PRESERVICE MATHEMATICS TEACHERS’ CONCEPTIONS OF INTENSIVE QUANTITIES COMMONLY USED TO MODEL GLOBAL WARMING (BILINGUAL PPT)

• In Event: PRESERVICE TEACHER EDUCATION: PROPORTIONAL REASONING AND REAL WORLD CONTEXTS (BILINGUAL PPT)

Description

I report preliminary findings concerning preservice mathematics teachers’ (PSTs) conceptions of three intensive quantities commonly used to model global warming: concentration, energy density, and energy flux density. Six secondary PSTs enrolled in a mathematics education program participated in the study. Each PST completed four tasks conducted in two individual, task-based interviews. Preliminary analysis revealed that PSTs’ conceptions of the quantities depended on two processes: the coordination of the relationships between the intensive quantity and each one of its constituent quantities; and the encapsulation of these relationships in order to conceive these ratios as quantities in their own right.

Author

• Dario Andres Gonzalez, University of Georgia