Developing in-service mathematics teachers’ pedagogical content knowledge and skills to teach trigonometry: Using cooperative teaching and learning approach

The study is aimed at enhancing pedagogical content knowledge (PCK) and skills of in-service mathematics teachers (IMTs) using cooperative teaching and learning approach (CTLA). A sequential multiple case study was employed to develop eight IMTs knowledge and skills to design, develop, and enact lessons in trigonometry. The lessons were anchored on CTLA in two phases of a professional development arrangement (PDA) initiated in the study. The analysis of classroom observation, interview, CTLA lessons and the independent sample t-test is suggestive of significant improvement in the IMTs PCK. Further, although, the IMTs were rooted in teacher-centered pedagogies and encountered challenges, they effectively incorporated CTLA as a pedagogical tool in the teaching and learning of trigonometry. As a result of which, IMTs exhibited an enhanced content knowledge. Implications and recommendations for effective PDA in incorporating CTLA as an innovative pedagogical strategy for the teaching of mathematics at high school are discussed.