I attended Kindergarten. My city had a dense population, and there were two sessions, morning and afternoon, and different children attended each. I think it switched out halfway through the year, with the morning children going in the afternoon, although I'm not sure. Schools were in neighborhoods back then, and the kids would all walk together to and from, in the morning, at lunch, and then back home in the afternoon. I believe the idea was to transition children from an unstructured day to the full structured days of regular elementary school. I don't recall much of what we did there other than reading and some singing, but I'm still amazed that we made butter using a churn, and it's still the best tasting butter I've ever had.