Trigonometry
Trigonometry: The Measure of Triangles
"So teach us to number our days, that we may apply our hearts unto wisdom."
Psalm 90:12 (KJV)Free
Online interactive lessons · Printable PDF included · No payment required
What's inside
- 36 interactive lessons on trigonometry: the measure of triangles
- A memory verse in every lesson, paired with teaching that carries the math concept
- Angles, radians, and the unit circle
- The six trigonometric functions and their graphs
- Identities, inverse functions, and solving trig equations
- Right triangles, the Laws of Sines and Cosines, vectors, polar coordinates, and complex numbers
- Clickable quizzes at the end of each lesson with instant feedback
- Printable PDF of the full course included for offline study and review
How it works
- Click Start Learning Free. Every lesson is open right away, no purchase and no sign up.
- Work through each lesson online: study the lesson, learn the memory verse, try the guided practice, and answer the quiz.
- Track your progress lesson by lesson. Quiz scores and memory-verse work are saved automatically.
- Printable PDF included for offline reading and printing at home.
Details
| Format | Interactive online course + printable PDF (US Letter) |
| Ages | Ages 14 to 18 |
| Length | One school year, 36 weekly lessons |
| Bible version | King James Version |
| Price | Free |
Questions
Who is this course for?
This course is written for ages 14 to 18: a full school year of trigonometry taught through the King James Bible. The 36 weekly lessons work for students learning at home, with a parent nearby or independently as they grow.
Is it really free?
Yes, completely. Every one of the 36 lessons, every quiz, and the printable PDF are free. There is no checkout, no trial period, and nothing to cancel.
How do the lessons work?
Each lesson opens online with teaching, a memory verse from the King James Bible, guided practice, and a clickable quiz at the end. Everything is interactive: students work through it right in the browser, with instant feedback as they go.
How are the quizzes graded?
Every lesson ends with a clickable quiz that grades itself the moment your student answers. Correct and incorrect answers are explained right away, and scores are saved so you can track progress lesson by lesson.
Calculus
Calculus: The Mathematics of Change