A family of Microsoft relational database management systems designed for ease of use.
First, I don't mind helping you, but you need to do some of this on your own. I checked, the copy I have and The Progress subform is being sorted on StudentID., All you needed to do is add CourseID to the OrderBy property.
You need to start exploring the properties of the objects. This is how things are done in Access. Everything is an object and you get things done by manipulating the properties of the objects, either manually or programmatically. So an understanding of what properties you can change is essential.