Loading
Trigonometry
Trigonometry is where triangles meet circles. We build the unit circle from scratch so students understand it instead of memorizing it, then use it to solve real problems.
Mathematics
Trigonometry
- Rate
- $40 to $80 per hour
- How sessions work
- OnlineIn person
The exact rate depends on the level and the arrangement.
What we cover
- Right triangle trigonometry and SOH CAH TOA
- Radians and degrees
- The unit circle
- Graphs of sine, cosine and tangent
- Trigonometric identities
- Law of Sines and Law of Cosines
- Inverse trigonometric functions
- Solving trigonometric equations
Who it is for
High school students in Trigonometry or Precalculus, and college students who need a solid refresher before Calculus.
What students walk away with
- A unit circle you can rebuild from memory in a minute
- Comfort proving and using identities
- The trig fluency Calculus expects on day one
How sessions work
Every session is one hour, one-on-one, and follows your class, your homework and your goals. We review what is coming up, work through it together and leave you with practice that sticks.
- Online anywhere in the U.S.
- In person in Minneapolis by arrangement
Your instructor
Ariel Ngongo
Founder and lead tutor
Professional engineer with a B.S. in Mechanical Engineering and more than six years of engineering experience.
Related courses
Algebra 1
Equations, functions and the habits that carry you through every math class after this one.
View courseAlgebra 2
Quadratics, exponentials, logarithms and the tools you need for Precalculus and beyond.
View courseGeometry
Shapes, proofs and spatial reasoning, from the first postulate to the last theorem.
View course
Ready to build your mathematical confidence?
Every great achievement begins with a strong foundation.
Whether you want better grades, a strong score on an exam or a deeper understanding of math, we are ready to help you take the next step.
Explore our courses