abacus
academic
adorable
attentively
back to school
boy
caucasian
child
childhood
class
classroom
concentrated
concentrating
cute
development
dressing up
early learning
education
elementary
elementary school
focused
holding
indoors
intelligence
intelligent
knowledge
learn
learning
lecturer
lesson
male
portrait
pretending
primary
pupil
school
schoolboy
schoolchild
serious
standing
student
teacher
thoughtful
tutor