Design Like Nature

¿Por qué las alcancías tienen forma de cerdito? Si todos los billetes cuestan lo mismo, ¿por qué valen diferente? ¿Qué es el trueque? Aprender a tomar decisiones, a negociar (sí, ¡el intercambio de estampas en el patio es la primera y más dura de las transacciones a las que nos enfrentamos!), y entender la diferencia entre precio y valor es fundamental. Este libro ilustrado nos muestra de una forma muy dinámica, divertida y eficaz las claves básicas para aprender a gestionar la mesada y entender qué es el dinero. ENGLISH DESCRIPTION Why are piggy banks shaped like pigs? If all...

What takes the shape of the container it is in and changes shape when the container changes? Liquids! Liquid is a state of matter that has some big differences from solids and gases. Learn all about liquids with this colorful, Spanish-translated title! This 6-Pack includes six copies of this title and a lesson plan.

Learn how prosthetic devices and 3D printing have helped injured dogs, cats, elephants, and dolphins! This Spanish STEAM reader builds literacy and critical thinking skills through real-world examples and features a hands-on lab activity.

Families can be big or small, but all resemble each other in one aspect: they have a past and a present that, is also part of a broader history, that of a culture or race, or that of the world. The reader will see that family trees are used both by historians and everyday people who trace generations of relatives. Although family trees imply blood relations, the ties of love and friendship are often just as important.