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

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

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

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

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

A smart young man solves a math problem with his back to the camera writing on a College blackboard.

A student used white chalk to write mathematical formulas on the blackboard.

The change in the school, an empty classroom, with notepad and pencils on the tables. A group of children discussing a lesson standing near the blackboard.

Blurred focus. Abstract background of class room with pupils

Classroom in a blurred background with no children. Students left their backpacks and notebooks and went on a break

Classroom in a blurred background with no children. Students left their backpacks and notebooks and went on a break