Inspired by this post, I decided to create a large, op art mural in my classroom that all of my art classes could work on. I had a bulletin board space in my room that wasn't being used to it's full potential, so I covered it up and got to work!
I first started with a layer of old construction paper, just to
protect my bulletin board from the Sharpie that we would eventually be
using. Then, I used large sheets of white paper to create the
background, and started the outline of the optical illusion.
The next step is to separate the sections checkerboard style. Mark every second section with an X in pencil (I had some grade 6 students do this for me.)
The idea was that kids could color ANY square that was white, in any color. If there was an X, it meant they left it blank.
There were DEFINITELY some kids that accidentally colored in spaces with an X, but it wasn't really a big deal. Most of the time they realized after a few marker strokes, but also, during the next step, we were able to fix any mistakes.
Here's a picture of it beside the wall - I did this so you can get a feel for how big it is. The soap dispenser is off to the left of it.
Has anyone else ever done a large collaborative mural?