No, we do not. Having a solid mix of students across a range of abilities creates a healthy competitiveness needed in the classroom. Furthermore, a mixed-skills class encourages the lower-level students to grade up, and the high-level students to improve through the demonstration of knowledge – a highly productive process that helps to cement information in the brain. All students should be put through a curriculum that advances from the basic level to an advanced one to ensure that skills are learned properly.