This document analyzes research produced in student teacher theses within two early childhood teacher education programs in Portugal. It finds that most research focused on understanding the impact of teaching strategies or solving practical problems. Studies primarily used observation of student teachers' own practice and had a practical focus on improving teaching. However, the research showed some limitations like a lack of analytical skills and not sufficiently questioning or distancing from practice. The study concludes that further developing teachers' research skills is important to improve the quality of teaching and the status of the teaching profession.