The paper provides information relevant to the study of the subject "Training and Teaching and Learning Assessment" of the Master of Research in Teaching, Learning and Educational Assessment at the University of Barcelona, designed to discover to what extent the feedback conducted by tutors / as in a 2.0 and with the development of blogs, can help develop personal and professional skills of students through a reflective approach to issues related to the subject, following a process of self-regulation of learning and a strong emphasis on formative assessment.