When Memorization Gets in the Way of Learning

"What separates memorization from learning is a sense of meaning. When you memorize a fact, it's arbitrary, interchangeable--it makes no difference to you whether sine of π/2 is one, zero, or a million. But when you learn a fact, it's bound to others by a web of logic. It could be no other way." 

When Memorization Gets in the Way of Learning by Ben Orlin.