21
back
building
caucasian
cheerful
child
childhood
children
corridor
disabled
disorder
down
downs
early
education
elementary
females
girl
gray
handicapped
happy
home
homework
indoors
integrated
kid
knowledge
learn
learning
males
mentally
people
playground
primary
pupil
sad
school
schoolboy
schoolchild
schoolgirl
september
small
student
studying
syndrome
trisomie
trisomy
uniform