<p>Having just finished my first semester, during which I took several of the classes in question, I will say this. Taking any of those over the summer will certainly make your life easier trying to get into Kelley (though getting at least a B in most of these classes (I can’t speak for calc at IU as I won’t be taking it) is fairly easy with some work), but if you do take an easier version of the class elsewhere, it could hurt you later in Kelley (after all, the prereqs are there to prep you for later in Kelley, and summer classes elsewhere could be quite different). That being said, all of these classes are typically considered “hard”, so if you do want to get some out of the way in advance, maybe take a couple that you, personally, think you may be weaker in overall so you can focus solely on them over the summer. If you have any more specific questions about any of the classes or Kelley, feel free to ask as, like I said, I just finished all of the above except calc.</p>