Lesson plan

# 7. Dev's Sculpture: Measure differences in length (A)

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

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Lesson objective: Apply measuring differences in length between two objects.

This lesson provides an opportunity for students to apply their knowledge and understanding of measuring differences to a real-life situation. Students are asked to find multiple pairs of screws that have a 3 centimeter difference in lengths.

Key Concept students will use:

• Measurement can be used to determine how much longer one object is than another.

Skills students will use:

• Measuring lengths with a centimeter ruler

Students engage in Mathematical Practice 1 ( Make sense of problems and persevere in solving them) as they select and test different pairs of screws using various strategies, such as using a ruler and combining differences.

Key vocabulary:

• difference