Cognitive Load Theory was developed by John Sweller & Chandler. "Cognitive load" relates to the amount of information that working memory can hold at one time. Sweller said that, since working memory has a limited capacity, instructional methods should avoid overloading it with additional activities that don't directly contribute to learning. Cognitive Load Theory also shows us that working memory can be extended in two ways. First, the mind processes visual and auditory information separately. According to Sweller, Van Merrienboer, and Paas there are three types of cognitive load: intrinsic, extraneous, and germane.