This is the second of two essays exploring key theories – cognitive load theory and constructivism – underlying teaching methods used today. Constructivism is an educational philosophy that deems experience as the best way to acquire knowledge. We truly understand something – according to a constructivist – when we filter it through our senses and interactions. We can only understand the idea of “blue” if we have vision (and if we aren’t colour blind). Constructivism is an education philosophy,.