Students frequently have difficulty determining whether a given real-life situation is best modeled as a linear relationship or as an exponential relationship. One root of such difficulty is the lack of deep understanding of the very concept of "rate of change." The authors will provide a lesson that allows students to reveal their misconceptions…

Affirmative action, a controversial topic about which students have many misconceptions, lends itself especially well to a sociological analysis. This paper describes an approach to teaching that: (1) informs students of different affirmative action programs; (2) gives them the opportunity to apply and integrate a variety of concepts and research…