Lesson plan

# 8. Go on a shape hunt (A)

teaches Common Core State Standards CCSS.Math.Content.K.G.A.2 http://corestandards.org/Math/Content/K/G/A/2
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Apply understandings of the attributes of shapes by using defining attributes, not shape size or orientation, to identify and name shapes.

This lesson provides an opportunity for students to apply their knowledge and understanding of the defining attributes of shapes to a real-life situation. Students are asked to go on a shape hunt to find shapes in their environment.

Key Concept students will use:

• The name of a shape is invariant with regard to its orientation or size.

Skills students will use:

• spatial reasoning to informally describe the shapes of objects and the relative position of objects; (Grade K, Unit 3)
• defining attributes to identify, name and describe shapes.

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they look closely at the structure of objects in their environment that match the defining attributes of the shapes listed.

Key vocabulary:

• attributes
• objects

Suggestions:

• Environments for shape hunts included the classroom, cafeteria, hallways or playground.
• Place several images of shapes or real-world shape objects in the environment students will be exploring (ex. assorted boxes, soup cans, party hats, picture frames, books, etc.) to ensure successful object-shape matching.
• Keep concrete shapes on hand to prompt students who have difficulty remembering defining attributes while on the shape hunt.

Special materials needed:

• Concrete shape objects and/or images of shapes (squares, triangles, circles, hexagons, rectangles, cubes, sphere, cylinders, cones)
• Shape Hunt List
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• 8. Go on a shape hunt (A)