This is an AWESOME, thorough Smartboard-Slides-Lesson (34-slides total!) over Modeling-Equivalent-Algebraic-Expressions. Lots of interactive practice for students. Everything you need to teach this skill/concept. Includes Word Problems, Computation, Modeling, EVERYTHING!!! You'll use this year after year! WARNING: You MUST have SMART Technologies SMART software, and a SMARTBOARD to teach from, to effectively download, open and use this Interactive Smartboard Lesson. Go to https://legacy.smarttec