book

boy

caucasian

chalk

chalkboard

checks

child

class

classroom

desk

education

elementary

empty

exam

exercise

grade

happy

human

kid

knowledge

learn

lesson

listen

little

male

notebook

pen

people

person

portrait

primary

pupil

school

schoolboy

schoolchild

small

smile

study

suit

table

teacher

teaching

teenager

two

uniform

vest

wait

white

woman

wooden