Math Education Concepts

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Teaching Inverse Trigonometric Functions


Inverse trigonometric functions are functions that reverse trigonometric functions (in brief).  Trigonometric functions are functions of an angle measure.  They are primarily used to find lengths of the legs of a triangle (or some triangular relationship).  Inverse trigonometric functions are functions of the ratio of lengths of a triangle.  They are primarily used to find the corresponding angle of the ratio of the legs of a triangle.  There are other uses, but I will keep it brief for this blog.

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Every semester, I have to put more effort into explaining inverse trigonometric functions.  Although the concept is the same, the students, and their perceptions, change.  There are only so many ways I can think of to explain this concept.  So I decided to get some help from several online resources.  Of course, I suggest that my students do the same, but that’s another blog, for another day.

Here are a few links I came across that should be helpful to students and teachers alike, looking for alternative ways to explain inverse trigonometric functions.


Khan Academy

Randy Anderson (YouTube)

Paul’s Online Math Notes (Paul Dawkins)

How do you teach inverse trigonometric functions to your students?




Author: Math Education Concepts

I am a Co-founder of and Program Coordinator for Math Corps Philadelphia, a combined academic enrichment and mentoring program. I am the author of "Teacher Training Manual: Designed for Secondary Mathematics Teachers of African American Urban Students." I hold a Master of Education degree in Secondary Mathematics and have several years of experience teaching secondary and post-secondary mathematics.

2 thoughts on “Teaching Inverse Trigonometric Functions

  1. How is the book coming along, daughter?


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