This paper describes a simulation activity, which was coupled with Confluent/Gestalt meta-processing, that was designed to address the affective component of a mathematics procedures class for preservice teachers. The activity consisted of an explanation and demonstration for teacher educators. It is argued that a reconstruction of disposition towards mathematics is an essential component of effective professional education programs. In order for student teachers to acquire a positive disposition towards mathematical thinking, instructors must help these students to deconstruct their prior learning, which may have negatively impacted their attitudes toward mathematics, and to reconstruct a new understanding of mathematical processes. In the simulation which is presented, participants experience an intervention, characterized by Confluent/Gestalt meta-processing, that can be used with student teachers in a mathematics methods class. The intervention is designed to access the powerful affective inhibitors to performance. Confluent education is an instructional model, in which the learner plays an active role, based on the premise that all learning is accomplished by an affective as well as a cognitive component. Meta-processing is a form of reflective thinking that occurs in the intervention, as participants examine their affective responses. (IAH)