Understanding evaluation contexts is the key to understanding DAX and starting to think in DAX. In this session, we will start from the basics of evaluation context and explain the role of filter context and row context in DAX expressions, providing several examples of formulas where following the flow of contexts correctly is mandatory to make sense of the numbers computed.
At the end of the session, you will have a clearer idea of the importance of evaluation context, and you will probably look at your DAX code differently.