He takes a close look at snowflakes, practices playing hockey and uses a carboard box as a toboggan.
Snowflakes - Caillou eagerly awaits the first snowfall of winter, and imagines himself building the biggest snowman in the world. When the snowflakes finally start to fall he rushes outside to play. He and Sarah take a close look at some snowflakes, and then go inside to make their own snowflakes out of paper. Caillou Shoots! He Scores! - Caillou wants to play hockey with Billy and the other big kids. He goes with Daddy to the store to get the equipment he needs, but he finds he just can't keep up with the big kids. After Daddy gives Caillou his old hockey sweater - which is way too big for Caillou - he tells him that if he keeps practicing he'll be really good by the time he grows into the sweater. Caillou goes to Leo's house to practice his hockey skills and dream about the future. Caillou Goes Tobogganing - Mommy can't find Caillou's toboggan for the playschool tobogganing trip and Caillou is certain he'll miss out on all the fun. Miss Martin tells him that a cardboard box slides just as well as a toboggan on snow, so he decorates a box to look just like a bobsled. Once they get to the hill his bobsled box works just as well as all the other kids' toboggans and he has a grand time after all.