Discussion in Diverse Middle School Social Studies Classrooms: Promoting All Students’ Participation in the Disciplinary Work of InquiryThis article identifies how two teachers build toward and facilitate three types of disciplinary, whole-class, text-based discussions: Sensemaking, Argumentative, and Culminating Argumentative. It analyzes the instructional work involved in preparing students for discussions, in situating discussions within a larger context of inquiry, and in facilitating discussions in the moment, focusing on the intellectual work being done when students take extended turns of talk that build on what has been said before.