Since 1969, Toronto's Metropolitan Separate School Board has been rewarding additional monies to "Special Needs" schools within its jurisdiction in the hope of raising educational opportunity in those schools to a more equitable level. The attempt to arrive at a fair system for determining which schools should receive such assistance led in 1974 to a "special need" scale consisting of five basic measures (including mathematics scores, school size, and the number of students from one-parent homes). Although this scale was used for several years, school-based committee members soon demanded that the unit of measure be changed from the school to the individual students. In 1980, the school mean score previously used for the calculation of special need schools was replaced by an individual mean score based on indexes of social context, school context, and student achievement. Schools selected according to these factors for the "Special Needs List" are subsequently arranged into three categories reflecting greater and lesser degrees of need. To help resolve the perennial problem of special need schools selection, a simulation model is needed that would provide a view of various futures within these schools by integrating a Score Generation Model with a Resources Appropriations Model. (JBM)