A blackboard is a large flat surface, finished with black slate or a similar material, which can be written upon with chalk and subsequently erased.
1. Eye to eye contact is lost while writing. 2. The written material cannot be stored and reused. 3. Advance preparation of material is not possible.
Victorian classrooms typically had wooden desks in rows, a blackboard for the teacher, and basic teaching materials like textbooks, slates, and chalk. The classroom would also have a strict discipline system, enforced by the teacher, and subjects taught included reading, writing, arithmetic, and religion.
Blackboard Inc. was created in 1997.
The population of Blackboard Inc. is 1,780.
advantages and disadvantages of blackboard
The duration of Murder on the Blackboard is 1.18 hours.
The duration of Beyond the Blackboard is 1.67 hours.
Beyond the Blackboard was created on 2011-04-24.
Meter is used in finding the width of the blackboard.
Go to google and type in your state and blackboard and it should come up.
There is more than one size of blackboard...
"Blackboard" in Chinese is 黑板 (Hēi băn)
Blackboard can be any shape you want. Most blackboards are rectangular.
The surface area depends on the height and width of the blackboard.