Angle in on the different types of angles. By watching an informative video, scholars see how to classify angles. It covers acute, right, obtuse, straight, and reflex angles. Some example problems focus on classifying angles given their measures.

Concepts

acute angles, angles, right angles, obtuse angles, straight angles

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Additional Tags

math

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Instructional Ideas

• Have the class create a graphic organizer to classify angles
  

Classroom Considerations

• Note that the video uses the term trapezium, rather than trapezoid
• Pupils should be familiar with the concept of angle measure
  

Pros

• A separate worksheet with additional practice problems is available
  

Cons

• Uninteresting treatment of the topic will likely not engage learners
  

Common Core

4.G.A.1