Los parques naturales de Texas (Natural Parks of Texas)

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...

Un àlbum il·lustrat que proposa un recorregut pels principals reptes ambientals que tenim sobre la taula i exposa iniciatives i projectes que científics d'arreu del món han posat en marxa per vetllar per la salut del planeta de manera creativa i innovadora. I si... ho féssim diferent? Partint d'aquesta pregunta, el llibre proposa 70 projectes reals per canviar el rumb i garantir un futur sostenible per al planeta, amb una visió positiva per fomentar la creativitat i mantenir la ment oberta a noves formes de concebre el món.

You re growing up and your body is changing. If you re a girl, you re likely experiencing the start of menstruation, your breasts are making themselves known, and you re noticing new hair that you might want to be rid of. If you re a boy, you may be experiencing something strange as you sleep, or sweating a lot and not wanting to shower. This book is a complete guide to the terrible and marvelous world of puberty."

La diversión y el aprendizaje se combinan en este libro para tratar un concepto matamático complejo, el análisis combinatorio, base de la resolución de problemas y del pensamiento computacional moderno, y que pueden entender, incluso, niños pequeños si se analiza de manera lúdica y atractiva, como se hace aquí.