Role playing and blended learning are teaching methods. Role playing involves students imagining different roles to understand concepts. It was developed in the 1920s and helps students grasp causes and actions. Blended learning combines online and in-person teaching using technology. It allows for self-paced and collaborative learning based on the idea that students learn from each other. Both methods aim to make learning interesting and give students opportunities to construct their own understandings, though role playing takes more time and blended learning requires sufficient technology access.