PETEL – M is part of the departmental PETEL program and as such it is focused on personalized teaching and learning and on classroom-level activity. The characteristic feature of PETEL-M is that it does not aim at covering the entire secondary-school mathematics curriculum but develops a rich collection of curriculum-related activities having the potential to facilitate skills and aspects of school mathematics that are known as particularly important (e.g., explorations, advanced problem solving, creativity). to PETEL website.