Serving as a prominent framework for online learning, the Community of Inquiry (CoI), identifies three factors critical to learning in online environments: teaching presence, cognitive presence, and social presence. However, application of the CoI framework to face-to-face classes has not been broadly or systematically explored, despite…

Teachers are often perplexed realizing students ending up with different understandings of the same lesson after attending the same class. This study investigates the use of Variation Theory as a pedagogical design tool in improving students' problem-solving skills in trigonometry. This action research utilizing the 'Learning Study' approach was…