Dark With White Markings And Smooth Like A Rock Where Learning Occurs I Help Convey Thought

Riddle: Dark with white markings, And smooth like a rock. Where learning occurs, I help convey thought. What am I?

Answer: Blackboard/chalkboard.

Source: https://www.riddles.com/288

Dark with white markings, And smooth like a rock. Where learning occurs, I help convey thought. What am I? — Dark with white markings And smooth like a rock Where learning occurs I help convey thought by Anonymous v1.

Riddle: Dark with white markings, And smooth like a rock. Where learning occurs, I help convey thought. What am I? Answer: Blackboard/chalkboard. — by Anonymous v2.