This is a really good overview of cognitive load theory and an especially cogent criticism of its application in learning. Not to be missed. "The major objection to Cognitive Load Theory is not, therefore, that it is wrong – but that is it a distraction from more important aspects of the learning process... Cognitive load will make some difference to problem solving but what really matters is whether or not someone cares about solving the problem." Quite so. There's more; read the whole article.