With references for scatter plots, function vs not a function, exponent rules, systems of equations, squares, cubes, rational and irrational numbers, prime numbers, proportional vs not proportional, linear vs nonlinear, this 8th grade math word wall is a great addition to an 8th grade math classroom. The references are integrated (ex: "proportional" is shown on the table that corresponds to one of the graphs in the systems of equations) so that students can see how everything relates.