Students are given blocks of 4 colors and use them to practice simplifying an expression. Each variable (x, y, z) and consonant are assigned a unique color and students manipulate them to build the expression and then put the groups together. After building it with blocks students write down the new simplified expression. There are 2 questions where they work backward to go from the simplified version and come up with their own expanded version of the expression. It could also simply be assigned