An Introduction to Trigonometry

This book presents and introduction to trigonometry using only degrees.  It will be helpful for a student or class needing a gentle start to the subject or one trying to get a preview of trigonometry before studying it in radian measure.  Topics include the basics of how to evaluate and graph trigonometric functions, proving identities, solving equations, and solving triangle problems.


The book provides standard textbook features such as worked examples, problems sets with answers, review sections, and a glossary.  The text also takes advantage of the iBook format with video tutorials, hints, and quizzes.


While designed to support work in an Algebra 2 and Trigonometry course, this book has also been used by students learning on their own for enrichment or acceleration.