6.RP.A.3. - Use ratios and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
6.RP.A.3d - Use ratio reasoning to convert measurement units, manipulate and transform units appropriately when multiplying or dividing quantities.
Lesson 6.1 - Convert Units of Length
Lesson 6.2 - Covert Units of Capacity
Lesson 6.3 - Convert Units of Weight and Mass
Lesson 6.4 - Transform Units
Lesson 6.5 - Problem Solving- Distance, Rate, and Time Formulas