2529
30s
assistant
authority
book
casual
caucasian
cheerful
children
class
classroom
course
desk
development
education
elementary
european
exercise
female
group
helping
holding
indoors
instructor
job
kids
learning
lesson
lifestyle
methodic
occupation
portrait
positive
professional
school
smiling
standing
studying
subject
teacher
teaching
textbook
tutor
tutorial
woman
working
young