for pre-K: music - singing songs with her class, also dancing/gymnastics (project to a bigger screen). story-time after lunch.

for kindergarten: actually a lot of classes: art, second language (most kids in school are bi-lingual En+Ru), basic reading and math, also music, dance, gymnastics (again bigger screen helps here).

I would say it was actually pretty good and easy on us (parents) for kindergaten. But, yes, it is still tough for pre-K kid as she needed much more attention from us.