Torn Page Locations
After Cid repairs Merlin's Old Book, you can open it. You open it and discover a whole new world, the 100 Acre Wood. This is a fun optional mini-game. But to play each mini-game you need to recover the Torn Pages from the book. Here are the locations:

Traverse Town
Dalmatian's House: Your reward after finding 51 Dalmatian Puppies.

Cave of Wonders: Dark Chamber (found in a chest).

Chamber 6: Found in a chest.

Ariel's Grotto: Examine the shelf (found in a chest).

Halloween Town
Research Lab: Examine the bookshelf

Now go run along and play the awesome mini-games that take the frustration away from trying to beat the game! =D