This document defines key vocabulary terms related to variables, expressions, equations, and inequalities. It then provides examples of assigning variables to word problems and writing equations to represent relationships between variables. Key terms defined include variable, expression, equation, term. Examples shown include writing equations to represent relationships between a truck and car's weight, gallons and quarts, and the masses of Jupiter and Earth. Further examples demonstrate writing equations from word problems involving tapes and cost, hours and pay, gallons and miles, and pizzas eaten and left.

1. Identify and assign variables 06/04/09 PH 01-02 Bitsy Griffin

4. Term Examples 06/04/09 PH 1-2 Bitsy Griffin

5. # of Terms? 06/04/09 PH 1-2 Bitsy Griffin