Lesson plan

# 7. Solve problems involving non-unit fractions (A)

teaches Common Core State Standards CCSS.Math.Content.5.NF.B.5 http://corestandards.org/Math/Content/5/NF/B/5
teaches Common Core State Standards CCSS.Math.Content.5.NF.B.7 http://corestandards.org/Math/Content/5/NF/B/7
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Apply understanding of the relationship of multiplication and division to solve real-world problems

This lesson provides an opportunity for students to apply their knowledge and understanding of multiplication as scaling and division of fractions to a real-life situation. Students are asked to compare the snowfall totals of three mountains given a fraction of show that has melted.

Key Concept students will use:

• The relationship of multiplication and division remain the same regardless of the numbers used.

Skills students will use:

• interpret multiplication as scaling (Grade 5, Unit 7)
• divide a whole number by a unit fraction (Grade 5, Unit 8)

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they apply their knowledge of the relationship between multiplication and division to solve a missing factor multiplication problem.

Key vocabulary:

• division
• scaling multiplication
• unit fraction
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• 7. Solve problems involving non-unit fractions (A)