Contributions of blended learning training to teacher professional development

The central theme of this study is the analysis of a balanced integrated teaching methodology (face-to-face and virtual, as blended learning) and the extent of its implementation in teacher training, as well as the importance of leadership in planning, supervising and coordinating this process. We began with a systematic review of the literature of the last 15 years (2002-2017) on the Web of Science (WOS), the most highly rated database in the scientific community. We identified 190 studies related to blended learning, professional teaching development and leadership in education. We then selected 163 documents that fell specifically into the educational research category, of which 75 were articles. We further fine-tuned the search by excluding those articles related to research fields other than teachers' professional development, and arrived at 35 articles that fulfilled our preliminary criteria. We reduced the sample to the 24 articles that contained all the features required by our investigation. The results show that blended learning is a valuable training tool that enables teachers to acquire competences and which can aid their professional development; it can also foment collaborative work, augment teachers' technical and didactic skills around technology, pro mote interdisciplinary experiences and help teachers to share innovations, etc., among other potential outcomes.