This is a GREAT interactive lesson for students that teaches how to solve Ratios-and-Rates, including in word-problems. 22-slides in all ~ very thorough lesson. You can print the slides to use as Task Cards around the classroom. Your students will LOVE this! You'll want to use it 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.smarttech.com/en/