1. There's a lot less exams, so you have to put a lot more effort into studying for just one test.

Sometimes, classes only have a midterm and a final, so there is less forgiveness and less room to mess up on a test. Invest your time into these exams and your professor (and your grade) will thank you.

2. Exams count for a LOT more of your grade (if you're a good test taker, you're in the clear).

Yeah, I know it's scary at first. In some classes, exams count for all of your grade. In some, it's 70%. Be aware of these changes because in high school, homework and participation were nice ways to cushion your grade. I remember participation being 25% of my grade in high school and a lot of teachers gave me automatic 100% for that category.

3. Office hours are SO useful when you're confused!

Don't be afraid to go to your professor! When taking Calc 2 last semester, I went to my professor's office hours ALL THE TIME. He started expecting me every week by the end of the semester. However, it helped a lot with tough concepts. Most high schools do not have office hours so a lot of students disregard them in college.

4. I don't care what you did in high school. Cramming will NOT work.

It just won't and anyone who tells you differently is lying.

5. Exams are more based on application, rather than memorization of what you have learned in lecture/class.

This is a very important distinction. Application of knowledge requires you to have a more thorough understanding of the material. Just be prepared for these types of questions. If your professor does not provide practice questions, ask him/her for good ways to prepare or online resources.