Polly's Pen Pal: A MathStart Picture Book About Friendship and Measurement for Children (Ages 6-10)
<p>Polly's pen pal, Ally, is 125 centimeters tall, weighs 25 kilograms, and lives 450 kilometers away -- and Polly is determined to find a way to visit her! A story of long-distance friendship introduces basic metric measurements to children.</p>