These guided notes provide support for students learning angle relationships (vertical, adjacent, complementary, supplementary), triangle classification (by sides and by angles), and basic angle properties (side inequality theorem and angle sum). Students will understand vocabulary and practice identifying these geometric relationships in diagrams. The notes are sized to fit nicely in an interactive notebook, but could also be completed as a foldable-style notebook by students. Several practice diagrams are included for each concept. Answer keys are included.