CASTeL, the Centre for the Advancement of STEM Teaching and Learning is multidisciplinary research team focused on enhancing science and mathematics education at all educational levels, supported by evidence-based research and contributing to international good practice.  CASTeL members, comprising of scientists, mathematicians and educationalists from Dublin City University, lead and participate in formal and informal STEM education projects, nationally and internationally, which are focussed on inquiry based science teaching, learning and assessment.