In most stats classes, the only way you'll ever have to make a normal quantile graph is on your calculator. Doing them by hand is just silly! So this video explains how to do that, as well as a couple of common errors to avoid (hint: stat-fit rules!).
Interpreting Normal Quantile Plots
Once you've got yourself a normal quantile graph, the next thing you've got to do is interpret the darn thing! I would argue that the first thing to do is look at the histogram instead, but if you can't do that (like a no-calculator quiz), this video shows you what these plots mean, and the common patterns to look out for.
If you do not have an account, you should get one, because it is awesome! You can save a playlist for each test or each chapter, and save your "greatest hits" into a "watch right before the final" list (not that we recommend cramming, but when in Rome...)