Ele escreve no quadro com giz. Problema matemático. Uma rapariga no quadro-negro . - Banco de fotos e imagens

He writes on the chalkboard with chalk. Math problem. A girl at the chalkboard.

Schoolboy writing on chalkboard in classroom. School student in blue shirt and tie standing in front of blackboard and writing using chalk. Back to school, education concept

The little schoolgirl holds a chalk in her hand and writes solution to the problem on the school blackboard,

Preteen schoolgirl counting on fingers near chalkboard with mathematic equations

Schoolgirl standing near blackboard with formula

Primary school education. Back view of young girl doing sum on chalkboard at mathematics class.

Mathematical task. Blackboard. Young teenage girl. He solves the task standing at the school board. I write with chalk on the blackboard.

Long frame. Mathematical task. Blackboard. Young teenage girl. He solves the task standing at the school board. I write with chalk on the blackboard.

Long frame. Mathematical task. Blackboard. Young teenage girl. He solves the task standing at the school board. I write with chalk on the blackboard.

Panoramic frame. A young schoolgirl writes on the blackboard. School math lesson. He writes a math problem. Girl at a school blackboard.