Changing Student Conceptions of Arid, Urban Watershed Management

Abstract

Despite the central importance of water, few students have the opportunity to study water resources management in secondary education. Even in tertiary education—unless they major in water resources or a closely related field—they are likely to receive only a week or two of instruction about water resources in introductory science courses. Typical instruction in such courses is textbook‐based, with the course instructor lecturing on a broad range of topics. Complicating this, little is known about student preconceptions, which may interfere with—or be used to support—learning. We sought to identify preconceptions in an introductory environmental science course at an urban, research (R1) university in the arid Southwest of the United States. We used a pre/post design to assess student preconceptions about their urban campus watershed and designed a brief, experiential learning exercise. While experiential learning is common in water resources management programs, it is less common in introductory courses. We developed a coding scheme to analyze the pre‐ and post‐test responses; results showed students held normative and non‐normative preconceptions. There was significant growth in students’ conceptual understanding between the pre‐test and post‐test, ( t (33) = −2.25, p < .05), with a small to medium effect size, d = −0.393. This finding supports the use of experiential learning as a means to teach students about water resources, even in an introductory course. Understanding students’ preconceptions of arid, urban watersheds can assist in how to better design curriculum. Such improvements in curricular design can empower students to make better decisions about urban watersheds.