MINT-L4@RWTH is trying to remedy the currently existing shortage of qualified STEM teachers in secondary education. STEM teaching study programmes exhibit a large number of drop-outs, especially in the first semesters of study. MINT-L4@RWTH combines promotion programmes for aspiring STEM teachers, improved information on the existing study programmes and a fitting SelfAssessment before entering university in order to tackle this situation. Additionally, a STEM teacher funding programme, addressed at talented and engaged young people, promotes an image makeover of the teaching profession as an attractive potential field for prospective high school graduates.