The reason being is that they needed time in the pilot schools to work out the KINKS before having it roll out in every school across Ontario - time to train the teachers on the concept of working an a 'team' with a partner that is to be viewed as equal in the room, time to train them on the new curriculum, as well as they need time for CENTRES to adjust to the loss of staff as RECE leave centres to go to school boards, as 4-5 year children leave centres to go to all day early learning ... change is hard enough but change of this size and magnitude definitely takes TIME that's for sure
The funny thing about this, is that in the Ottawa French boards, they have been doing this for 5-10 years! Why not learn from them!?