Collective memory is more than what we remember: Quantifying interconnections. These shared memories are one example of collective memory: a remembered history that a group of people hold in common (Halbwachs, 1925/1992). Typically, research on collective memory focuses on the overlap in content, such as whether two people remember the same details (Roediger, 2021). Rajaram and colleagues argue that this organizational overlap is a distinct and underappreciated dimension of collective memory. If so, then that’s collective memory in action, right there in your classroom.