Houghton Mifflin Mathematics

Houghton Mifflin Mathematics was found to have no discernible effects on mathematics achievement.

Houghton Mifflin Mathematics is a core curriculum for kindergarten through grade 6 students at all ability levels. According to its developer, Houghton Mifflin Mathematics emphasizes the five content strands and processes recommended by the National Council of Teachers of Mathematics Standards. At each grade level the program focuses on basic skills development, problem solving, and vocabulary expansion to help students master key math concepts. The program incorporates assessments—including lesson-level interventions to meet the needs of all learners—to monitor students' progress. Students practice daily math lessons through instructional software, enrichment worksheets, manipulatives, and workbooks in addition to student textbooks.

Two studies of Houghton Mifflin Mathematics met What Works Clearinghouse (WWC) evidence standards with reservations. The two studies included students in grades 2-5 from a range of socioeconomic backgrounds, racial groups, and math performance levels. Students came from more than 800 schools in urban, suburban, and rural communities in California, Illinois, Missouri, Wisconsin, New Jersey, New York, and South Carolina.

The WWC considers the extent of evidence for Houghton Mifflin Mathematics to be medium to large for math achievement.