Algoritmos: la base de la programación de computadoras (Algorithms: The Building Blocks of Computer Programming)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

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...

Desastres naturales (Natural Disasters) is an exciting book about how estimations and predictions help save lives in natural disasters. Students will learn critical math concepts as they are engaged in reading about the properties of natural disasters. Practice problems and mathematical diagrams help students reinforce the importance of mathematics. This Spanish title includes a glossary, an index, engaging images, and easy-to-read text to help students build their math and reading skills.

Esta colección de pequeños alienígenas guardianes de la naturaleza que salen de su planeta en persecución del mayor contaminador del universo, el perverso Zirt Zlunder. Él huye y viene a parar a la Tierra. En este libro Zirt Zlunder el contaminador está contaminando los océanos, donde se escondió camuflando como una isla. Los pequeños guardianes localizaron Zirt Zlunder y le impedirá contaminar los océanos. ¿Ellos tendrán éxito? ¿Ellos conseguirán arrestar Zirt Zlunder el terrible contaminador?

Discusses the things money can buy, what forms money can come in, including cash, check, and credit, and what a budget is.