The  electronic whiteboard  has powerful functions. If teachers are skilled, they can use rich teaching resources at will, visualize and visualize the abstract teaching content, and change all kinds of knowledge from static indoctrination to dynamic communication with pictures, sound and images, so as to attract students' attention, optimize classroom teaching, and improve teaching quality.

Using electronic whiteboard to optimize "decimal" Teaching

1. Use electronic whiteboard to change the way of classroom teaching.

The traditional teaching introduction method is plain and empty, which is difficult to arouse students' interest and desire to explore. With the help of information technology, this situation will change. For example, in the lesson "understanding perimeter", students are very unfamiliar with the concept of "perimeter". If they tell children what perimeter is as soon as class begins, they will not understand it. If they download an animation courseware first and let them watch the situation of three insects climbing leaves, this will not only attract their attention, but also pave the way for the teaching of the concept of perimeter. This not only enables students to do a "warm-up exercise", but also effectively paves the way for the teaching of new courses.

2. The reasonable use of electronic whiteboard makes the classroom full of flavor

I remember Mr. Ye Shengtao once said: textbooks are nothing more than an example. The lesson "abacus" on decimal four only occupies one page in the textbook of people's education press. If we make rational use of information technology and resources, our classroom teaching will be enriched. At the beginning of this lesson, let the students guess a riddle about the abacus, and then write the word "abacus" with a brush to conduct a "word search" to understand the abacus knowledge. Then, let the students watch a video to learn about all kinds of abacus. Finally, open a courseware for students to operate and have a deep understanding of the abacus.

3. Use electronic whiteboard to optimize the teaching process.

In primary school mathematics teaching, the electronic whiteboard should be properly integrated into the subject teaching, and the humanistic scene of teaching should be created with specific images, pictures and audio-visual images, so that the abstract teaching can be concretized and clarified. Students actively participate in teaching activities, which helps students to give play to their learning initiative, so that teachers focus on teaching and students focus on learning, so as to optimize the teaching process and improve the teaching quality.

4. Use electronic whiteboard to improve classroom teaching evaluation.

The traditional teaching evaluation method for students is relatively simple, mainly teachers' evaluation of students, which is monotonous, not rich, and sometimes not timely. Some resources carry evaluation and will give evaluation to students in time. For example, in the interactive exercise in the lesson "classification of triangles", when students operate correctly, music will be played automatically, and when students answer incorrectly, comments such as "work hard..." will be played.

The advantages of electronic whiteboard in primary school mathematics classroom teaching are obvious, but it can not completely deny the advantages of traditional media. Only by organically combining with traditional media and complementing their advantages, can we promote the overall optimization of teaching.