La mano de un hombre con tiza sobre un fondo de pizarra verde, copia el espacio. - Foto e imágenes de stock

Math teacher writes chalk on blackboard, copy space.

Female hand writing on blackboard with chalk, close up

Man with white chalk near blackboard, closeup. Space for text

A female teacher writes with chalk on blackboard close up.

A man's hand with chalk on a green blackboard background copy the space.

A female teacher writes with chalk on a blackboard close up.

A man's hand and a woman's hand on background of a blackboard. The concept of school love.

Math teacher writes chalk on blackboard copy space.

Male and female hand pointing fingers gesture goat on the background of the blackboard.

A brunette teacher in the classroom at the blackboard writes tasks for students with chalk.

A teacher writes a solution to math problem with chalk on a blackboard.