 Tracking can allow students to receive lessons targeted at their ability for each subject separately, attending lessons set at different levels at the same school.For example, a student at a higher level in math may attend a class with advanced math students, but if at a lower level in English they may be grouped with peers at their level in English.Another positive aspect of tracking is that since it separates students by ability, students' work is only compared to that of similar-ability peers, preventing a possible lowering of their self-esteem that could result from comparisons with the work of higher ability students, or inflating the egos of the high-ability students when compared to low-ability, same-age students.