The Boy Who Loved Math: The Improbable Life of Paul Erdos by Deborah Heiligman Baby & Pregnancy Ohara runs Alchemy Bread

Ohara runs Alchemy Bread

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

published in 1923

or John Howland's Good Fortune

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

The Boy Who Loved Math: The Improbable Life of Paul Erdos by Deborah Heiligman Baby & Pregnancy Ohara runs Alchemy BreadMost 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