1) Ability grouping refers to grouping students into classes based on their academic abilities and achievements, such as high, average, and low groups. This is done to better tailor instruction to students' learning needs.
2) There are two main types of ability grouping: between-class, where students of different abilities are separated into different classes, and within-class, where students of varying abilities are grouped for certain subjects or activities within the same class.
3) Proponents argue that ability grouping allows for a faster pace for gifted students, more individualized attention, and increased confidence for struggling students when they are in classes with peers of similar abilities. However, critics argue it can harm low-achieving students