Iris, The Happy ProfessorSeason 226 episodesEpisodes1Butterflies2Seashells3LaughterEveryone in class is having an uproariously good time laughing at Professor Iris's disguises.4Bees5Trains6Flying Machines7HairMs. Principal is unhappy with her new hairstyle.8Elephants9The Telephone10VacationsEveryone in class has a different suggestion on where they can spend their summer holiday together.11Horses12Why Do I Cry?Ms. Principal brings her baby to Professor Iris' class. This leaves everyone at a loss at trying to help the baby stop crying.13CarsThe class helps to spruce up a car that Ms. Principal is ready to display at an auto show.14Photography15Minerals16Jungle Animals17The Farm18Flowers19Volcanoes20The Kite21Insects22Evergreens23Eggs24Dogs25I Play Dress-Up26The VoiceIn preparation for her concert, Ms. Principal joins Professor Iris in a loud-mouthed lecture on the voice.Season 1Season 3Season 4
