Here you will find the lessons for Monogame. Since we used it last year, you should be familiar with many of these topics, so we will review them quickly and I will add some advanced extras for you.
Here are some links that may help you get going at home or work ahead:
https://docs.monogame.net/articles/getting_started/index.html
https://docs.monogame.net/api/index.html
https://docs.monogame.net/articles/tutorials.html