Teachers training teachers will create an exponential growth of educators 3, 9, 27, 71, with each teacher teaching 3 students, who teach more. Therefore, students who have mastered a subject or even a topic within a graded subject at any level will be expected to assist in classrooms aiding others to understand. The primary goal of this is to have everyone as a teacher and a student.
Also, it’s a truth that no subject exists in a vacuum. All sciences, to some degree, overlap, as do all artistic skills and creative abilities.
Overspecialization breeds weaknesses, and a holistic approach can greatly improve the retention of data.