Los ciclos de vida de los peces (Fish Life Cycles)

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.

Follow a day in the life of two children from different cities! This entertaining title has been translated into Spanish and encourages young readers to practice time measurement skills and early STEM themes, like reading analog and digital clocks. Familiar images and fun practice problems will have young readers thinking about how they can measure time throughout a day in their own lives!

Introducción de Alberto Cardín. Grabados extraídos de la edición Imprenta del Guardia Nacional, Barcelona 1839. Poco conocidas dentro del conjunto de la obra de Valera, estas cartas forman un conjunto coherente, tanto en lo temporal como en lo espacial, que las convierte en el más interesante epistolario de viaje del siglo XIX español, por encima incluso de las Cartas Finlandesas de Ganivet, mucho menos vivas, personales y penetrantes. Epistolista por necesidad, debido a sus múltiples cargos diplomáticos, pero aficionado también al género epistolar por puro gusto literario, Valera...

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

This book will open your eyes to a world full of beautiful images. It presents a journey through the history of art, from the very first artistic manifestations to the images we create today on our electronic devices. Based on the adult title, this edition for kids is explained through dialogue with inspiring simplicity and clarity.