USING REMOTE SENSING DATA IN THE CLASSROOM TO EXPLORE THE DYNAMICS OF EARTH SURFACE SYSTEMS: EXPLORATION, INQUIRY, AND DISCOVERY

Study of the Earth’s surface using remote sensing data can provide important information on processes of the Earth surface system and how they are influenced by global- or regional-scale processes. The purpose of this research was to assess the effectiveness of using exploration of remote sensing data in an upper-level undergraduate sedimentary geology course to enhance student understanding of earth surface system dynamics.

To evaluate the effectiveness of the remote sensing module, the class split into two groups. Half the class completed a lab module that used Landsat and Ikonos remote sensing data from the tidal flats of Andros Island in the Bahamas. This module aided student’s exploration by asking questions about the data, geomorphic characteristics, different types of vegetation and surface cover for two different areas. They were then asked to compare and contrast the patterns in two areas of the tidal flat and to hypothesize on the geologic evolution of the system based on their observations. They were actively encouraged to pose and discuss possible interpretations of their observations. Next, the entire class had a ‘traditional’ lecture on the tidal flats and all students were given a series of questions to evaluate their understanding.

Students who completed the remote sensing module performed 30% better on the assessment than those that did not and had greater cognizance of geomorphic and sedimentologic patterns. Student comments on this exercise included “these data clarified my comprehension … [and] made it easier to visualize the geologic processes” and “we were able to … actually use our own brainpower to figure out what geomorphic processes were occurring or had occurred. I would love for every lab to be this educational!” Active participation in the discovery process clearly enhanced student’s learning and enthusiasm.