So here is the reality about full immersion (and that means no other children speak English), yes, they do pick it up at a mach speed unknown to adults, but they are quite miserable in the interim. Stella has felt lonely at her new school and has really not made any friends yet. If you know her it isn't like her, she is a super fun and friendly kid. I pray it gets better before I loose patience and pull the plug on this grand experiment.
The funny thing about kids is how they learn language. Both my babies, like most babies who are able to grow into talking adults, babbled a lot. This is part of the language learning process. It was the first step before they started making real words.
Stella is babbling. There is no other way to describe it. Yes, she is a bright articulate four year old in English but she comes home every day from her French preschool making all sorts of crazy French noises. Not words, and not anything that makes sense (like an infant) but still you can tell she is practicing the noises she is hearing.
She does this all. day. long. All weekend in her quiet time she is mumbling these sounds to herself.
Here is a video I took in the car:
It is totally happening.