algebra
background
basic science
black
blackboard
board
chalk
chalkboard
class
clipboard
concept
drawing
education
equation
eraser
formula
geometric
geometry
homework
hypotenuse
knowledge
learn
lesson
math
mathematical
mathematician
mathematics
notebook
number
pattern
pencil
protractor
prove
pythagoras
pythagorean
right
school
science
space
square
student
study
studying
teach
teacher
texture
theorem
triangle
white
writing