Problemas Acertijos Mentales: (preguntas Con Respuesta)

Acertijos de pensamiento lateral, de números, de lenguaje, de geometría. También hay adivinanzas, enigmas, rompecabezas... Los ingeniosos acertijos que se incluyen en este volumen y en los siguientes, muestran que las matemáticas, la lengua, la física y otras disciplinas pueden llegar a ser muy divertidas y entretenidas. El libro ha sido escrito con la intención de que pase Vd. ratos muy agradables. Casi todos los acertijos seleccionados pueden explorarse con la ayuda de un papel y un lápiz. Para resolver la mayor parte de ellos, no se requieren conocimientos superiores a los...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of data analysis. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how data analysis works in the real world. In this book, readers look at data about the population of Chicago in order to learn more about the city. This...

There are millions of animals that call the ocean home. Some of these animals are in danger. Readers will learn about marine animals that are at risk of becoming endangered and what people and activists like Jacques Cousteau have done to help. Readers will also learn about the causes of endangered animals, including pollution and overfishing and learn steps they can do to help the conservation and preservation of these beautiful animals and sea life. Through vibrant images, informational text, stunning facts, a glossary of terms, and a list of additional resources, readers are sure to be...

Describes the Boston Tea Party, including the events leading up to the party, its immediate effects on American-British relations, and why it is still an important event today.

If a person were ever face-to-face with a huge, hungry animal with sharp teeth, they probably wouldn’t care exactly what that animal was! But from a safe location, can we tell whether it was a crocodile or alligator that wanted to take a bite? By examining their jaw structure, teeth, and other physical features, we can easily tell these two animals apart! Graphic organizers and amazing images highlight each animal’s habitat and other small differences between the two fearsome creatures, showing readers just what creature is lurking below the waters.