In my classroom, I grouped words by topic and taped them to construction paper before hanging. Each topic is a different color. Words are moved and temporarily displayed at the front of my classroom while introducing/teaching the vocabulary word(s) and then returned to the word wall.
Terms defined:
Base
Coefficient
Completing the Square
Compound Inequality
Compound Interest
Constant
Continuity
Cube root
Domain
End behavior
Equation
Evaluate
Exponent
Exponential Function
Expressio