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.