Most of the international students I've worked with for volunteer programs have a pretty hectic schedule after school, although mostly I've ever only known secondary students. Their schedules are usually slammed with extra curricular. Whether it's newspaper, yearbook, band, sports, theatre, community service, or whether is some off-campus thing they're involved with, or even a lot of tutoring especially if they are getting ready for SAT, etc.
Is it more the primary students that have schedules of play, play, and more play?
You know that sometimes learning through play is really effective? No pro here, but when I was kid...man did I play so many video games. But I've got all this random knowledge from playing games that it's scary. I know all about Three Kingdoms, Airplanes, Elevators, City Planning, resource planning, military weaponry, cars/upgrades/engines etc. from playing video games. Even all these random sports that I would never play in real life I know about.
But anyway, I think that the key is to find the right fit for your child and to see what what you would like for them to be like when they grow older.
We're currently at Tutor Time, but wondering if we should move to a playgroup that has a more direct progression to K1 such as Creative. Would love Anfield, but their classes are for older kids. Tutor Time starts at 6 months. Also considering Montessori. Any experiences on the schools and your experiences?