The authors provide a brief description of Teacher Cost Models--a computerized mathematical model that allows educational officials, using a specified set of input information, to forecast the provincial (or regional) teacher wage-bill at the operating level (1-year) and multi-year planning level (five years). The model has been successfully implemented for the province of Ontario. All software systems and technical documentation related to its operation have been completed. The paper discusses the conceptualization and design of the model and lists some of its more significant applications. There follows a brief discussion of the requirements necessary for implementation in other provinces or similar educational jurisdictions. A detailed sample problem simulating various given policy/environment conditions is used for illustration. (Authors)