What Works ClearingHouse™ Intervention Report

The What Works Clearinghouse (WWC) reviewed 34 eligible studies that investigated the effects of Everyday Mathematics® on mathematics achievement for primary students. An additional 58 studies were identified but do not meet WWC eligibility criteria for review in this topic area. Citations for all 92 studies are in the References section, which begins on p. 5. One study (Waite, 2000) uses a quasi-experimental design that meets WWC group design standards with reservations. The study reported a statistically significant positive effect of the program on math achievement measured by the Texas Assessment of Academic Skills test.