Advanced digital competence: Learning strategies require the confident and critical use of ICT and an informed and critical attitude towards interactive media and digital information. Adolescents especially often lack these skills. Teachers need assistance in supplying their students with the necessary advanced digital skills to safely use social media environments. Special needs: Though Learning supports different learning paces and cognitive styles, thus generally empowering learners, it can also create and increase difficulties for students with physical or cognitive disabilities, or special learning needs. For example, text-based collaboration and knowledge building activities with wikis and blogs can.