The traditional learning style theory is being used in the development of e-learning materials progressively. Usually the process of working with learning styles begins with the development of tests or questionnaires that are focus on determining the preferences of students to learn, and then prepare the material according to them. But once the content is implemented there is no tool to measure or estimate if it complies with the desired learning styles. We use a different approach and in this paper we perform the evaluation of existing pedagogical materials in order to determine the dominant learning style theory if there is any. Then the experimental result shows the classification of all the contents