Joyce Williams Elementary School is Lewis' school in Meet the Robinsons. Its name comes from William Joyce, the author of the book on which the film is based. In the movie, the science fair takes place in the school's gym; while Micheal Yagoobian's transformation to Bowler Hat Guy began at it's baseball pitch.
The school allows the children of Sixth Street Orphanage to attend it, so they can keep up on their education and meet other kids outside the orphanage until they get adopted and their new family moves them into a different school: that is close to their new home.
In the Meet the Robinsons: Video Game, when Wilbur Robinson went back in time to find the "Bowler Hat Guy"; he accidentally made Stanley and Lizzy crash into each other and a rivalry between them began. Which altered the future. When Wilbur learned how the alternated future was "made" and that he was the one who knocked the two into each other, he went to the school to undo his mistake.