Different stages have different specifications, and the design of the blackboard shall meet the following requirements:
The size and height of the blackboard should not be less than1000 mm. The width should not be less than 3600 mm in primary schools and 4000 mm in secondary schools. The vertical distance between the lower edge of the blackboard and the platform should be 800 to 900 mm in primary schools and 1000 to1000 mm in secondary schools.
Characteristics of various teaching blackboards
The green board is dark green, written with chalk, which does not irritate people's eyes and is beneficial to protecting their eyesight; The surface of the whiteboard is white, and all kinds of water-based colored pens are used to write.
The color-coated steel plate is made of high-quality alloy steel plate coated with wear-resistant coating, with a thickness of 0.3mm-0.4mm, which is wear-resistant, non-shedding, non-fading and durable. Good writing feel, clear handwriting, easy to write, easy to wipe and easy to try, less dust.