Hi Rand,
I don't teach third and I have not done the writing game (so basically, disqualifying myself to give you the answers you are looking for, LOL!) however, I would like to suggest that you jump into the genius ladder (see webinar) and oral writing (also webinar). I know you asked about the writing game, so you may already be doing the two things I mentioned, but I felt that it was worth saying just in case. I will be interested to see what others have to say. Honestly, the writing game seemed a little too complicated for me at this point. I would definitely need clarification on where to start!
~Bria