DIY Graphing Mat

So I mentioned last post that I was at a week-long math conference. Well, it was called "Math Camp" and it was SOOOOO worth the 3 hour drive and money spent!! Random thing I just HAVE to share: Me and my two camp buddies had a great stay at a super nice hotel for the week. However (haha), the following picture is of our neighbors' door! We're not quite sure what was going on there, but from Monday-Friday they had the "Do Not Disturb" sign on the door AND that towel stuffed at the bottom of…