Female student in glasses sits by green board in classroom. - Stock Photo & Image

Teenager girl in math class overwhelmed by the math formula. Pressure, Education, Success concept.

Smiling woman showing digital tablet against green background

Pensive african american teacher holding notebook near blurred pupils in classroom, banner

Male student wearing casual clothes while standing near the chalkboard and looking at the camera

Portrait of two diligent girls looking at camera at workplace with schoolboys on background

Serious young intern looking at middle aged woman scientist in futuristic discovery center, banner

Smiling chemistry teacher in white coat explaining lesson in front of blackboard

Schoolgirl in yellow sweater writing on blackboard with chalk

Pensive schoolchild in glasses looking up near blackboard

Thoughtful schoolgirl holding chalk and looking at blackboard with math example

Smiling schoolgirl writing on blackboard with chalk and looking at camera

Cropped image of schoolchild holding wooden cubes with word math near blackboard