The emphasis on CER (claim, evidence, reasoning) is an important feature of this instructional model, and requiring students to work with primary and secondary sources around an established topic, within a framework of a Socratic, fish-bowl seminar, is a strong activity.  Having student repeat demonstrations of using CER is valuable, and their exchange with peers may lead to good civic discourse, an aim identified by the presenter of this session.  Many fine takeaways from this video!