Spot the Glitch: 4th Grade Math Warm-Ups & Spiral Review | Error Analysis & Test Prep Make math review meaningful, engaging, and discussion-driven with Spot the Glitch — a high-impact warm-up routine that builds deep mathematical thinking through error analysis. Perfect for 4th grade math spiral review, daily warm-ups, math centers, test prep, and state testing review. Students examine four robot solutions, identify the mistake, and justify their reasoning using math vocabulary and accountable