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chalk board with rules
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JPG 300 DPI
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Author:
dreamstime
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File Type:
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blackboard
blank
board
chalk
class
concept
conceptual
control
creative
creativity
draw
drawing
education
ethics
guidance
guide
guidelines
hand
handwriting
high
instruction
knowledge
learn
list
message
plan
policy
principal
procedure
protocol
regulation
reminder
rule
rules
school
sketch
strategy
study
text
think
university
white
with
word
writing