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Visualization in College Geology Courses: Interactive Visualizations & their Assessment. Stephen Reynolds and Michael Piburn Arizona State University (projects supported by NSF) Thanks: Debbie Leedy, Julia Johnson, Sian Proctor, Paul Morin, Carla McAuliffe, Jim Birk http://reynolds.asu.edu.
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Visualization in College Geology Courses: Interactive Visualizations & their Assessment Stephen Reynolds and Michael Piburn Arizona State University(projects supported by NSF) Thanks: Debbie Leedy, Julia Johnson, Sian Proctor, Paul Morin, Carla McAuliffe, Jim Birk http://reynolds.asu.edu
Visualization Skills and Reading Maps: Layers and Topography
Reading and Interpreting Other Types of Geologic Information
Software Used for Images and Animations • MicroDEM • Read DEMs and generate elevation grayscale images and contour maps • Bryce5 • Build models using grayscale elevation • Blocks or drape maps over topography • Render multiple views for movies • VR Worx • Combined views into QuickTime VR movies
Types of QuickTime Visualizations • QuickTime VR Panorama • Scrollable and zoomable map – tell QuickTime a flat map is a panorama over 5 or 10 degrees • QuickTime VR Object Movie • Matrix of images (rows and columns) • Dragging horizontally moves along row (e.g., spin object, cut into object) • Dragging vertically moves along column(e.g., tilt object, switch data layers)
Research Experiments • Hidden Earth Project: control and experimental groups; spatial test • Influences on how much students learn in lab (groups, TA, etc.) • Topographic strategies/misconceptions • Topographic strategies and memory • Misconceptions about sedimentary environments
Research Experiment • Pretests and post-tests • Paper and computer versions of standard spatial visualization tests • Geospatial test (topography, blocks, sections) • Control and Experimental Group (2 labs each) • Experimental groups got computer modules • Control group got non-computerized equiv. • Results • Gain from pre- to post-test by group and gender • Statistical analysis of data
Use of Computer-Based Visualizations: Painted Canyon • Provide context for rocks, minerals, maps, and reconstructing history
Topo: Rotating/Shading Movie • Students interact with movie and then construct written description of the feature
Group Male Female Total Control 26 18 44 Experimental 22 37 59 Total 48 55 103 Distribution of Subjects by Gender and Group
Results • Improved performance on spatial measures • Transfer to learning in laboratory • Elimination of gender bias • Created really cool stuff that diverse groups can use
Hidden Earth Curriculum • Disembedding • Interaction of layers and topography • Interactive geologic maps • Biosphere 3D site • Time and environments • GeoWall in the classroom • Strategies and mental models with topographic maps
Geologic Environments: How does a beach deposit a rock layer over a wide region.