Some people believe that schools should teach students according to their academic abilities, while others think that it is better to have students with different abilities study together. From my point of view, separation in students’ academic performance is a need due to its benefits that will be explained below. On the one hand, those who support teaching students according to their academic abilities argue that this approach can help students study at their actual levels and therefore have more chances to advance their academic ability. They believe that students who are chosen for the class can better understand the material suitable for their levels and are more likely to succeed academically. Also, studying with those having the same levels will generate a competitive learning environment in which every individual tries their best and moves forward together. In Vietnam, for instance, students in high school for the gifted are always well-known for not only the int...