This paper presents a model for projecting the need for special education teachers which incorporates key elements of a market-based supply/demand model. The model provides equations to predict the supply of both certified and uncertified special education teachers. It involves the following supply factors: current certified employed teacher supply; attrition rate; initial attrition rate; current uncertified employed teacher supply; number of graduating certified teachers; and number of returning teachers. Demand factors included in the model are prevalence of each disability and required teacher student ratios. (DB)