For each of the following videos or reading:
Continue preparing for Exam 1 by completing and UNDERSTANDING the items that are your ADMISSION TICKET for taking Exam 1:
The Answer Key has the same page-by-page organization as the questions. Do a page of questions, then check your answers for (only) that page. Then do another page of questions, check your answers to that page, and so forth.
Also, get a FRIEND to compare your answers to the posted answers. That way, if you get a problem wrong, your friend can suggest that you re-work the problem, starting at whatever point you first went wrong.