There is no new reading for Week 5! Use this opportunity to catch up on past readings and take a look at the archive of old CS 115 exams.
This semester, we are not learning how to handle non-numeric input from the user in programs that expect a number. However, if you are interested in learning on your own, Section 7.4 of your textbook ("Exceptions") is the place to go. I'll be happy to answer any questions you have on this material.