We are moving our free videos to YouTube and retiring student functionality on 7/15. Learn more

Lesson plan

6. Use rates to compare growth: Who grew faster? (Project MELD)

  • From LearnZillion
  • Created by
  • Standards
  • Tags
teaches Common Core State Standards MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards 6.RP.A.2 http://corestandards.org/Math/Content/6/RP/A/2
Print / PDF
Press ESC or click here to exit full screen

Tip: swipe on touch devices, use your keyboard's ← and → arrow keys, or clicker buttons to quickly navigate the lesson plan

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson plan.

6. Use rates to compare growth: Who grew faster? (Project MELD)

About this lesson

Lesson objective: Apply knowledge of unit rate to determine which sibling grew faster.

This lesson provides an opportunity for students to apply their knowledge and understanding of unit rate to a real-world situation. Students are asked to determine which sibling grew faster given data about height measurements and the year those measurements were taken.

Key Concept students will use: 

  • Every ratio can be associated with a unit rate; the ratio a:b is associated with the unit rate a:b/1.

Skills students will use:

  • calculating a unit rate given a ratio
  • comparing unit rates

Students engage in Mathematical Practice 4 (Model with mathematics) as they identify the important quantities on the height chart and map their relationships so they can draw conclusions about which child grew fastest. 

Key vocabulary: 

  • ratio
  • ratio table
  • unit rate