How to structure the Introduction of my Master's thesis?
2W1H

The introduction needs to answer three questions. WHY, WHAT &amp; HOW. 

Declare why the problem needs solving, what the problem is and what a solution will look like, and how you have intended to go about the business of getting from the former to the latter. In addition to this, it can be relevant to quote specific earlier research that you will be building your thesis upon. Maybe a reaction path, a lemma, whatever depending on which field it of course is.