Estudante pensativo em óculos olhando para cima perto de quadro-negro com sinal de lâmpada - Banco de fotos e imagens

Cute girl showing strong arms with light bulb on green chalkboard

Little girl has and idea on chalkboard background

Advertising, gesture, education, childhood and people - smiling little girl in white t-shirt pointing finger up over green board with doodle background

Little girl has and idea on chalkboard background

Portrait of an adorable Asian girl wearing school uniform while realizing an idea in a classroom

Girl holding a white banner. place for text

A schoolgirl at the blackboard was able to find a solution to the problem. inspiration. the idea came

Surprised schoolgirl with multicolored stickers looking at camera on black background

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

Portrait of schoolchild holding wooden cubes with word math near blackboard

Smiling schoolchild holding wooden cubes with word math near blackboard

Creative collage of stylish young businesswoman with drawn idea light bulbs

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

Smiling boy writing math example on blackboard with chalk and looking at camera

African american man showing on business icons at meeting in office space