This research is part of the Hiprest network of training and research in language teaching. His research programme, based on the theories of the activity, analyses the student-teacher’s experience during the Practicum, with a dual purpose: promote the training of future teachers while investigating the training process generated by the scheme. Following a training methodology – innovative research based on video-training, three classroom recordings and so many self-confrontation interviews were analysed for each student with a train-researcher. In these, future teachers observe and analyse their own teaching action from ‘outside’, leading to the emergence of aspects, attitudes and techniques that would allow them to improve their activity in similar learning situations. Research highlights phenomena that characterise the training process, such as analytical immersion and virtual typing. Their knowledge will make it possible to define new training content specifically aimed at improving teaching practice and the professional development of the novel