Learning Goal
Part of: Understand ratio concepts and use ratio reasoning to solve problems — 2 of 3 cluster items
Understand the concept of a unit rate
**6.RP.A.2**: Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, "This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar." "We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger."
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6.RP.A.2: Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, "This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar." "We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger."
What you'll learn
- Define a unit rate as the value a/b associated with a ratio a:b (with b ≠ 0), and explain what it means in context: how much of one quantity exists for every 1 unit of the other
- Use rate language — "per," "for each," "each," "every" — to describe a unit rate relationship, and distinguish this language from the general ratio language introduced in 6.RP.A.1
- Compute a unit rate from a given ratio by dividing the first quantity by the second (i.e., find a/b from a:b)
- Interpret unit rates that are fractions less than 1 (e.g., the unit rate associated with 3:4 is 3/4, meaning 3/4 of the first quantity per 1 unit of the second)
- Apply unit rates to reason about ratio relationships in real-world contexts, including pricing, recipes, and speed
Prerequisites
Slides
Interactive presentations perfect for visual learners • Interactive presentation
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises