Color-coded trivia cards with Algebra--Trig math questions are the way to go! You can print these as 2-sided (directions included) or keep the answers separately.
As a bonus for those who want to save on ink, the zip file includes a black and white version.
This is the most useful product you can buy at the price. Why make your students bored when this product will be a fun and productive addition to your instruction.
Answers include full explanation and/or procedure for calculations.
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