academic
asking
back
blackboard
board
chalkboard
class
classroom
college
course
demonstrating
discussing
education
exam
explaining
green
hand
help
helping
individual
learn
learning
lecturer
lesson
man
mentor
mentoring
old
personal
pointing
presenting
private
pupil
questioning
school
secondary
showing
student
study
studying
teacher
teaching
trainee
training
tutor
tutoring
university
waving
young