SOH CAH TOA
Drill Right Triangle Trig!
$0.99 · Designed for iPad
Two practice drills backed by three info screens help you learn and apply SOH CAH TOA fast! Proof: My students used this app, and the scores on the test were never higher! As a bonus, they also learned it a lot faster!
One drill is solving for an angle, the other is solving for a side. Each question is answered in two stages: identify the trig ratio to use, then identify the correct equation.
As you continue to practice, the app keeps track of how many correct and incorrect responses you've made, your "streak," i.e., how many in a row you've had correct, and your all-time highest streak, so you can see your improvement over time! (These can be reset to zero at any time.)
Also includes info screens detailing how I explain sine, cosine, and tangent to my students, which has evolved over 20+ years. Even if you know the basics, these are worth a read to see if you can pick up any new insights. Any new connections you can build around the same core information makes you stronger and faster!
As everyone knows, practice makes perfect... especially the right kind of practice! By giving you instant feedback, the drills in this app not only help you learn faster but prevent you from "learning" bad information -- which is always a bear to unlearn. Get the app and use it, and you'll master soh-cah-toa in no time!
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
Bug fix for very narrow screens: bounds error on sliders in AboutSineView, AboutCosineView, AboutTangentView.
The developer, Laurence Stone, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Laurence Stone
- Size
- 7.9 MB
- Category
- Education
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - iPad
Requires iPadOS 18.2 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Laurence Stone
