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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...

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

"Explains many different ways that children can show manners on the school bus--in both English and Spanish"--Provided by publisher.

Estás a punto de embarcarte en una fantástica travesía por la historia de los robots. Los robots han formado parte de nuestras vidas desde hace más tiempo del que quizás imaginas. Su origen es fruto del eterno impulso del ser humano de crear vida artificial para trabajar, medir el tiempo, observar el universo o crear música, entre muchas cosas, y su evolución es continua y cada vez más rápida. A lo largo de este extraordinario viaje conocerás a todos los robots residentes de Robotland, tanto a los habitantes más modernos como a sus antepasados más primitivos o, incluso, a los que...