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Achievement Effects of Four Early Elementary School Math Curricula

NCEE 2009-4052
February 2009

Number of Cohort-One Schools, Classrooms, and Students, in Total and by Curriculum


    Curriculum
  All Investigations Math Expressions Saxon SFAW
Schools 39 10 9 9 11
Classrooms 131 33 31 31 36
Average # of classrooms/school 3.4 3.3 3.4 3.4 3.3
Students Both Fall and Spring Tested 1309 332 314 304 359
Average # of students/classroom 10 10 10 10 10