The importance of cognitive skills in human learning and reasoning has grown progressively throughout the years. This motivates the search for a knowledge representation that supports the development of a computational algorithm that performs as well as instructs such cognitive skills. Cognitive skills can be broadly divided into two types; specific and generic cognitive skills. EpiList I is an ITS that develops generic cognitive skills namely classification, generalization, and comparison skills. However, EpiList I develops the skills implicitly in the tutorials that explicitly tutors the student on the domain knowledge. This is a major weakness of EpiList I in developing cognitive skills; namely: classification, generalization and comparison. EpiList II incorporates explicit instructions to develop the cognitive skills in EpiList I. The explicit instructions in EpiList II monitor, tutor, and assess the student's competency in the cognitive skills. The explicit instruction is equivalent to a closed-loop system.