This document provides tips for using a PowerPoint presentation on gastric surgeries: 1. The presentation can be freely downloaded, edited, and modified. It includes some blank slides for discussion. 2. The author recommends showing blank slides first to ask students what they know about each topic, then showing the content slide. 3. This "active learning" approach should be repeated for revisions to reinforce learning. 4. The presentation is also useful for self-study. It includes notes for the bibliography.