Lesson plan

# 6. Applying division strategies with problems involving grams, kilograms, and liters. (A)

teaches Common Core State Standards CCSS.Math.Content.3.MD.A.2 http://corestandards.org/Math/Content/3/MD/A/2
teaches Common Core State Standards CCSS.Math.Content.3.OA.A.3 http://corestandards.org/Math/Content/3/OA/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5

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Lesson objective: Solve division problems involving grams, liters, and kilograms.

This lesson provides an opportunity for students to apply their knowledge and understanding of division to a mathematical situation. Students are asked to help figure out which box is which after an order form gets smudges on it.

Key Concept students will use:

• We can use division to solve problems involving measurement quantities (including liquid volumes and masses of objects).

Skills students will use:

• Using arrays for foundations for multiplication (Grade 2, Unit 13)
• Exploring equal groups as a foundation for multiplication and division (Grade 3, Unit 1)
• Understanding the relationship between multiplication and division (Grade 3, Unit 7)
• Developing strategies for multiplication and division (Grade 3, Unit 9)

Students engage in Mathematical Practice 4 (Model with mathematics) as they with model the math using multiple strategies like tape diagrams, number lines and equations.

Key vocabulary:

• division
• grams (g)
• kilogram (kg)
• liter (L)