adolescence
15 years
16 years
17 years
academic
backpack
boy
caucasian
children
class
college
discussion
education
female
females
friends
girl
group
happy
highschool
indoors
kids
knowledge
learning
lesson
library
male
middle aged
person
positive
pupils
school
secondary school
smiling
student
study
studying
talking
teacher
teenage
teenagers
teens
together
tutor
tutoring
woman
years old
young