The width of the blackboard is about 16 decimeter, right?

The width of the blackboard is about 16 decimeter, which is correct.

Blackboard is one of the necessary teaching tools in the classroom. Common types of teaching blackboards include traditional blackboards, color-coated steel blackboards, new material composite blackboards, support movable blackboards, magnetic blackboards, interactive electronic whiteboards, glass blackboards, staff music blackboards and so on. Different blackboards have different characteristics, for example, the movable blackboard with bracket is easy to move, and the interactive electronic whiteboard can make use of modern teaching technology.

The size of the classroom blackboard is generally related to the length and width of the classroom, and there are requirements in both height and width. Usually the blackboard in the classroom is 35 decimeters long and 16 decimeters wide.

Types and characteristics of teaching blackboard

1, traditional blackboard. The traditional blackboard is dark green and written with chalk, which does not irritate people's eyes and is beneficial to protecting their eyesight. It is also the most common blackboard in the past.

2. Color coated steel blackboard. It is made of high-quality alloy steel plate coated with wear-resistant coating, the thickness of which is mostly 0.3mm-0.4mm, which is wear-resistant, non-shedding, non-fading and durable. The book feels good, the handwriting is clear, easy to write, easy to wipe, and less dust. 20 15 China is promoting the balanced development of education in an all-round way, and schools are gradually promoting the use of painted boards for teaching, which is also commonly known as rice white boards or beige boards.

3. New material composite blackboard. Made of polymer alloy particles and epoxy resin, the surface is pressed at one time without any treatment. With a thickness of 3mm, the writing is smooth, clear and permanent. Service life is greater than 15 years. The flat plate is flat and smooth, and the curved panel is bent to prevent reflection, so that students sitting in every corner can see the handwriting on the blackboard clearly. Suitable for larger classrooms.

4. Support the movable blackboard. The blackboard is equipped with various supports, which is convenient to move and widely used. The lifting plate of the push-pull plate can move in multiple directions along a specific track, which is convenient for writing and viewing.

5. Magnetic blackboard. Magnetic strips and bars are arranged inside the blackboard, or magnetic particles are attached to the surface. When in use, small teaching tools or pictures can be fixed by magnetic nails, magnetic blocks and the like.