Yes, in many schools, students are sorted—either by choice or steered into courses that are more challenging or less challenging, according to students’ abilities, interests, and goals. Yes, teachers who have an entire class full of highly motivated, intelligent, hard working students can cover more subject material than a class with unmotivated students or those with additional challenges. Teachers are trained to do that as well, and to get students who need extra help the help they need.FFS, more than 50 years ago, students were paired up to help students learn. College students form study groups on their own. Students who struggle can make use of the many options for extra help.