Everyone knows that one is one. But can ONE be more than one? Absolutely! ONE PAIR is always two; ONE WEEK is seven days; and ONE DOZEN is always twelve. And that's just the beginning of this brilliant and original counting book.
(retrieved from Amazon Thu, 12 Mar 2015 18:16:58 -0400)
Explains how the number one can refer to a single item, the two shoes in a pair, the seven days in a week, the twelve eggs in a dozen, all the trees in a forest, and much more.