adolescent

ballpoint

book

boy

boys

class

classmate

college

copybook

curve

educate

education

fingers

guy

hands

holding

indoors

knowledge

lesson

male

males

mathematics

notebook

notepad

pen

person

primary

pupil

pupils

room

school

schoolboy

schoolboys

schoolchildren

secondary

students

studying

table

teen

teenager

teenagers

thinking

two

write

writing

young

youth