The Comprehensive School Mathematics Program (CSMP) is a program of CEMREL, Inc., one of the national educational laboratories, and was funded by the National Institute of Education (NIE). Its major purpose is the development of curriculum materials for grades kindergarten through 6. This volume describes non-test data collected in spring 1980 from CSMP and non-CSMP fifth-grade classes, and includes implementation data as well as teacher and student attitudes. An attempt is made to compare CSMP with non-CSMP groups on these variables. Among the results, it is noted that pupils in CSMP classes liked mathematics less, when compared with other subjects, than non-CSMP classes did, but saw mathematics as more open. Further, CSMP classes liked mathematics more when: 1) teachers gave a higher overall evaluation to the curriculum; 2) supplementing occurred more often; 3) fewer tests were reported by students; and 4) fewer games were reported by students. The non-CSMP classes tended to like mathematics less under these conditions. (MP)