TERRIFIC 26-slides Rates, Unit-Rates, and Proportions-Smartboard-Slides-Lesson with-Answers provided.. Teaches vocabulary with examples, along with how to setup a proportion using the words first. Great, Interactive lesson for your students to participate in your math classroom. 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/products/education