accessories
blackboard
board
box
case
chalk
class
classroom
color
compasses
crayon
digit
education
elementary
equipment
eraser
exercise book
formula
group
homework
instrument
items
learning
lesson
lifestyles
math
mathematics
multiplication table
no people
nobody
notebook
number
object
office
paper
pencil
protractor
rubber
ruler
school
school supplies
sharpener
stationery
still life
study
subjects
supplies
teaching
tool