academic
back
blackboard
board
book
books
chalkboard
class
classroom
college
demonstrating
discussing
education
elder
exam
experienced
explaining
graduation
green
heavy
high
holding
learn
learning
lecture
lecturer
lesson
man
mentor
mentoring
old
older
pile
presenting
school
science
secondary
senior
showing
study
studying
teacher
teaching
textbook
textbooks
training
tutor
tutoring
university