bad
blackboard
board
calculate
chalk
chalkboard
child
class
classmate
classroom
cognition
college
counting
course
dejected
depressed
desperate
difficult
education
emotion
exam
failure
female
formula
girl
head
ignorant
junior
learn
learning
lesson
math
negative
penalty
primary
problem
punishment
sad
school
schoolgirl
stress
stressed
student
study
teen
teenager
test
thoughtful
unsuccessful
upset