The vocabulary for working with variable is expressions is listed at the top of this handout. Prealgebra pros evaluate four expressions when a value is assigned to the variables. Then an explanation is given about how changing the value for a variable alters the solution. Four tables of n values are displayed, and learners are challenged to figure out the expression that would fit the pattern. 

Common Core

6.EE.A.2.a 6.EE.A.2.c MP1 MP2 MP7 MP8