Certain secondary school subjects, such as geography, contain topics which are based on mathematical concepts. However, some geography teachers either fail to recognize this connection or choose to ignore it when they teach. Instead, they present the subject matter as a collection of facts, which need to be memorized and reproduced by the pupils. In order to change the "classical" teaching paradigm and motivate both the teachers and the pupils to actively engage in teaching and learning through real world examples, we created a set of exercises related to the development of map skills, and taught the students of geography to implement them in GeoGebra.