This article proposes a visual and quantitative representation of TPACK that will help teachers better understand the TPACK framework and track their growth in the knowledge domains over time. The authors found that many students used “TPACK” to refer to both the knowledge domain and the overall model in their reflections. While this improper use of terminology could be construed as a lack of understanding of TPACK, they believe this is another consequence of the video script, and not of the model. A common theme from the reflections gathered from treatment group A was that the TPACK radar diagram model was about growth and improvement.

This study analyzes the association between teachers’ self-efficacy beliefs in educational Internet use and the perception levels of their technological pedagogical content knowledge (TPACK). The findings show statistically significant relationships among the knowledge domains in technology, pedagogy, content, and their intersections. The findings show all knowledge types contained in the TPACK model are significantly and strongly related to the self-efficacy beliefs in educational Internet use. The findings indicate that teachers who understand TPACK will have higher self-efficacy toward Internet use and therefore better integration habits around using the Internet. The results clearly show that better TPACK knowledge is correlated with higher self-efficacy in educational Internet use.

This study examines how prospective teachers’ subject knowledge influences their approach to teaching the topic of area. The strengths and limitations of the participants' subject knowledge are examined, in relation to their selection of teaching activities. The results suggest connections between these strengths and limitations, in relation to espoused teaching activities and pedagogical orientations.

This study examined whether and how an on-site and research–teacher community of practice model for professional development addressed challenges to classroom practices in a Head Start program. The findings revealed several challenges to classroom practice that aligned with previous research: existing practices did not always cohere with research-based practice, lack of planning between the lead and assistant teachers, and high teacher turnover. The authors suggest recommendations for establishing an on-site teacher-researcher community of practice model for professional development.

This article describes the ways opportunities and constraints in online mathematics teacher education (OMTE) and the authors' view of learning encouraged a deeper consideration of the role of environment in their teaching practice. Central to this discussion are the authors' values and the understandings mathematics teacher educators (MTEs) bring to OMTE and the conflicts between understandings of the online environment and views of learning that undergirded the instructional activities created. This article focuses on the MTEs’ development as teachers in online environments.