Lesson plan

# 10. Solving Multi-Step Measurement Problems (A)

teaches Common Core State Standards CCSS.Math.Content.4.MD.A.2 http://corestandards.org/Math/Content/4/MD/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Lesson objective: Solve multi-step problems involving addition, subtraction, multiplication, and/or division within the context of measurement.

This lesson provides an opportunity for students to apply their knowledge and understanding of addition, subtraction, multiplication, and division to solve real-world measurement situations. Students are asked to determine if there is enough punch for their entire fourth grade class to have two glasses and decide how many 19-quart decorative containers the teachers can serve the punch in.

Key Concept students will use:

• Addition, subtraction, multiplication, and division to solve multi-step measurement problems.

Skills students will use:

• Solve addition and subtraction problems using measurement (Grade 3, Unit 6)
• Use multiplication and division to solve measurement problems (Grade 3, Unit 14)
• Use measurement conversions (Grade 4, Unit 6)

Students engage in Mathematical Practice 6 (Attend to precision) as they calculate efficiently and accurately.  Students should be able to communicate precisely with others and use correct mathematical language.  They also should be able to accurately label quantities and operations used within the problem.  Additionally, students will engage in Mathematical Practice 1 (Make sense of problems and persevere in solving them) as they continue to spend a lot of time working with word problems and, as they persevere in solving word problems, their confidence will improve which will improve all areas of the mathematically proficient student.  Students should begin to see the connectedness between related word problems involving the four operations and different ways to approach solving them.

Key vocabulary:

• conversion
• cup
• factor
• gallon
• liter
• milliliter
• product
• quart
• quotient

Special materials needed:

• graph paper