This chapter describes the implementation of a Project Based Learning (PBL) course in a Bachelor of Education at the University of Namibia, whose aim was to develop student teachers' 21st century skills. The course further offered students a model for applying learner-centered education, which is the recommended pedagogical approach in Namibia. Challenges observed in the course, have been limited opportunities for students to share project products and learning experiences. Also, since students use PBL for learning and not as a pedagogical model, challenges are anticipated in using the approach in their own teaching. Using Communities of Practice, 21st Century Skills framework and Project Based Learning, this chapter proposes a framework for creating learning communities for teachers. Recommending the use of online tools to support mentoring, idea and resource sharing, the framework is envisioned to facilitate the pedagogical application of PBL and teachers' modeling of 21st century skills in practice.