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National Center for Education Evaluation and Regional Assistance


Achievement Effects of Four Early Elementary School Math Curricula

NCEE 2009-4052
February 2009

Executive Summary

Many U.S. children start school with weak math skills and there are differences between students from different socioeconomic backgrounds—those from poor families lag behind those from affluent ones (Rathburn and West 2004). These differences also grow over time, resulting in substantial differences in math achievement by the time students reach the fourth grade (Lee, Gregg, and Dion 2007).

The federal Title I program provides financial assistance to schools with a high number or percentage of poor children to help all students meet state academic standards. Under the No Child Left Behind Act (NCLB), Title I schools must make adequate yearly progress (AYP) in bringing their students to state-specific targets for proficiency in math and reading. The goal of this provision is to ensure that all students are proficient in math and reading by 2014.

The purpose of this large-scale, national study is to determine whether some early elementary school math curricula are more effective than others at improving student math achievement, thereby providing educators with information that may be useful for making AYP. A small number of curricula dominate elementary math instruction (seven math curricula make up 91 percent of the curricula used by K-2 educators), and the curricula are based on different theories for developing student math skills (Education Market Research 2008). NCLB emphasizes the importance of adopting scientifically-based educational practices; however, there is little rigorous research evidence to support one theory or curriculum over another. This study will help to fill that knowledge gap. The study is sponsored by the Institute of Education Sciences (IES) in the U.S. Department of Education and is being conducted by Mathematica Policy Research, Inc. (MPR) and its subcontractor SRI International (SRI).