The Boy Who Loved Math: The Improbable Life of Paul Erdos by Deborah Heiligman Baby & Pregnancy " and "The Girl with

" and "The Girl with No Hands"--alongside his personal commentaries on each story's sources

"Backpack Explorer: Rock Hunt is packed with prompts and activities

Ohara runs Alchemy Bread

The starter kit includes prefabricated wooden twigs (with bark) which can be pieced together to make a crab

From the fox

The Boy Who Loved Math: The Improbable Life of Paul Erdos by Deborah Heiligman Baby & Pregnancy " and "The Girl withMost people think of mathematicians as solitary, working away in isolation. And, it's true, many of them do. But Paul Erdos never followed the usual path. At the age of four, he could ask you when you were born and then calculate the number of seconds you had been alive in his head. But he didn't learn to butter his own bread until he turned twenty. Instead, he traveled around the world, from one mathematician to the next, collaborating on an