(sometimes derogatory) a formal method of teaching, in which the focal points are the blackboard and the teacher’s voice, as contrasted with more informal child-centred activities
a soft, white, powdery limestone consisting chiefly of fossil shells of foraminifers. a prepared piece of chalk or chalklike substance for marking, as a blackboard crayon. a mark made with chalk. a score or tally. to mark or write with chalk. to rub over or whiten with chalk. to treat or mix with chalk: to […]
a chalked string for making a straight line on a large surface, as a wall, by holding the string taut against the surface and snapping it to transfer the chalk. the line so made.
- Chalk out
verb (transitive, adverb) to outline (a plan, scheme, etc); sketch
- Chalk something up
verb phrase To record credit or debit, as if by a chalk mark: She won easily, and we must chalk it up to her careful preparation (late-1500s+)