Stressing that instructional behaviors, programs, and materials developed for inservice education must be systematic, stimulating, psychologically sound, and organized, this document provides a guide to the development of inservice instructional packages. It includes extensive criteria for evaluating inservice instructional packages under the following headings: (1) organization, layout, and format; (2) rationale; (3) objectives; (4) preassessment (evaluation prior to use in instruction); (5) instruction (evaluation as a tool for facilitating effective instruction); (6) self-evaluation (helps participant assess needs); and (7) overall evaluation. (DS)