This resource currently contains 290 high school geometry bell ringers (warm-up, BOCA, "do now", etc.) slides related to high school geometry coursework. This download includes a PowerPoint version of all questions and their answers, a set of PNG images to be inserted into your own slides (personal use, only), and a PDF printable quarter-page version of each question that may be distributed to students and taped into an interactive notebook.Includes the following sets of Bell Ringers:Unit 1: In