games. As a teacher, we should not only master this new teaching method skillfully, but also accurately understand the fundamental purpose of teaching this subject, understand the advantages and limitations of traditional teaching methods, and finally carry out teaching activities better with the support of information technology.