Hello, welcome to Geometry with Data Analysis! I encourage you to do several things at the beginning of the course.
1) Have a single notebook that you will keep your geometry notes and work in. It is just much easier to organize a single class in a notebook, and to keep up and find things if they are all in one place.
2) If you don't have one already, create a personal email account (I prefer gmail). This will be helpful in signing up for other applications that we will be using this year.