My 3 year old daughter's Nanny is moving on and we are looking to transition her into preschool. My ex wants to split up the adjustment into 3 stages over the next 9 months. I'd like to make one transition. I can't find anything on the best method to take here, but I have the inclination that going to Part time nanny/part time preschool, then part time nanny/part time montessori, then full time montessori creates a 9 month period of constant transition. I hate to use a band aid analogy, but I think one big change followed by several months of stability would be preferable to transitioning slowly over a long period of time. Any thoughts?