Contemporary early childhood experts, via their major professional organization, the National Association for the education of young children (NAEYC), have adopted a set of guidelines for "developmentally appropriate practice" (DAP) in kindergartens. These guidelines, based on child development research, contrast sharply with a contrary educational movement for increased formal "academic" programming for young children. The primary purpose of this study was to survey the beliefs and practices of kindergarten teachers in Massachusetts, and to examine the congruence of those beliefs with the set of nationally proposed guidelines. A second purpose was to examine the relationship between the beliefs and practices reported and selected professional development variables. A questionnaire designed by a Louisiana group (Charlesworth et al., 1991) and based on the NAEYC guidelines was used. In addition, an author-designed set of questions on key demographic and professional development variables was included. Surveys were mailed to a random sample of 150 elementary schools in Massachusetts. One hundred twenty six teachers responded, representing 102 schools for an overall school return rate of 68%. Results indicated that Massachusetts teachers tend to follow the NAEYC guidelines for developmentally appropriate practice. Correlations between the Teacher Belief Scale and the Instructional Activities Scale (r =.6225, p,.0001) indicate that teachers in Massachusetts generally report using practices that are congruent with their beliefs. Significant positive relationships were found between teachers with advanced college training and both of the Teacher Questionnaire Scales. The professional development activities most frequently listed as valuable to Massachusetts kindergarten teachers included college courses, whole language workshops, Math Their Way workshops, DAP seminars, the Lesley College Kindergarten Conference and inclusion workshops. In further analysis, the sample was divided into thirds based on the total DAP scale scores. Those with high DAP scores differed from those with low DAP scores in the amount and type of professional development activities. The results were discussed with respect to the effectiveness of specific professional development activities.