I had my college prep geometry work in groups to write everything they know about what we have learned 2nd term in order to prepare for our final exam next week. Here is what they came up with. They have to look them all over for errors. Then they write them down to create their test reference sheet. Most snapped pictures and then copied from their phone.
Similarity, Geometric Mean, Pythagorean Theorem
Right Triangle Trigonometry
Surface Area and Volume