Each read-aloud book in the Mouse Math series focuses on a single, basic math concept and features adorable mice, Albert and Wanda, who live in a People House. Entertaining fiction stories capture kids’ imaginations as the mice learn about numbers, shapes, sizes and more. Over 3 million copies sold worldwide! Albert loves his new pet snail! Flash is so smart, he can do any trick Albert teaches him…can't he?  Every Mouse Math title includes back matter activities that support and extend reading comprehension and math skills, plus free online activities. (Math concept: Position Words)