4Mathematically proficient people know how to connect numbers to situations. To nurture an understanding of numbers, young learners use objects to aid them in conceptualizing and solving problems. Each beautifully illustrated book in this high-interest series provides many opportunities for readers to count objects and characters, up to ten. Each volume provides a unique adventure with aliens, superheroes, monsters, and fairies--creatures readers will enjoy getting to know. The at-level text is crafted to be achievable for the beginning reader and motivating for the budding mathematician.