A lot of the Waldorf style schools (http://www.whywaldorfworks.org/) seem like this in the US. I went to a "multi-year" school where my classes were K-3 and 4-6. They were very much rooted in "pace" based learning instead of year based, and had very unstructured styles. i.e.: k-3 had no desks, and we had workstations and a "daily plan" to plan our own curriculum.

Right now we're researching pre-schools for my son and consequently other schools. It's super stressful. I want him to have a great holistic education and with California's school district the way it is, that rules out most public schools.

Similarly, I was intrigued with the concept of the school independent of the language or country of instruction. This school design is the sort of experience I want for my children.

Every school in America does this, but in English of course. I came to Canada at the age of four and enrolled in kindergarden without knowing a word of English. I don't remember much but I know I was able to assimilate fairly well and able to pass without being held back. At that age, the mind is an amazing thing and children just soak everything up.