Young children enjoy and benefit from hearing a story many times. Encourage your preschoolers to pay attention to and discuss new things they notice in the story as they hear it over and over again.
Share alternate versions of "The Three Little Pigs." In addition to the number of ways the classic tale has been told there are also other stories inspired by it, like Jon Scieszka's "The True Story of the Three Little Pigs," which tells the story from the wolf's point of view. Children can talk about differences between these stories and which ones they like the best. Compare written versions of the story to video adaptations. It may be interesting to listen to other fairy tales and other stories about pigs.
Preschoolers can also practice their own storytelling skills, summarizing what they remember from the story, imagining their own versions of the events, and using the ideas from the "Three Little Pigs" as a starting point to create entirely new stories. Preschoolers can also retell the story in another way by acting it out.
Many arts and crafts projects based on the "Three Little Pigs" are appropriate for preschoolers. The simplest of these is drawing or coloring characters and scenes from the story. Children might draw a pig or a wolf or one of the three houses. They can talk about what they drew and why they chose to draw it.
Preschoolers can also use art supplies to create costumes of the pigs and wolf. Have them use string and sections from a cardboard egg cartoon to create pig noses, and paper to create ears and tails. The kids can enjoy these costumes alone, or they can use them to act out the story or as props for games. You can easily adapt classic games such as tag to fit the "Three Little Pigs" by having the player who is "it" be the wolf who is trying to catch the "pigs."
Add a little scientific experimenting to "The Three Little Pigs" activities by working with your preschoolers to build houses out of a variety of materials, such as straw, sticks, rocks and paper. Have them guess which house is the sturdiest and then test how well the houses hold up when the kids fan or blow on them. Challenge the kids to design a house that won't fall over, and whether their houses fall over or not they can think about the ways they built and how they could build something that would be stronger.