In this dissertation I analyze the process of crafting definitions whose purpose is classification. The context I examine is undergraduate upper-division physical science majors defining and naming sub-categories of a physical phenomenon in the context of a design task over an extended period of time. The goal of the design task is one of…

Examines the use of different terms in chemistry. Addresses the use of imprecise, uninformative, inappropriate, and wrong terms, as well as the lack of clarity in imprecise or uninformative names for methods of chemical analysis. Provides lists of examples of both types of terminology problems. (TW)