Blue's School is the twentieth episode of Blue's Clues from season 4. However, this and the next episode were aired on TV in the United States towards the end of the sixth season and it is currently unknown why they aired late.
It is nothing but class at the Blue's Clues house because they are playing school. Teacher Blue has a lot in store for Steve, Periwinkle, and Tickety. Story time, art time, snack time, and even a field trip. Where is Blue's class headed? While playing a game of Blue's Clues to find out, they will read, paint, practice the alphabet, and do lots of things that make school cool.
Question: Where would we go on the bus?
Living room picture: Chalk drawing of an apple, then a pencil, then an envelope, then a book, then a bus
Steve telling The Viewer that he wants to go to college is a foreshadowing to Steve Goes to College, also meaning his age in this episode is that he is 18 years old, and he is finished with high school because that episode is when he moves to college for the first time in that episode.
In addition to this, the words "My Dog, Blue" was changed to "Teacher Blue" in The So Long Song, because Blue is the teacher in this episode.
The book about the School Bus was featured as a pull out mini book in an issue of Nick Jr. Magazine.
This episode likely takes place after the next episode as playing school was the answer to Blue's Clues in the mentioned episode. It is unknown why they were aired out of chronological order if this was the case.