Tracking divides students into different academic ability levels (low, middle, high tracks) in secondary schools. There is debate around whether tracking improves achievement and is equitable. Some research finds tracking improves achievement for higher and middle ability students but not for lower tracks, while other research finds no benefits or disadvantages for any groups. Placement decisions are considered fair when based on academic performance but unfair if other factors like race, gender or socioeconomic status influence placement. Tracking is also considered inequitable as it can limit curriculum access and college opportunities for lower tracks which often have more minority and low-income students. Teachers must consider these issues and their professional responsibility to practice fairness for all students.