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:
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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