Primeros Ejercicios de Calculo

Have you ever seen a skyscraper that is shaped like an elephant? How about one that looks like waves? Students will learn how to measure area while engaged in reading about the world's coolest skyscrapers! This Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of...

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.

Rudy can't find his favorite sweater. He's looked everywhere: inside the house, outside, and in the apartments upstairs and downstairs. In the kitchen, in the bathroom, here, there . . . where could it be? This enchanting story has flaps, pages with cutouts, and numbers to count.

En estos tiempos tan convulsos en los que la humanidad se encuentra afectada por una pandemia que va aniquilando gran parte de los habitantes del planeta, el doctor Roberto Gutiérrez Laboy reflexiona cuidadosamente, desde la perspectiva de la bioética, sobre cómo enfrentar situaciones tan trágicas como las que se están viviendo. Su finalidad es que se comprenda que las tragedias humanas son parte consustancial de nuestra existencia radicalmente problemática.