Building Interdisciplinary Bridges in Higher Education: Social Innovation in STEM Education for Grand Challenges

Addressing grand challenges such as climate change and inequality requires more than technical solutions - it demands socially innovative approaches that transcend disciplinary boundaries. This paper examines the role of interdisciplinary collaboration in higher education STEM fields in fostering the development of social innovations. Drawing on thematic analysis of reflection papers written by STEM students enrolled in a cross-university, problem-based learning (PBL) course on sustainability, transformation and social innovation, the study explores students' experiences with interdisciplinary teamwork. Findings reveal that students initially faced significant challenges - especially in communication and coordination - but ultimately perceived these as valuable learning opportunities. The interdisciplinary setting enhanced creativity, broadened perspectives, and resulted in more holistic social innovations. The course also fostered essential competencies such as communication, collaboration, and systems thinking, with some students reporting increased interest in entrepreneurial endeavors. These results highlight the potential of interdisciplinary and socially oriented education in STEM fields, underscoring the need for curricular reform to better prepare students for addressing complex grand challenges.