Learning Resources Smart Snacks Puzzle Pies. Encourage the teaching of early fractions by simplifying them with a homemade pie. Three plastic fruit pie pieces feature slices representing ½, ⅓ and ¼ ,a perfect example of fractions in everyday life. Plastic pieces are labelled with numbers 1-4 so children can self check while also recognising and counting numbers. Includes plastic pie slicer adding to the experience - provides a fun way to serve up fractions and numbers. Set features multilingual packaging.