Do your students jump straight into solving math problems without really thinking them through?These 5-minute math reasoning warm-ups and bell ringers help students in grades 3–5 explain, justify, and think through math ideas before solving, so they slow down, make better decisions, and communicate their reasoning more clearly. Use one slide when you need it, or use them consistently as a short routine. Each exercise is designed to be used independently, with no prep and no required sequenc