We have a time during our week (on every Thursday) called Learning Buddies and what we do is we go to a kindergarten classroom where we read a book from the kindergarten buddies book bag.
Recently, we got counting sheets and the 5th graders count along with their buddies like this:
And so on.
Also something that recently happened we were reading Mo Willams’ books. When I was reading with my kindergarten buddy, the books that we were reading were mostly the pigeon books and a couple of the elephant and the pig books.