This 9-question self-checking practice activity on evaluating trigonometric functions, with angles in radians, is a great tool for practice, an exit ticket, a do-now, or a short formative assessment. Students evaluate each trigonometric function (with the angle in radians) and type their answer. If correct, the cell turns green. If incorrect, the cell turns red and they know to try again. You may be interested in the same product but for angles in radians, here: Evaluating Trigonometric Funct