Ah yes, tomorrow we celebrate the 100th day of school! Ours is slightly different from the rest of the school since KG assessments take place the first 4 school days.
I've watched it done a bit differently with each of the 10 teachers I've worked with over the years. With some it was a borderline crazy day filled with fun learning activities and with the more recent - fewer activities in a more controlled environment.
Every year, at the end of the day I hear one short person ask when the party is. I guess you can't fool them all. ;>)