1617
1819
background
blackboard
boy
caucasian
class
classmate
classroom
educated
education
exercise
friend
friendship
front
girl
group
handsome
happy
indoor
knowledge
learn
lesson
math
mathematics
people
person
practice
pretty
problem
question
school
science
show
sit
smile
solution
stand
student
study
subject
teacher
teen
teenager
white
young
youth