“SRA Connecting Math Concepts: Comprehensive Edition has proven field results for Tier 1 and Tier 3 at-risk students. The program provides explicit, systematic, intensive instruction to: Introduce key concepts clearly and carefully to accelerate student progress — Teach students to connect skills and “big idea” concepts — Monitor each student’s progress daily to differentiate instruction — Offer online activities to reinforce students’ mastery — Use explicit strategies that incorporate oral and written responses.”–Publisher.