Introduction

The introduction is like a funnel,
from generic to specific.
Image by Clker, Pixabay

An introduction generally consists of three paragraphs containing:

In the case of longer reports you can also provide:

In general, an introduction is shaped like a funnel, in which you start with more general information about the reason for your research (the problem), and then become more and more specific about what exactly you want to research and how.