Identifying major trends related to the supply and demand for teachers in Michigan provides the purpose for this study. The data was gathered primarily from the Professional Personnel Register compiled annually by the Teacher Education and Professional Service Division of the Michigan Department of Education. The data provides empirical evidence of the attrition of teaching personnel who have graduated from various institutions. It also provides a basis for estimating the extent to which teachers who leave the public schools return to teaching at a later date. Factors examined which influence the supply and demand of teachers include (1) birth rate and enrollment, (2) newly certified teachers and the increasing number of teachers, and (3) attrition rate. The study also highlights the descriptive characteristics of Michigan teachers and analyzes employment trends by curriculum. (Tables and figures are provided.) (JMF)