In 1988, Australian educational psychologist and academic John Sweller, published the piece Cognitive Load During Problem Solving: Effects on Learning. Thirty years later and it’s the go-to resource for teachers wanting to know more about retrieval practice, how memory is shaped and of course, cognitive load theory.
In the opening page of his paper, Sweller writes, “that contrary to current practice and many cognitive theories, some forms of problem-solving interfere with learning.”