Proofs used to scare me and my students, but with scaffolding, structure, and support, we've all increased our confidence. This is the middle of a series of activities I do with my students, from introducing two-column proofs with algebra, identifying triangle proof statements, completing two-column proofs with triangles, then introducing CPCTC. This is the third in that series, and I'll upload them as soon as I create the TPT version. This set utilizes the SSS, SAS, ASA, and AAS theorems, vert