Background. The pandemic showed that the use of new teaching methodologies supported by Information and Communication Technologies (ICT) can improve students' teaching-learning processes and the acquisition of competences. Aims. The aim of this study was to analyse the socio-demographic characteristics of teachers, which influence the adoption of ICT in the application of active methodologies in their classes. Methods. Using a non-experimental, descriptive and correlational quantitative design, a Likert-scale survey was administered to 556 high school teachers from different schools in Ecuador. The information collected was used to fit a generalised linear model that responded to the research objective. Results. The results showed a strong positive relationship and effect between teachers' self-perception of their innovative capacity and their use of new technologies. However, their age and years of experience turned out to have a negative effect on these variables. In addition, significant differences were found in the use of digital resources between teachers in public and private schools, with more use of these tools in private schools. Conclusions. Teachers must continue to be trained in the application of these active methodologies and in the use of ICT as a means of technological transformation and progress towards quality education.