Research stresses a need for more contextually nuanced urban teacher preparation programs that explore racially oppressive structures in society. This article presents a case study of five aspiring teachers who participated as mentors in a 2-year program for ninth grade students at Riverview Academy, an urban school. This study uses the…

We have developed a teaching-learning sequence (TLS) on friction based on a preliminary study involving three dimensions: an analysis of didactic research on the topic, an overview of usual approaches, and a critical analysis of the subject, considered also in its historical development. We found that mostly the usual presentations do not take…