Designed to contribute to the growing effort to teach critical thinking skills, this guide provides teachers with (1) a simple, usable set of definitions for recall, analysis, comparison, inference, and evaluation; (2) brief explanations of three common forms of classroom assessment (oral questioning during instruction, paper and pencil objective test items, and performance assessment); and (3) a planning strategy for crossing levels of thinking skills with forms of classroom assessment in a way that uses assessment to promote student skill in higher level cognitive operations. For purposes of illustration, the guide includes a range of examples of assessments for all grade levels covering concepts taught in science, social studies, and language arts (composition and literature). The guide also provides space for users to fill in examples relevant to their particular subject areas. (HOD)