Abstract. An important goal of teacher education (TE) is to improve pre-service teachers' pedagogical content knowledge (PCK), pedagogical knowledge (PK) and content knowledge (CK). It is not always clear what kind of opportunities to learn (OTL) in TE contribute to pre-service teachers' knowledge development. We compared different cohorts (N = 360) in TE, and studied the effects of OTL (PCK, PK, CK, and practical experiences) on pre-service teachers' PCK, PK and CK (in the domain of French as a foreign language). Second and third year students outperformed first year students on PCK, PK and CK (measured through quantitative test instruments). Positive effects of PCK OTL on PCK and PK are found, as well as positive effects of CK OTL on CK.Keywords: Teacher cognition; teacher professional knowledge; pedagogical content knowledge; teacher education; foreign language education.
IntroductionTeachers' professional knowledge is believed to be central to student learning (Connelly, Clandinin, & He, 1997). Teachers' thinking is claimed to be related to their instructional approaches, and as a consequence, studying teacher knowledge is essential (Verloop, van Driel, & Meijer, 2001). Research on teachers' professional knowledge mainly follows the influential work of Shulman (1986;1987), who introduced pedagogical content knowledge (PCK) as the unifying element between general pedagogical knowledge (PK) and content knowledge (CK). Most empirical research on teachers' professional knowledge focuses on the domain of mathematics . In this domain research has shown the importance of PCK and CK for instructional quality and student achievement (Baumert et al., 2010; Kunter et al., 2012). Also PK, which is not related to a specific disciplinary domain, has been shown to positively impact instructional quality (König & Pflanzl, 2016). It is therefore an important task of teacher education (TE) programs to foster pre-service teachers' PCK, PK and CK. Several studies show the impact of theoretical courses in TE on teachers' professional knowledge development, mainly in the domain of mathematics (e.g., Blömeke, Buchholtz, Suhl & Kaiser, 2014). According to Schmidt et al. (2011), the following opportunities to learn (OTL) during TE might impact teachers' professional knowledge: courses on CK, courses on PCK, courses on PK, and practical experiences. However, to date, the specific contribution of each of these four sources of OTL to the development of PCK, PK, and CK remains unclear.The present study focuses on the domain of French as a foreign language in primary TE in Flanders, Belgium. Test instruments are developed to assess PCK, PK and CK in this context. Relying on a crosssectional design, the study aims to investigate (1) whether pre-service teachers in different stages of TE differ in PCK, PK, and CK, and (2) whether specific OTL on PCK, PK, CK and practical experiences have an impact on teachers' professional knowledge. Shulman (1986;1987) defined PCK as "that special amalgam of content and pedagogy that is uniquely the prov...