“Zeldenrust” : A Mathematical Game-Based Learning Environment for Prevocational Students

In this contribution, we present a game-based learning environment for 12–16-year-old vocational students in which they can practice proportional reasoning problems. The learning content and goals, as well as the specific game features are discussed. We can conclude that developing a serious game implies many choices and decisions led by theoretical foundations, as well as by practical limitations and pragmatic considerations.