Green attends preschool in Miss Marigold's class, the only known class in the school building. Green Puppy is an emerald-coloured puppy who loves to knock over block towers. He enjoys building towers and knocking them down after they are completed. The character is friends with each one of his classmates. "Blue's Clues" provides another tale to help ease childhood fears in "Green Puppy Goes to the Dentist," The power of roleplay is again demonstrated in this book when Blue becomes "Dr. Blue" -- a certified pretend dentist who shows Green Puppy just what going to … He is one of Blue's friends from school. Green attends preschool in Miss Marigold's class, the only known class in the school building. The character is friends with each one of his classmates. Green Puppy is an emerald-coloured puppy who loves to knock over block towers.

"Blue's Clues" provides another tale to help ease childhood fears in "Green Puppy Goes to the Dentist," The power of roleplay is again demonstrated in this book when Blue becomes "Dr. Blue" -- a certified pretend dentist who shows Green Puppy just what going to … He is one of Blue's friends from school. He enjoys building towers and knocking them down after they are completed.