What's with the "new math," anyway?... a note to parents -- Stinky toes and hopping frogs: making 10 in different ways -- How to destroy a turkey sandwich: fact families -- Yummy muffins and buns!: place value -- Buns, not butts!: the hundreds place and three-digit numbers -- Strike a pose!: adding and subtracting... with models -- Filling tins and silly grins: moving numbers with your mind -- Imaginary friends: tricks to make addition easier! -- Stretch, kitty, stretch!: using expanded form for addition and subtraction -- Freeway driving and piggyback rides: addition with regrouping (aka "carrying") -- A big box of googly eyes: subtracting with ungrouping (aka "borrowing") -- Answer key -- "New math" translation guide, for grown-ups.