At 13, Thomasina is full of ideas about mathematics (and more) that dazzle even her gifted tutor — and that will challenge him long after the time they spend together.

At 13, Thomasina is full of ideas about mathematics (and more) that dazzle even her gifted tutor — and that will challenge him long after the time they spend together.

At 13, Thomasina is full of ideas about mathematics (and more) that dazzle even her gifted tutor — and that will challenge him long after the time they spend together.

At 13, Thomasina is full of ideas about mathematics (and more) that dazzle even her gifted tutor — and that will challenge him long after the time they spend together.