Introdution to EndNote shows you how to get started with the program. That includes how to create an EndNote library, how to import references, how to use EndNote with Word etc.
If you want to use your own PC or Mac on the course, EndNote must be installed in advance. You can download the latest version of EndNote from this page: https://innsida.ntnu.no/wiki/-/wiki/Norsk/EndNote. (or ask the Oracle service in Realfagbiblioteket / your local IT-support for help).