Caillou is a children's television show based on the books by Christine L'Heureux and illustrator Hélène Desputeaux.
Here you have several links to resources from the Caillou Official Site:
Memory Game. Printable handouts to make a set of cards to play 'pelmanism' game.
Paper Dolls. Printable pictures of characters and clothes to be coloured and cut out. Useful for colour dicatations and work on clothes.
Storybook. A printable small book with a story. Useful for some simple dictation, copy short texts from the blackboard and further reading.
Colouring Book. Twelve pictures of characters from Caillou's stories.
Several songs like this one about the Days of the Week.