Informed by the cultural-historical approach, this phenomenological study examined a group of Chinese EFL (English as a foreign language) teacher educators’ views about the practicum. Longitudinal observations, individual formal interviews and informal conversations were employed to understand the supervisors’ perceptions about the problems arising from the practicum and strategies to enhance it. The results reveal three key problems, including supervisors’ limited involvement, limited support from the university and practicum schools, and interns’ weaknesses. The countermeasures involve the initiative of student teachers and a stable collaborative platform. Implications are drawn from the study about strategies of constructing a coherent activity system with shared objects for university–school partnerships.