Instructional Video

Introduction to SOHCAHTOA

Curated and Reviewed by Lesson Planet

You might not be able to pronounce it, but everyone remembers SOHCAHTOA. Young mathematicians learn a way to remember the three major trigonometric ratios. They see how the first letters of certain words lead to the mnemonic. 

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Use the video to review trigonometric ratios
  • Provide cloze notes for learners to fill in while watching video
Classroom Considerations
  • Scholars must be able to identify the opposite leg, the adjacent leg, and the hypotenuse
  • Third installment of a 16-part video series
  • This video is hosted on YouTube
Pros
  • Animations help pupils understand the mnemonic
Cons
  • No example problems