One foot, two feet One mouse, three mice One goose, four geese In this clever counting book, die-cut windows frame a single object and a turn of the page reveals a group. Featuring familiar objects and funny artwork, this inventive concept book is a great introduction to both counting and common irregular plural nouns. A cumulative row of illustrations along the bottom of the pages shows all of the previous objects in order, so kids can keep track of where they are, and the book also contains a fun hide-and-seek game, inviting kids to spy a little airplane zooming through each spread.