Children should learn to perform a number of intellectual operations such as solving problems efficiently, describing phenomena accurately, and analyzing ideas rigorously. In many classrooms, however, the variety of thinking tasks required of students is limited and may often be restricted to nothing more than recalling memorized information (Davis and Tinsley, 1967; Gallagher and Aschner, 1963). Although the teacher may be unable to control all the intellectual activity occurring among unique individuals in an active learning situation, he can greatly influence the level of thinking by the expectations he establishes for his pupils. In other words, he is likely to get the kind of thinking he asks for. If the teacher is uncertain whether his methodology promotes thinking skills, how might he measure the quality of his instruction? The purpose of this article is to translate a broad objective such as teaching stuGARY MANSON