Right Triangle Trigonometry

This Right Triangle Trigonometry presentation also includes:

Practice manipulating trigonometric functions, cofunctions, inverses, and applications is the name of the game in this short but extensive problem set. Starting with the Pythagorean Theorem and basic applications, then progressing quickly through more abstract and complex problems, many aspects of right triangle trigonometry are covered in this 15-problem set. Brief summaries in the student notes introduce each section, and the worksheet culminates in application problems considering the height of tall neighborhood objects. A great problem-set addition to your trigonometry curriculum.

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CCSS: Adaptable
Instructional Ideas

  • Consider using the project under Included Materials as an extension of the trigonometric applications
  • Have learners perform real-life experiments with school area flagpoles and power lines to modify problems 14 and 15
  • Lead advanced learners to link the results from trigonometric ratios on special triangles with properties of unit circles
Classroom Considerations

  • Problems assume that learners are familiar with trigonometric ratios and relationships between trigonometric functions and cofunctions
  • Project and student notes are linked under Included Materials
  • May require editiing project text as it is currently written with reference to a specific teacher / class
  • Presentation pdf would make a good interactive white board presentation with solution steps revealed one at a time
Pros

  • Scaffolded and progressive problem set
  • Real-life capstone application problems and project
  • Aligned student notes and teacher presentation
  • Step-by-step solutions to all problems provided
  • Multiple modalities emphasized, including trigonometric functions, cofunctions, and inverse functions
Cons

  • No teaching notes or remediation provided
  • No summary of Soh Cah Toa rules and cofunction / inverse relationship provided