Colpo ritagliato di bambino che studia i numeri sulla lavagna - Foto e immagini stock

Close-up view of colorful digits and numbers drawing with chalk on blackboard

Education concept - empty wooden table and chalkboard background for product display

Close up of student's hand writing physics formula on blackboard

Pythagorean theorem, also known as Pythagoras's theorem, math class in the school with teacher writing mathematical formula on white board, selective focus

Education concept - empty wooden table and chalkboard background for product display

Cropped shot of little schoolgirl drawing numbers on chalkboard

Back view of cute little schoolgirl drawing numbers on chalkboard

Focused elementary school student studying mathematics on blackboard

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

Schoolgirl in yellow sweater writing on blackboard with chalk

Portrait of schoolchild holding wooden cubes with word math near blackboard

Thoughtful schoolgirl holding chalk and looking at blackboard with math example

Smiling schoolgirl writing on blackboard with chalk and looking at camera