Lets try this again. an unrecognizable boy using the duster to clean a blackboard - Kuvapankin valokuva ja kuva

Give them the freedom to draw. a young boy writing on a blackboard at home

Soft focus blue Chalkboard or green board. High School Student of Hand holding white chalk writing on green board in classroom .Education concept.

Chalk it up to good education. Cropped image of a young boys hand writing on a blackboard with a piece of chalk

Back to school background

Rear view of a young boy writing something on a blackboard with a piece of chalk - copyspace.

Getting good at mathematics. A young boy doing his sums on a blackboard with a piece of chalk - copyspace

Your copys what hes writing. A young boy writing on a blackboard with a piece of chalk - copyspace

Its all in the formula...Cropped image of a teacher writing a formula on a blackboard

Closeup, hand and writing on a blackboard, formula and teaching with system, process and geek. Zoom, person and teacher with chalk, learning and maths equation with calculation, research or education.

Hes getting the hang of this. A little boy writing on the blackboard during a school lesson

Mini-mathematician. A young girl doing maths on the board as her teacher watches smiling

A pretty young teacher writing todays lesson plan on the blackboard.