Equations on the old style blackboard Stock Image
by oneo
Description
Equations on the old style blackboard isolated on white background
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Keywords
- blackboard
- chalk
- backgrounds
- education
- writing
- school
- equation
- wood
- nobody
- color
- image
- green
- classroom
- blank
- horizontal
- message
- student
- white
- high
- drawing
- slate
- eraser
- board
- lecture
- isolated
- copy
- painting
- back
- black
- illustration
- frame
- textured
- mathematics
- teaching
- shape
- learning
- university
- space
- mathematical
- dirty
- physics
- formula
- sketching
- plan
- presentation
- symbol
- letter
- football
- computer
- maxwell