One Is a Snail, Ten Is a Crab

　　If one is a snail, and two is a person … we must be counting by feet! Children will love this hilariously illustrated introduction to simple counting and multiplication with big feet and small – on people and spiders, dogs and insects, snails and crabs – from one to one hundred!

作者簡介

　　April Pulley Sayre and Jeff Sayre are a husband and wife team who lead eco-tours and who travel extensively to study, photograph and film animals. Together they have written over 40 books for children, several of them award-winning.