I'm also a CIS major taking the Intro. To VB.net programming class, which I'm finding my self being quite successful. I've often times found the "help" and "How Do I" features within the Visual Studio software. Often times you are able to pinpoint and focus on exactly what you're looking for or trying to do. For example, if I'm needing to complete a program requiring a "For Next Loop," and I'm not all that familiar with the concept, within Visual Studio I can click on "How Do I" under help, and complete a search for "For Next Loops" and it will return results specified in regards to For Next Loops. However, please keep in mind that there are several programming languages within the Visual Studio software, so be sure to check the filter option for the search results to only return those for the VB.net language.
Obviously, there are many other ways to learn VB.net through means of how-to books, videos, tutorials, forums, etc... The best advice I can give you would be to take it upon yourself to work through these exercises and learn the language. Don't just limit your programming to class times -- program outside of class. Remember practice makes perfect!
I hope I was able to offer some sort of insight and advice somewhere in there. However, if you have any additional questions or concerns, please feel free to contact me -- I would be more than glad to help you.
Good luck!