ClassroomEvaluate & SampleResearchMath HMH Research Math Core Math Products Back to main Grades K–8 review the reports Grades K–6 review the reports Grades K–8 review the research Grades K–12 see how Saxon works Grades 6–12 review the field test Grades 9–12 read the case study Grades K–8 review the research Math Intervention Products Grades 5–12+ see the results Grades 1–5 review the research Grades 2–9+ review the research K–Algebra II read the professional papers