Little Birdie Pinafore - Tutorial Exchange! Says that you can adjust the sizes. Would be cute for a jumper in Gingham, Polka Dots, Solids or Stripes. Tip: add a to double hem depending on the size for a couture or high end look.
I thought depending on how long this lesson was to go on, but if it was a week long thing or more, the final day could be a fairy tale day. Students could dress up as their favorite fairy tale character.