This study examined the implementation of the seven critical attributes of the primary school curriculum mandated by the Kentucky Education Reform Act (KERA) in a single multi-age primary classroom. The study used a case-study approach over a 16-month period. The seven attributes observed are: (1) developmentally appropriate practices; (2) multi-age and multi-ability classrooms; (3) continuous progress; (4) authentic assessment; (5) qualitative reporting methods; (6) professional teamwork; and (7) positive parental involvement. The classroom observed contained nearly equal numbers of 6-, 7-, and 8-year-olds, with the teacher using a whole-language and student-paced approach to teaching. Weekly observations of the class over the course of the study found that the teacher was actively implementing all seven attributes of the KERA primary curriculum. The observations supported inclusion of an eighth attribute in the Reform Act, the development of social responsibility and student ownership of the educational process. (MDM)