Dora the Explorer - Season 4 Episode 4

Dora and Boots are going to school, on their way they heard someone singing Boots' favorite song. Following the song they discovered it was coming from a lady on a bike, it was Boots' "La Maestra Musica" (Boots' Music Teacher). Boots introduces Dora to his Music Teacher, when they heard the school bell La Maestra had to get to school before all the students does. When La Maestra's bike chain broke down, Dora and Boots helps La Maestra by going through the Town, over Musical Mountain and to the School.