This module cluster is one of several developed for the Camden Teacher Corps project. The general objectives are to enable students to a) define basic operant terms, b) state basic operant principles, c) read operant measurement charts, and d) use operant principles and measurement in elementary classrooms with both social and academic behaviors. The module cluster is designed to be used by students in cooperation with the instruction. Each module is divided into the following sections: statement of objective, prerequisite, preassessment, instructional activities, postassessment, and remediation. (Lists of related books, journals, films, and programs are appended.) (JA)