Physics teachers' action-research experience with a teaching module on “Force”

Eight physics teachers from three research schools working in collaboration with the author developed, tried, and evaluated a teaching module on “Force”. The module was designed for students in a non-western society, for whom there is no cultural term that explicitly defines the concept. This paper describes illustrative examples of the trials and evaluation exercise of the module. It concludes with a summary of the effects the teachers' interaction with the module had on their professional development.