Teachers use multimedia information technology to creatively design teaching activities, and combine the characteristics of information technology and mathematics teaching to make the expression of teaching more visual, diversified and visual, which is conducive to revealing the formation and development of mathematical concepts. Show the formation process of mathematical thinking, and achieve the effect of getting twice the result with half the effort. Now in recent years, teaching practice, how to use multimedia in the primary school mathematics classroom for teaching.
1. Adjust student emotions and stimulate interest in learning. "Curious" is the nature of students. It uses the characteristics of multimedia graphics, dynamic changes, and visual intuition to create various situations for students, mobilize students' strong desire to learn, and stimulate engines and interests. As mentioned above, "How many percent of a number is a number, ask for this number", use the advantages of multimedia to convert the quantitative relationship into a line segment diagram, highlighting through "discoloration", "flashing", "moving" and other means. The equivalent relationship between the percentage and the corresponding amount, 20% is 6 kg, 100% is how many kilograms, and abstraction is specific to help students understand.
2. Create a situation, reproduce the process of knowledge discovery, and improve learning efficiency. In mathematics teaching, using multimedia teaching, students can create rich and colorful teaching situations, add doubts, set suspense, reproduce the process of knowledge discovery, stimulate students' desire to acquire knowledge, fully mobilize students' enthusiasm for learning, and make students passive. Receive knowledge to active learning, actively cooperate with classroom teaching, and actively participate in the teaching process, thereby improving learning efficiency.
3. Highlight key points, break through difficulties, and help students acquire skills and experience. Multimedia teaching can make the abstract concept concrete and visualized. In particular, multimedia can be used for dynamic presentation, which makes up for the shortcomings of traditional teaching methods in terms of intuitiveness, three-dimensionality and dynamic sense. This feature can be used to deal with other teaching methods that are difficult to handle. The problem can arouse students' interest and enhance their intuitive impression. This provides a modern teaching method for teachers to highlight key points, break through difficulties and improve classroom efficiency. For example, when introducing the teaching of "Cognition of the Circle", let the students talk about the round things in life, and then ask the students which parts of the objects are round. After the students say, they will display these objects in multimedia and click the mouse to Each object becomes a circle of different size by rotation or front perspective, allowing the student to immediately establish a circular representation. In the formation of the learning circle, the set of points on the plane to the fixed point is equal to the fixed length. The concept of the circle is very difficult to understand. I will show the animation in time: a sheep is tied with a rope on the neck. On the top, and running around the stakes to return to the starting point, the traces left by the sheep on the grass are a closed curve, that is, a circle, which visually shows the formation process of the circle, and the students will never forget.
In short, multimedia entering the classroom is an inevitable trend of primary school mathematics reform and development. Only scientific and rational use can make it play its due role in the teaching process, so as to achieve the purpose of optimizing classroom teaching structure and improving teaching quality.
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