The Nongraded Primary Learning Communities Program (NPLCP) was introduced at the beginning of the 1990-91 school year in three Houston Independent School District elementary schools. This evaluation describes the implementation of the NPLCP; examines the effect of the NPLCP on students' standardized achievement test scores; and evaluates teacher opinion of the NPLCP. There were no differences of attendance rates of program students and students in a comparison group. While most of the teachers thought that the nongraded approach was more developmentally appropriate than the approach used in the graded classroom, they expressed reservations about the quality of the class management and individualized instruction training that they received. The teacher survey form is appended. Contains 7 references. (LB)