Engage your students with the circuit format! This 20-question NO CALCULATOR circuit asks students to analyze trig equations (e.g. y = 2 sin(x/3)) for various characteristics of the graph such as amplitude, period, phase shift, etc. Students hunt for their answer and then that becomes the next problem. The problems build in difficulty and involve even tangent and cosecant at the end. In many ways the circuit is no prep because all the teacher has to do is work the circuit ahead of the students.
This circuit would be great for review, guided notes, an in class or out of class assignment, ACT review -- you name it!
There is no answer key included because the answers are embedded in the circuit.