This is for Trig/Precalculus teachers who need to help their students brush up on their Trig ratios.
There are 14 Speed Quizzes here to use.
Each Speed Quiz has 10 questions and vary in using degrees/radians/reciprocal functions.
For Trig (students who are just learning trig)
I recommend administering them in order. Total time: 3-6 Weeks depending on how often you want to quiz.
For Precalculus (start where you feel is appropriate for your students)