Hi, I am taking Calc I and prescribed text is Stewart. I did OK in individual tests at the end of each chapter but my problem is when I am taking Chapter 5 test I don't remember anything from Chap. 1,2,3 or 4 and so on and so forth. I mean I can remember simple concepts but not the entire chapter. Is this normal? I definitely did good on individual tests of chap.1,2,3 and 4. It is just that I am not able to remember any of the previous material or subject. Is this normal? What can I do? Any suggestions?