Vi Hart makes a tortilla hexaflexagon for a Flex-Mex taco (video)

YouTube hands-on math star Vi Hart makes a hexaflexagon tortilla for a delicious two-layer Flex-Mex taco. Kids: You CAN try this at home with a flour tortilla, a knife, guac, frijoles, pico de gallo and cheese and a little bit of patience and manual dexterity. Remember that doll that said, “Math is hard”? Forget that babosa.