Best Answer

Blackboards, also known as chalkboards, were originally made from sheets of slate, a fine grained metamorphic rock derived from clay. Slate had the double advantage of being easily split into fine sheets, and having a surface just rough enough for chalk to adhere to. Quarrymen would split the sheets of slate and dress them into squares or rectangles to be mounted in classrooms.

Chalk originally was also a rock: a soft, white, porous limestone composed of calcium carbonate.

Blackboards or chalkboards were used in schoolrooms from at least the early 19th Century right down to the present, but more recently have been largely supplanted by whiteboards or dry erase boards which do not suffer from the dust problem generated by chalk. Chalkboards themselves, where still used, have not been made from slate for a long time, nor has chalk been made from limestone. Both were replaced by manufactured substitutes.

Despite the chalkboard being today pretty much obsolete, you will still hear the term "chalk talk" used when a speaker or teacher illustrates points by drawing or writing on a dry erase board or easel tablet.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How was the blackboard made?
Write your answer...
Still have questions?
magnify glass
Related questions

How do you tell if a blackboard is made of slate?

you dont

Is sidewalk chalk made out of the same things as blackboard chalk?

Yes, both sidewalk chalk and blackboard chalk are typically made of calcium sulfate. However, sidewalk chalk is often mixed with additional ingredients like pigments and binding agents to make it more durable for outdoor use.

When was Blackboard Inc. created?

Blackboard Inc. was created in 1997.

What is the population of Blackboard Inc.?

The population of Blackboard Inc. is 1,780.

What are the advantages and disadvantages of blackboard learning system?

advantages and disadvantages of blackboard

What is the duration of Murder on the Blackboard?

The duration of Murder on the Blackboard is 1.18 hours.

When was the blackboard created?

Beyond the Blackboard was created on 2011-04-24.

What you say blackboard in sanskrit?

The word for blackboard in Sanskrit is कृष्णपट्टिका (kṛṣṇapaṭṭikā).

What is the duration of Beyond the Blackboard?

The duration of Beyond the Blackboard is 1.67 hours.

What is a blackboard?

A blackboard is a smooth, dark surface typically made of slate or a similar material, used for writing or drawing with chalk. It is commonly found in classrooms and other educational settings.

How do you get on to blackboard?

Go to google and type in your state and blackboard and it should come up.

How do you say blackboard in Chinese?

"Blackboard" in Chinese is 黑板 (Hēi băn)