We started WoRM two years ago. In June,2000 we had an Open House with four workshops set up for a Pentecost unit so people could get a taste ot this new program --which were not going to launch until the Fall. (( - we did this on Pentecost Sunday which is also our church picnic day.))
Prior to this "Intro to Rotation Sunday" I had many articles in the church newsletter, talked to many parents, teachers, the Sessions, CE Committee, and presented two little skits on rotation during the worship hour. In this way, people got the message at least once (hopefully!).
IN THE PAST, we had a Rally Day where the children registered, meet their teachers, saw some of the things they would be doing (we used a published curriculum) and had refreshments.
In September, 2000 we began the workshops. We did not have a Rally Day. Instead, registration was done through the newsletter and bulletin inserts (of course some people signed up on that first Sunday - old habits are hard to change!) The children went right into the workshops. No one seemed to mind the change.
We have done this twice and will do it again this September.