MindBridge Math Mastery

Proportional Reasoning Intervention System (Grades 5–8) Students struggling with ratios are rarely struggling because they “can’t do math.” They are struggling because multiplicative reasoning was never fully constructed. This complete diagnostic and instructional intervention rebuilds proportional reasoning from the inside out — before formal proportion procedures are introduced. Rather than relying on cross-multiplication shortcuts, this system develops: ✔ Scale factor fluency ✔ Strategic u

Struggling with students who can get an answer… but don’t actually understand ratios and proportions? You’re not alone—and this is exactly where things break down. These Error Analysis Cards are designed to help students analyze, explain, and correct common proportional reasoning mistakes, so you can target misconceptions instead of reteaching the same skill over and over. Instead of solving problems, students step into the role of a mathematician: They evaluate thinking, defend their reason