Los presagios del Papa Francisco

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

Learn how to help others in your community. This exciting Spanish nonfiction book describes the many ways that volunteers make a difference, from cleaning up parks to helping in food banks. Perfect for young readers, the book includes a short fiction stor

"Campus Sur es un nuevo curso intensivo de español para universidades creado: •Para los que trabajan en el ámbito universitario y quieren un manual eficaz en ese contexto. •Para quienes buscan un enfoque panhispánico: los países de América Latina y España están ampliamente representados. •Para los profesores que quieren experimentar técnicas de clase invertida (flipped classroom). Las unidades permiten que los alumnos y las alumnas trabajen previamente de forma autónoma y luego, en el aula, de manera colaborativa. •Para los que buscan trabajar con documentos variados,...

Read Along or Enhanced eBook: Welcome to the Caribbean! Readers are invited along to learn about a tropical paradise in this Spanish-translated nonfiction title that features vibrant, colorful photos, informational text, charts, and maps. From the delicious fruit to the exotic animals, children will be engaged from beginning to end.