Cada dólar marca la diferencia

Did you know that swimming pools are used to train astronauts? Athletes use swimming pools to train when they're injured, and doctors use them to help patients feel better. Learn how swimming pools and aquatic therapy help all kinds of people! Created in collaboration with the Smithsonian Institution, this Spanish book ignites a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides English language learners through every step of the engineering design process. Inspire students to pursue a STEAM career with career advice from a real person ...

Discusses the various facets of the fall season, including activities and celebrations, through simple questions and answers.

Simple text and photographs introduce the concept of symmetry as displayed by familiar creatures and objects.

Los cangrejos ermitaños no tienen caparazón propio. Deben mudarse a caparazones más grandes a medida que crecen. Aprende estos y otros datos intrigantes en El cangrejo ermitaño, uno de los libros de Me encanta mi mascota. Hermit crabs do not have their own shells. They must move into bigger shells as their bodies grow. Learn these intriguing facts and more in Hermit Crab, an I Love My Pet book.

Mediante la técnica del flash-back el autor nos cuenta dos historias paralelas separadas por miles de años de diferencia pero con un punto en común: las pinturas rupestres de Altamira.