Analyzing Problem Solving Using Math in Physics: Epistemological Framing via Warrants

TL;DR

This paper investigates how physics students' perceptions of appropriate mathematical reasoning, called epistemological framing, influence their problem-solving approaches and disagreements, using a warrant classification system to analyze their reasoning.

Contribution

It introduces a system for classifying warrants in physics students' reasoning, providing tangible evidence of their epistemological framing during problem solving.

Findings

Students often get stuck using limited reasoning skills.

Disagreements reveal underlying epistemological frames.

Warrant analysis helps identify students' reasoning approaches.

Abstract

Developing expertise in physics entails learning to use mathematics effectively and efficiently as applied to the context of physical situations. Doing so involves coordinating a variety of concepts and skills including mathematical processing, computation, blending ancillary information with the math, and reading out physical implications from the math and vice versa. From videotaped observations of intermediate level students solving problems in groups, we note that students often "get stuck" using a limited group of skills or reasoning and fail to notice that a different set of tools (which they possess and know how to use effectively) could quickly and easily solve their problem. We refer to a student's perception/judgment of the kind of knowledge that is appropriate to bring to bear in a particular situation as epistemological framing. Although epistemological framing is often unstated (and even unconscious), in group problem solving situations students sometimes get into disagreements about how to progress. During these disagreements, they bring forth explicit reasons or warrants in support of their point of view. For the context of mathematics use in physics problem solving, we present a system for classifying physics students' warrants. This warrant analysis offers tangible evidence of their epistemological framing.