Sujet

Blackboard with calculations frame

Légende

Blackboard with calculations frame

Date

13 juin 2018

Crédit

Photo12/imageBROKER

Notre référence

BRK23G23_209

Licence

Droits gérés

Format disponible

68,7Mo (3,4Mo) / 50,8cm x 33,9cm / 6000 x 4000 (300dpi)

Mots clés

blackboard calculate calculate calculation chalk class class classroom deserted educational institution formula geometry knowledge learn lesson mathematics old retro school science scientific symbolic training triangle triangular vintage