Instructional Video

Sine or Cosine Rule?

Curated and Reviewed by Lesson Planet

Explore triangle problems that require the Law of Sine or Law of Cosine. A straightforward lesson focuses on deciding when to use each law. The instructor presents several triangles for pupils to consider and describes patterns in the triangles.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Flip your classroom by assigning the video as homework and using class time for practice
  • Follow the video with practice problems requiring both the Law of Sine and Law of Cosine
Classroom Considerations
  • Expects pupils already know the Law of Sines
  • This video is hosted on YouTube
Pros
  • Provides thorough explanations and tips for remembering information
  • Uses visuals to reinforce the content
Cons
  • None