Lecturers may prepare a case study that could then be used in classrooms in the form of the "instructing" case study (also see case approach and casebook strategy). For example, as early as 1870 at Harvard Law College, Christopher Langdell departed from the traditional lecture-and-notes method of educating agreement law https://paysomeonetowritemyhbrcas64243.tribunablog.com/not-known-details-about-hbr-case-study-help-47763061