Globos aerostáticos (Hot Air Balloons)

This book really measures up! It provides historical background and details about how length, distance, volume, weight, and time were measured in the past. An introduction to many of the necessary terms for a better understanding of measurement, such as scale, perimeter, and ruler is provided along with detailed photos and images to help the readers better comprehend the overall concept of measurement.

En el acuario (At the Aquarium) engages students in reading about aquariums as they learn how to calculate volume. Volume helps aquarium designers figure out everything from the shapes and sizes of tanks to how much water is needed to fill them. This nonfiction Spanish text includes mathematical charts to help students practice calculations. With a glossary, an index, and easy-to-read text, students will build their math and reading skills while they are engaged in reading high-interest content.

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

«Decir a quiénes y para qué se destina es dar un libro la mejor definición. Éste se ha escrito para el público no especializado en lingüística, con objeto de informarle breve y claramente de lo que se sabe acerca del origen de las palabras castellanas comúnmente conocidas por la gente educada. He pensado, pues, en cuatro tipos de lectores: estudiantes de todas las disciplinas, aunque acordándome de que los de ciencias humanísticas y filológicas lo emplearán, naturalmente, más que otros; extranjeros cultos que tratan de adquirir del castellano un conocimiento algo sistemático,...

Con tres enormes problemas mentales, un hombre avanza en su vida sin saber las tragedias de las que él mismo se impresionará. No todos los caminos son felicidad y paz. En esta tragedia insólita, navegarás por los oscuros senderos de una mente enferma.

In this imaginative novel, Philip Roth converts the status of baseball from a national myth and pastime into the basis for biting satire, replete with heroism and treachery, wordplay, and an unforgettable cast of characters. Locked away in an asylum, once-famous sports journalist Word Smith attempts to write the great American novel through the story of one of the United States most celebrated baseball teams. The team s epic feats in the now-defunct Patriot League were soon forgotten after when, in the mid-1940s, Communist conspiracy infiltrated the heart of the United States in an effort to...