Click on the image at right to get the lesson app with instructor notes.In this lesson, students will learn about equivalent ratios, rates, and unit rates. They will use equivalent ratios to fill in missing numbers in tables and how to multiply and divide to determine equivalent ratios. The language "For every ___, there are ___" is used here to describe ratios. This language reinforces the idea that ratios are not necessarily descriptions of "fixed" amounts, but of amounts that can change together multiplicatively. Students will learn that rates are just ratios where the terms are given in different units. They will also briefly look at how a double number line can be used to model and find rates and unit rates. Finally, students will learn about kinetic energy, the energy of a body in motion, and the formula for calculating the kinetic energy of an object in motion, which relies on the velocity of the object.