67
age
at
book
caucasian
cheerful
child
childhood
children
classroom
color
concepts
education
elementary
friendship
girls
hand
happiness
human
indoors
intelligence
kids
learning
letter
lifestyles
little
looking
one
only
paper
pen
pencil
people
person
portrait
preadolescent
preschooler
reading
school
schoolgirl
sitting
smiling
student
studying
teaching
textbook
wisdom
writing
years