2
arithmetic
back
background
blackboard
board
caucasian
chalk
chalkboard
child
childhood
class
classroom
clever
concept
cute
decide
desk
drawing
education
elementary
example
girl
green
intelligence
kid
knowledge
learn
lesson
little
math
mathematics
number
one
people
person
portrait
preschool
pupil
school
schoolchild
schoolgirl
smart
solve
student
study
teaching
think
white
young