Math, asked by rudratejamoyya3364, 1 year ago

What is black board in school????

Answers

Answered by snehitha2
0
Hi friend!!

» Blackboard is a board which is a smooth dark surface attached to wall, used for teaching classes like teachers explain on board by writing with a chalk piece.

» Blackboard is usually in black colour.

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Answered by krystal2
0
The black is a black object made up cement in which teacher use to write with a chalk...nowadays these blackword have been replaced by white boards
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