10 years
1012 years
11 years
12 years
20s
american
attention
back to school
caucasian
child
class
classmate
classroom
communication
development
education
elementary
european
explaining
french
german
girl
indoor
junior
kid
knowledge
language
learn
lecture
lesson
listening
person
primary
pupil
room
school
schoolboy
schoolgirl
schoolkid
sitting
student
study
teacher
teenager
tutor
woman
young
youth