attention map, eye-tracker, function, mathematics

Although the concept of a function is being taught in mathematics since the elementary school, its understanding is still problematic for university students. The Department of Mathematics at the Faculty of Science in the University of Ostrava provides a course of mathematics focused on the concept of a function and we are dealing with two questions – how to teach it effectively with the expected outcomes and what is incomprehensible for students. We used the eye-tracker technology to better understand students' thinking to find points that are crucial to the correct or wrong solution of the examples.