The PDF was a bit messy looking, so I did some cutting and pasting to pretty it up. My prettied-up version is posted here.
I printed a class set and slid them into one of my favorite tools - dry erase pockets! You can find these super cheap on Amazon by searching for "shop ticket holders." They turn any activity into a dry-erase activity. This means you can make less copies and use the same set of copies year after year! My favorite dry erase markers to use with students are these pen style dry erase markers that are made by Universal. If you shop around and price check with other sites (I've often found them the cheapest at Shoplet or Zerbee), you can get them for around $2.00/dozen!
After passing these out to my class, I instructed them to read the instructions before starting. They obviously didn't listen to me because I was soon being asked "Do we start from the top or the bottom?" Ugh. I'm five years into this teaching thing, and I still don't know how to get my students to read the instructions.
I thought this maze would be a BREEZE for my students to complete, but they found it really tricky. In retrospect, we should have done a lot more practice problems on our dry erase boards BEFORE I gave them this maze! What I do love about this maze is that all of the problems are made to look liek they could possibly simplify to 3m^2 + n. So, students really have to think critically!