How should design change, based on the types of knowledge components in the material and the cognitive processes required?

a. Knowledge components have 4 parameters that closely relate to the ACT-R framework. These are the condition, the response, whether it is verbal or non-verbal, and whether it has a rationale. Each combination of these parameters has a set of cognitive processes that it is most beneficial to foster when teaching. (Koedinger, Corbett, & Perfetti, 2012)