My daughter's bi-bi school started as a charter school but then merged with the state school for the Deaf. Nearly all the kids there have been there since they were three years old.....There are very mixed results. They all sign ASL very well, but very few are able to write English on grade level. Last year was the first year that any class was able to have 100% of the kids on grade level. It was the 1st grade class. The teacher worked her a$$ off and got all the kids age appropriate. It was a very big deal.
age level Deaf kids are rare without cued speech. and the teacher NEEDS A MEADAL