Math · Grades 6-8 · 50 minutes
Understanding unit rate
Students compare grocery-store prices for different package sizes, calculate the unit rate for each, and decide which package is the better buy.
Students will be able to
- Calculate a unit rate from a given ratio.
- Use unit rate to compare two options and justify which is the better value.
Standards
- Aligned to CCSS.MATH.CONTENT.6.RP.A.2 — Understand and use the concept of a unit rate associated with a ratio to solve real-world comparison problems.
Source
Original lesson. Original lesson and grocery-price comparison worksheet written for this site.