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Grade 5

CCSS Math Standard: 5.G.3

Classify two-dimensional figures into categories based on their properties. Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.

Geometry Image: Esplanade Theaters

What odd and interesting shapes can your students find in this geometric image?

 Geometry Image: University Ave

What odd and interesting shapes can your students find in this geometric image?

 Geometry Image: Victoria Conference Center

What odd and interesting shapes can your students find in this geometric image?

 Geometry Image: Skytree

What odd and interesting shapes can your students find in this geometric image?

 Geometry Image: Steigerwald

What odd and interesting shapes can your students find in this geometric image?

 What’s In My Brain: Trapezoids or Not?

Which are trapezoids and which are not?

 Grouping Quadrilaterals In A Hierarchy

Can we classify quadrilaterals like we classify living things?

 Lines, Line Segments, Rays, and Infinity!

A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question: Which is longer, a ray or a line? Then, kids consider what these different geometric concepts would think about each other.