This research studies the efficiency of Flipped Classroom (FC) and Challenge-Based Learning (CBL) as an innovative methodology to facilitate the learning of concepts involving sustainability and the circular economy by higher education students. This study, conducted as part of various innovative education projects, was applied in different…

Metaphors can be powerful teaching and learning tools which may help us to understand novel, complex or abstract concepts using familiar language and thought structures. Academics routinely use metaphors in their university teaching to explain new or difficult ideas to students. In this article the authors argue that tertiary teachers' metaphors…