C# to F# code tutorial/Explained

I develop in C#, I have created a simple game/demo in C#. I have downloaded someone elses Code of the same project in F#, I need to understand this code and be able to re-create it. I have not used F# but understand the very basics. Its a very small piece of code and should be fairly easy for anyone with experience in F# (preferably you should know C# as well, so you can compare the 2 for my understanding) You will need to speak good English, Have Mic to speak and work with me via Remote connect to walk through the code and to then re-create it in a new project... Explaining the code to me as we go. This is a small project, couldn't imagine it taking more than 1-2 hours.