This worksheet booklet is designed to be an entire lesson, giving the students the framework to discover the trigonometric values for 30, 45 and 60 degrees. Easily adaptable to radians if required. PDF and PowerPoint versions.
I recommend having this printed as a booklet and using the presentation to work through the answers at the front of the class.
Answers are included for easy marking. Student self assessment is also included.
Update: Minor corrections and lesson powerpoint included