El mundo como un juego matemático

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

Pepe and the Parker family are going to spend a day at the beach. Pepe can't believe his eyes—the Parkers go swimming despite the freezing cold and then drink tea from a thermos to warm-up. Luckily, they soon go to an amusement park instead and then to the pier to go fishing. There, Pepe has a great adventure as he cleverly stops a thief. Pepe y la familia Parker van a pasar el día en la playa. Pepe no sale de su asombro—los Parker se bañan aunque hace un frío que pela y luego beben de un termo de té para calentarse. Por suerte, pronto se van a un parque de atracciones y luego al...

Answers such questions as "Qué son los perros?, Qué come mi perro?, Qué mas necesita mi perro?, Qué puedo hacer por mi perro?, Qué puede hacer mi perro?"

There are government leaders all over the world that work at the city, state, and national level. This captivating Spanish book will allow readers to learn about various jobs in government including politician, statesmen, governor, and mayor. A look into the past includes a brief history of the U.S. government and some of the most important offices such as heads of state, Congress, seats in the Senate and House of Representatives, and the president. The fascinating facts and brilliant images combine with the supportive text and helpful glossary and index to provide a reading experience that...