If you like your Thanksgiving dinner guests to walk away with brains as full as their bellies, YouTube's favorite mathematician Vihart serves up a side of learnin' with your annual feast.

It's hard to turn your nose up at a green bean casserole when it's used to elegantly explain and illustrate the concept of vectors. And if your guests complain when you try and share your newfound knowledge and appreciation for cooking, you can always hold the pumpkin pie hostage. [YouTube]