Lesson plan

# 5. Use attributes to build composite shapes (A)

teaches Common Core State Standards CCSS.Math.Content.1.G.A.1 http://corestandards.org/Math/Content/1/G/A/1
teaches Common Core State Standards CCSS.Math.Content.1.G.A.2 http://corestandards.org/Math/Content/1/G/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4

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Lesson objective: Apply knowledge of shape attributes and composite shapes to solve a real-world problem.

This lesson provides an opportunity for students to apply their knowledge and understanding of defining and non-defining shape attributes and composite shapes to a real-life situation. Students are asked to help a student build a composite shape model rocket using at least 10 shapes.

Key Concept students will use:

• Use 2-dimensional shapes to compose a composite shape.

Skills students will use:

• Compare and analyze 2- and 3-dimensional shapes in different sizes and orientations; Defining attributes of circles and squares; (Grade K, Unit 11, K.G.B.4)

• Model and compose shapes; (Grade K, Unit 15, K.G.B.5)

Students engage in Mathematical Practice 4 (model with mathematics) as they use pattern blocks or shape cut-outs to build a composite shape using basic shapes with which they are already familiar.

Key vocabulary:

• basic shape
• composite shape

Special materials needed:

• pattern blocks
• shape cut-outs
• tangrams