Understanding 3-D: Generating Diagrams From 3-D Models Improves Diagrammatic Reasoning

• In Event: Modeling for Understanding and Reasoning

Abstract

STEM disciplines commonly illustrate 3D relationships in diagrams. Does generating a diagram of a 3D model facilitate students understanding of diagrams that convey 3D spatial relations? We hypothesized that sketching a diagram aligns the 3D structure in the world with spatial structures in a diagram. Sketching creates a spatial analogy. Generating diagrams predicating the internal structure of a 3D model led to greater improvement in diagram understanding than visualizing the interior of the model but not sketching a diagram. Additionally, we found a predictive relationship between diagram accuracy and improvement. Results suggest that sketching facilitates analogical mapping and are discussed in the context of teaching students to interpret diagrams that convey complex 3D information.

Authors

• Kristin Michod Gagnier, Temple University

• Kinnari Atit, Temple University

• Carol Ormand, Carleton College Northfield

• Thomas Shipley, Temple University