This publication discusses a school evaluation model developed by the Center for New Schools (CNS) for use in evaluating Cleveland's New School. Section 1 describes three key principles that underlie the CNS model and discusses the rationale behind each of those principles. The three principles include (1) facilitating community participation in school evaluation, (2) using a formative evaluation approach that encourages school improvement, and (3) using an eclectic multimethod approach to evaluation that employes carefully trained and supervised participant observers. The final section presents a step-by-step outline of the work plan for implementing CNS evaluation model at New School. (JG)