In this self-checking Google Sheets™ digital activity, students will solve TRIG EQUATIONS involving sine, cosine, and tangent with 12 problems. HOW IT WORKS: When an answer is typed correctly, the lock will unlock. If students get the answer wrong, the lock will remain locked. After answering the first three questions correctly, the next three questions will appear. After students have answered all 12 questions correctly, a holiday themed word will appear and students will have to unscra