There used to be a blackboard in the classroom, why should it be changed to a green one now?

There are several reasons for changing the traditional blackboard into a green board in the classroom:

1. Vision protection: The traditional blackboard uses chalk, which will produce a lot of dust and affect the respiratory system of teachers and students. The green board uses dust-free chalk or electronic writing board, which will not produce dust, is more environmentally friendly and is more conducive to protecting the health of teachers and students.

2. Improve the teaching effect: colorful green boards can attract students' attention, make the teaching content more vivid and interesting, and improve the teaching effect. At the same time, the green board is less irritating to the eyes and will not feel tired after long-term use.

3. Convenient cleaning: The traditional blackboard needs to be wiped with a wet cloth, which is easy to leave traces, and noise will be generated during the wiping process, which will affect teaching. The green board can be wiped with dry cloth or wet cloth, which is convenient to clean and will not leave traces.

4. Save space: The traditional blackboard occupies most of the classroom space, while the green board can be hung on the wall to save space and make the classroom look more spacious and bright.

5. Environmental protection: The green board is made of environmentally friendly materials, which will not pollute the environment. Besides, green is the color of nature. Using green board can make students better contact with nature and cultivate their awareness of environmental protection.

Generally speaking, changing the blackboard in the classroom into a green board is out of consideration for the health of students and teachers, and also to improve the teaching effect and quality.