What is teaching case?

A case study is a puzzle that has to be solved. The first thing to remember about writing a case study is that the case should have a problem for the readers to solve. The case should have enough information in it that readers can understand what the problem is and, after thinking about it and analyzing the information, the readers should be able to come up with a proposed solution. Writing an interesting case study is a bit like writing a detective story. You want to keep your readers very interested in the situation.