Tuesday, January 03, 2017

Day 81: Compare Unit Rates

Students in Math 6 and Math 6+ worked with Lesson 5.6: Compare Unit Rates. This lesson extends the student's understanding of rates and unit rates to comparing such items.

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Lesson Objective:
  • 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." (6th)
  • Solve unit rate problems including those involving unit pricing and constant speed. For example, if it took 7 hours to mow 4 lawns, then at that rate, how many lawns could be mowed in 35 hours? At what rate were lawns being mowed? (6th)

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