20s
academic
back to school
black
boy
career
caucasian
chalkboard
cheerful
child
childhood
class
classmates
classroom
cute
development
early learning
education
elementary
elementary school
female
girl
happy
indoors
job
knowledge
learn
learning
lesson
listening
male
math
occupation
profession
pupil
school
schoolchild
smiling
studying
teacher
teaching
woman
writing
young adult