# 3. Use attributes to build 3D solids (A)

teaches Common Core State Standards CCSS.Math.Content.K.G.B.5 http://corestandards.org/Math/Content/K/G/B/5
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Lesson objective: Apply understanding of three-dimensional shapes and their attributes.

This lesson provides an opportunity for students to apply their knowledge and understanding of three-dimensional shapes to a real-life situation. Students are asked to construct a city of 5 buildings using toothpicks and clay using given directions.

Key Concept students will use:

• Model shapes in the environment by building them from components (toothpicks, clay,etc.)

Skills students will use:

• use attributes to describe three-dimensional shapes (Kindergarten, Unit 5)
• compose three-dimensional shapes out of two-dimensional shapes
• build three-dimensional shapes out of components (clay and toothpicks)

Students engage in Mathematical Practice 4 (Model with Mathematics) as they construct buildings out of toothpicks and clay to represent three-dimensional shapes

Key vocabulary:

• Cube
• Edges
• Faces
• Rectangular Prism
• Square Pyramid
• Triangular Pyramid
• Vertices

Special materials needed:

• Clay
• Straws
• Toothpicks
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