Ronda que ronda la ronda

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...

Nueva edición del popular método Abanico, curso avanzado de español para jóvenes y adultos que desean alcanzar el nivel B2. La nueva edición incluye una renovación gráfica que facilita su uso, una modernización de las imágenes, actualización de muchos datos, una mejora del funcionamiento de algunas actividades y nuevas actividades para el tratamiento de los tiempos del pasado. Además, en 10 de sus 12 unidades, se ha añadido la sección “Taller de escritura”, cuyo objetivo es potenciar el trabajo comunicativo por escrito.

Navigation instruments have changed over time. Lodestones, sunstones, and sextants helped early navigators find their way. Modern technology makes navigation more precise than it has ever been. But the roots of navigation still remain. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for makerspace activities. It ...

Weather is an important science concept at the early elementary level. Recognizing and identifying kinds of weather requires observational skills and certain vocabulary terms. This bright volume allows young meteorologists to correlate weather in carefully selected photographs with descriptive weather vocabulary, such as rainy, sunny, and foggy. It's never too early to tackle this essential STEM theme!