The present study focus on the adoption and use of Information and Communication Technology (ICT) by public schools in the State of Rio de Janeiro, and is also part of the research programme: Quality in Distance Learning Education: a longitudinal research with teachers in professional development training programmes of the Federal Government. A case study on the lato sensu post-graduation course Tecnologias em Educação (2006-2013). The main objective of this dissertation is to investigate the factors related to the adoption and use of ICT in Rio de Janeiro s state public schools - how often and how are digital technologies being used in the classroom. The first stage of this study included the analysis of the course participants profile and their Final Coursework Assignment. The second stage of this research included the development of an online questionnaire which was then sent and completed by the teachers. The main objective of the questionnaire was to verify the continuation of the described classroom experiences (either modified or not), and to verify if the proposed action plans were put into practice. The undertaken analysis is based on the phenomenology and Habermas theory which points to the discussion of the world of life and to the theory of questioning The results show that ICT is increasingly being incorporated into the reality of public schools in the state of Rio de Janeiro, increasingly regular and diversified manner.