The Tangram is so engaging that it doesn’t really need a picture book to entice kids to play. But, if you were seeking an over the top introduction with a nod to medieval China (and a side of economic social justice) then this is definitely your book.
Virginia Walton Pilegard delivers The Warlord’s Puzzle in a style often employed for Chinese folk tales. In this one, the ruler (warlord) has a problem (tangram) that no one (wise men, monks, and the affluent) can solve. Enter the peasant fisherman’s son, to save the day and receive a lavish reward. It’s no shock that we wrap up with the moral of the story. (Just because you’re marginalized by the mainstream culture doesn’t mean you aren’t wise.)
Predictable? Yes. But given the application I have tasked this book with, this is a solid selection.
And here are a couple user friendly tangram sites.