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Quadrilateral Classification

Categories of quadrilaterals based on sides and angles.

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Practice Quadrilateral Classification
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Quadrilateral Classification
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RWA Quadrilateral Classification


Measuring and classifying quadrilaterals in the real world.


  • parallelogram
  • rectangle
  • rhombus
  • square
  • trapezoid
  • isosceles trapezoid
  • kite
  • dart

Student Exploration

How many quadrilaterals can you identify and classify in the world around you?

To learn more got to

Extension Investigation

1. Students will identify triangles in their classroom or school and do a presentation on what they found. See an example here:
2. Students will do a project involving classification of quadrilaterals. An example project
3. Each student will bring or take a photo of a parallelogram, rectangle, rhombus, square, trapezoid, isosceles trapezoid, kite or dart. Lesson plans are here: http://www.digitalwish.com/dw/digitalwish/view_lesson_plans?id=3446
4. Quadrilateral Web quest http://www.teacherwebquest.com/WQ/HighSchool/Quadrilaterals/hf7.stm

Layering (optional)

Virtual Pinboard, Polygon Sort, Shapes http://www.crickweb.co.uk/ks2numeracy-shape-and-weight.html

Mathematics - Investigating Geometry II: Classifying Quadrilaterals

Quadrilateral Classification


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