academic
algebra
assignment
blackboard
board
book
books
chalkboard
checking
class
classroom
college
crying
education
equation
evening
exam
exams
formula
frustrated
high
late
learning
lecture
lecturer
lesson
looking
man
math
mathematical
mathematician
mathematics
night
overtime
physicist
physics
preparing
punctuality
reading
revising
school
student
studying
teacher
tearful
textbook
textbooks
time
university
watch