Positive teacher holding chalk and laptop near chalkboard in school - Stockfoto’s en -afbeeldingen

Smiling teacher holding chalk and laptop near math formulas on chalkboard

Positive teacher pointing with finger during mathematic lesson in school

Young teacher near whiteboard in modern classroom. Space for text

Beautiful young teacher near blackboard in classroom

Happy teacher holding chalk near mathematic formulas on chalkboard

Beautiful young teacher writing on blackboard in classroom

Blurred doctor with felt pen and clipboard writing chemical formulas on glass board

Low angle view of blurred chemist holding clipboard and felt pen near chemical formulas on glass board

Brunette doctor in white coat writing chemical formulas on glass board in lab

Low angle view of scientist with felt pen near blurred formulas on glass board

Shocked geometry teacher touching face and pointing with finger at chalkboard with illustration

Smiling teacher looking away and pointing with finger near chalkboard

Collage of teacher with pointing stick showing thumb up, reading book, holding globe, pointing at digital tablet near chalkboard

Shocked teacher touching face and pointing with finger near chalkboard