When I was in third grade I remember May day. We put on a play welcoming spring and made a maypole out in the playground. We strung ribbons or colored string on the flagpole and then would do a dance where the we would weave them round and round and then unwind them. Can't remember the whole thing, but that was a high light of the year. It meant that school would be out soon and summer vacation.
We also made little May baskets with paper flowers we made in class and then take them home to our parents, maybe hang them on the door and then pretend to find them. It was a tradition to say that spring was here.