Not much. My parents have saved some art projects I made during kindergarten and looking back on them, they are familiar, but I don't remember actually making them. I do still remember some of the songs our music teacher taught us, though.
We took naps. We had milk every day and on Thursdays it was chocolate milk. We did lots of lots of projects with construction paper. When I recall some of those projects, I suspect that they were almost completely pre-made. For Valentine's Day I 'made' a heart shaped hat covered with a paper doily and with ribbons attached to tie it under my chin. (My baby brother tore it up and I am still bitter about that). I remember passing around a jar of cream and taking turns shaking it until it turned to butter. We also brought caterpillars to school and kept them in jars where they spun cocoons. I actually remember a lot more.
I remember those little cardboard cartons of milk we got in kindergarten and elementary school. The boy who sat next to me had a hard time getting it open and he always completely butchered the milk carton. I can still remember the teacher yelling at him for trying to pry it open with a pencil or some scissors!