Commercial cases, like those from Harvard Business School, Ivey and others:
Case studies used in the classroom, which we at the library call the "case study method" of educational pedagogy, usually present the case facts and, rather than provide the solution, provide alternative solutions and/or questions to lead discussion or challenge students to apply theories learned in their course. Commercial publishers often provide faculty with teaching notes and other resources to facilitate student learning. Faculty may be required to register for an account that allows them to access the publisher's website to identify and purchase cases for classroom use.
Some organizations may offer "free" case studies. These provide varying degrees of teaching support. Faculty may still need to register for access to teaching notes and materials.