Arthur Season 19 Episode 10 - The Last Day Episode Title:The Last Day.Episode Description:Arthur and co. are moving to the fourth grade, and D.W. and Bud are moving into kindergarten. As the summer season approaches, Muffy and Francine are concerned about attending different summer camps. Meanwhile, Arthur and Buster have their sights set on being in the grade four classroom taught by Mr. Cramp (B.J. Novak). However, Arthur and friends realize that MC is not original after all and that they learned a lot of things with Mr. Ratburn, so they write a song and create a poster with all the stuff he taught them. They are delighted when they discover that Mr. Ratburn will be their fourth grade teacher.