Although many studies have investigated students' perspectives towards Content and Language Integrated Learning (CLIL), few studies have actively involved learners when creating research-based materials. The scarcity of such studies also stems from the limited number of research projects that operationalize scientific insights for classroom…

One of the main aims of diverse education systems is the development of key competences to improve citizens' capacity for lifelong learning. However, some authors have signalled the challenge their measurement entails, among them the Learning to Learn (LtL) competence, which has also been shown to be complex to define and is under research. With a…