The results of this study suggest that the organization of knowledge in learners’ minds is not the same as it is represented in experts’ minds or in the textbooks. As explained by Yalcinalp and Gulbahar (2010), the need for personalization in E-learning by using ontologies is emerging and gaining widespread applications. In this study we showed that more accurate learning paths can be recommended by creating an ontological map for each individual, developed in part by student data. Additional efforts should be spent on improving the recommendation and test modules in order to better assist students by conducting more research studies with larger samples and on wider subject areas.