You know how movies (like Lord of the Rings) have special extended editions. Jenn blogged on “My Homeschool 101″ about decimal street idea and then created her own special extended edition of it.
She called it, “an extended version teaching place value to the trillions.”
Decimal Street (special extended edition)
“I made blue comma cards with the names of the lakes that they use with it to teach extended place value.”
526,767,081,196
You would need a LOT of blocks to build that number 
If you want to make your own click here to see Jenn’s instructions.
Have any other creative ideas? comment and let us know.
Great idea! Thanks for the tip! I didn’t understand place value at all until I started teaching with MUS–maybe I should make my own Decimal Street.
That is very cool. I might just use that one!