Technology Enhanced Learning in Mathematics: the cross-experimentation approach adopted by the TELMA European Research Team

This contribution deals with the work of TELMA, a European Research Team of the Kaleidoscope Network of Excellence. In particular the ‘cross-experimentation’ project is presented. Such project was developed by TELMA to understand the role played by theoretical frameworks in setting up experiments using Interactive Learning Environments (ILE) for mathematics. The paper focuses on the methodological dimension of this project.