As I have taught this project for a while now, I had always run it as a group project.  For the most part students dug in and turned out some great results.  This semester we as a class had some healthy debate over making it an independent project.  I heard the arguments and stated that it this was fine, but as a group, greater things could be accomplished.
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These two works are good examples using the time frame normally meant for a class to be divided into half or fourths.  So I commend these two student as this is all made out of marsh grass from the ocean that would wash up on the shore.  Both had to go collect the reeds (grass), dry it out and then install it over a four class period.