Mrs. Rosen greats Elmo and Elmo's Mom on the first day of school. Mrs. Rosen is Elmo's teacher in the "Elmo's First Day of School" online storybook. She is a green Monster with blue hair. Her students include Elmo, Maya, Suzy and Andy. See also Teachers Retrieved from "https://muppet.fandom.com/wiki/Mrs._Rosen?oldid=1096741" Categories: Sesame Street Characters School Sesame Street Monsters Illustrated Characters Community content is available under CC-BY-SA unless otherwise noted.