1316
1417
3035
3540
adolescent
american
attention
audience
boy
caucasian
cautiously
concentrated
european
examination
female
focused
french
german
girl
grade
group working
hearing
inside
learner
learning
listener
male
man
overwatching
pedagogy
pupils
russian
scholar
schoolchild
schooling
schoolroom
sitting
stripling
teacher
teamwork
teenagers
teens
testing
viewing
young
young person
youngsters