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Subtopic: Quadrilaterals

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Resource	Grade Level	Media Type
Measuring Area Students calculate the areas of polygonal figures. They use hash marks to create square units and to count the units, including half-units.	3-6	Lesson Plan
Perimeter and Area Together Students recognize that rectangles can have the same perimeters but different areas. They are asked to calculate the perimeters and areas of different rectangles and understand the concept of maximum area.	4-7	Lesson Plan
Skate-Off: Final Round, Inez vs. Rimm In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.	4-8	QuickTime Video
Skate-Off: Round One In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.	4-8	QuickTime Video
Skateboarding In this video segment from Cyberchase, Bianca gets injured while skateboarding, so her friend brings her a device to use to reach objects while she's recovering in bed.	4-7	QuickTime Video
Varieties of Quadrilaterals Students learn to classify quadrilaterals, including trapezoids, with a focus on different types of parallelograms. They learn the relationships among rectangles, squares, and rhombuses as different types of parallelograms.	4-7	Lesson Plan