Riordan and Noyce (2001) report that schools that used the Connected Mathematics Project (CMP) for two to three years had greater gains in math achievement overall than those in the comparison group. Riordan and Noyce do not report whether this difference was statistically significant. However, t tests calculated by the WWC using data provided by…

This report summarizes evidence from studies that estimate the effects of interventions for improving the mathematics proficiency of middle school students and that meet What Works Clearinghouse (WWC) evidence standards, usually with some reservations.

Brooks (1999) compared algebra achievement of students enrolled in the intervention group (I CAN Learn[R] classes) to that of students enrolled in the comparison group (traditional classes) at pretest, midyear, and posttest. Brooks found that students in the I CAN Learn[R] classes achieved higher scores in algebra than students in traditional…

Schneider found no statistically significant differences between the intervention and comparison groups on the school-level Texas Assessment of Academic Skills (TAAS) analyzed in the study. The findings may have been affected by only three schools implementing more than one-third of the total math problems in each year and grade. In addition, the…

Brooks (1999) compared algebra achievement of students enrolled in the intervention group (I CAN Learn[R] classes) to that of students enrolled in the comparison group (traditional classes) at pretest, midyear, and posttest. Brooks found that students in the I CAN Learn[R] classes achieved higher scores in algebra than students in traditional…

This evaluation was designed to compare student achievement scores of students enrolled in Saxon Algebra 1/2 classrooms (intervention group) with students enrolled in Scott-Foresman Mathematics classrooms (comparison group). Crawford and Raia conducted three analyses, but this study report focuses on the strongest analysis of the three and…

In this study, Ridgway et al. found mixed results, depending on the assessment test used. With the Balanced Assessment (BA) test, positive significant differences were found between the Connected Mathematics Project (CMP) students and non-CMP students in grades 6, 7, and 8. The results for the Iowa Test of Basic Skills (ITBS) were less favorable…

The "Connected Mathematics Project" is a problem-centered mathematics curriculum designed to help students in grades 6 to 8 develop mathematical knowledge, understanding, and skills. It contains eight student units for each grade level and covers five content strands: number and operations, geometry, measurement, data analysis and…

There was no statistically significant difference in student performance between students receiving the Expert Mathematician curriculum and those in the control groups. Baker reported negligible differences between the Expert Mathematician intervention and control groups. The outcome measure is sufficiently reliable, based on the author's report…

Schneider found no statistically significant differences between the intervention and comparison groups on the school-level Texas Assessment of Academic Skills (TAAS) analyzed in the study. The findings may have been affected by only three schools implementing more than one-third of the total math problems in each year and grade. In addition, the…