We used an eye-tracking method to investigate students' approaches to solving a physics task using various representations. Eight upper-secondary school students from Finland took part in the study.
We found that students who preferred either the text or graph representations watched the options differently, but they used both representations to be sure of their solution. Transitions between text and graph alternatives were different for students preferring either text or graph representations.
Interviews revealed typical misconceptions about the concept of force. Implications for physics instruction are presented.