Lisa Greathouse 
Animales de granja [PDF ebook] 

There are all sorts of ways to sort farm animals! This charming, Spanish-translated title teaches young readers how to recognize animals’ different qualities and sort them into sets, familiarizing children with set theory, data analysis, and early STEM themes. With the help of familiar images, engaging "You Try It!" problems, and a glossary, children will be able to sort animals into many different categories–big or small, two-legged or four-legged, fast or slow!