Eye-tracker, pen-tablet, students? strategies, physics tasks? solving, human-technology interaction.

The present study investigated and compared students´ strategies during solving physics tasks. The physics tasks were prepared as part of the project 'NATURE'. To understand how students think during writing tests were used Eye-trackers and pen-tablets. Teachers can analyze outputs and they think about students´ strategies. Although there are many quantitative studies about solving physics tasks, little research has focused on students´ strategies 'step by step'. The present study wants to answer typical teachers´ questions: What students do during 45 minutes? How do they skip tasks? How long do they solve the part of the test? Why do they solve only a few tasks although they are working the whole 45 minutes?