4. Drawing shapes to model shapes in the environment (C)

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: Extend understanding that two-dimensional shapes are named and drawn based on specific attributes.

Students bring prior knowledge of two-dimensional shapes from K.G.B.4. This prior knowledge is extended to students drawing specific shapes based on attributes as students use picture clues to draw two-dimensional shapes. A conceptual challenge students may encounter is understanding the correct number of sides for different figures,  or using straight line segments for sides.

The concept is developed through work with grid paper and drawings, which help students understand the different attributes of specific shapes.

This work helps students deepen their understanding of number because the number of sides and angles on a two-dimensional shape help us name them.

Students engage in Mathematical Practice 4 (Model with Mathematics) as they draw shapes for the mask.  Students continue to explore how math can be modeled in the real world.

Key vocabulary:

• Angle
• Rectangle
• Rhombus
• Side
• Square
• Trapezoid
• Triangle

Special materials needed:

• Dot paper
• Scissors
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