A comprehensive 20-week intervention curriculum (40 sessions, 2x/week for 45 minutes) designed to master 3-digit place value and single/two-step addition and subtraction word problems with sums and differences between 50 and 100. This program integrates iReady-style bar models, tape diagrams, base-ten representations, self-monitoring checklists, and scheduled progress monitoring every 9th session to ensure 80% accuracy.
