>

Professor Iris is on vacation, so Ms. Principal is teaching the class. Throughout her lesson, she and the class receive letters from the Professor, who asks that all the stamps on the envelopes go to Piano's collection.

Seasons: 1 2 3 4
TMDb: 7.0/10
  • Language: English

Other episodes for this season

Stamps
Episode 1 - Stamps
Learning
Episode 2 - Learning
Rodents
Episode 3 - Rodents
My Eyes
Episode 4 - My Eyes
Hats
Episode 5 - Hats
Bats
Episode 6 - Bats
The Moon
Episode 7 - The Moon
My Teeth
Episode 8 - My Teeth
Books
Episode 9 - Books
Snakes
Episode 10 - Snakes
Taste
Episode 11 - Taste
Puppets
Episode 12 - Puppets
Balloons
Episode 13 - Balloons
Stringed Instruments
Episode 14 - Stringed Instruments