PERC 2025 Abstract Detail Page
Previous Page | New Search | Browse All
| Abstract Title: | Multi-semester investigation of introductory student difficulties interpreting electric field diagrams |
|---|---|
| Abstract Type: | Contributed Poster Presentation |
| Abstract: | The effects of visually modifying traditional electric field diagrams on student interpretation were studied over nine semesters. Electric field diagrams were modified with variations in line thickness, line continuity, and arrow shape to indicate the magnitude and direction of the electric field and the results on student correctness were compared with traditional diagrams drawn with a uniform line thickness and color. The modifications were consistent with theories of visual attention and grounded cognition, to communicate the electric field strength and direction using the students' ability to perceive line variations and arrow styles. Students were randomly assigned traditional or modified diagrams and asked to rank electric field strength and direction. Results show correctness gains ranking magnitude of 12.3% and gains direction 7% for using the modified diagrams. Modified diagrams yielded overall correctness gains of 10% over the traditional diagrams. Results from randomizing presentation order diagrams and question modifications will be presented. |
| Session Time: | Poster Session A |
| Poster Number: | A-152 |
Author/Organizer Information | |
| Primary Contact: |
Raymond Zich Illinois State University Normal, IL 61790 |
