What is Meta-Cognitive Dimension

Is it possible to exploit the potentialities of Web 2.0 tools and the advantages of knowledge sharing to guide students towards effective learning competence and autonomy? This chapter is aimed at pointing out the achievements and the drawbacks of the use of Wikipedia, integrated with traditional classroom teaching through the illustration of some practical examples from all grades of school and university. A direct experience in an Italian secondary high school is described as well, whose aim has been to promote critical thinking, stimulate cooperative e-learning, and the respect of the intellectual property, giving more efficacy to autonomous studying.