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Child learns numbers game logic. Selective focus.
Young teacher or student draw triangle on a blackboard with formula
Young teacher or student draw triangle on a blackboard with formula
Flat lay stationery items for homework on a wooden background.
Young teacher or student draw triangle on a blackboard with formula
Teacher or docent or educator giving while lesson in front of a blackboard or board a sheet of paper
Desk with chalk, eraser and Blackboard with geometry drawings
Desk with chalk, eraser and Blackboard with geometry drawings
Desk with chalk, eraser and Blackboard with geometry drawings
the student draws in a notebook in a cage with a pencil
