In this paper we describe two episodes of instructional interaction, in which examples are used in order to help students face their misconceptions. We introduce the notions of pivotal example and ...

An alleged counterexample to causal decision theory, put forward by Andy Egan, is studied in some detail. It is argued that Egan rejects the evaluation of causal decision theory on the basis of a ...

A new paper explores community-supported agriculture and its survival in the face of economic globalization. Organic food was once an economic haven for small farms who distributed their goods ...