Universo Hawking

If you lived long ago, how different would life be from how it is today? Many things are different, but many things are the same! Introduce students to the concept of change as they compare homes, schools, jobs, technology, and transportation from the past and present. This primary source book uses dynamic primary source images and supportive text to integrate social studies content and language arts instruction. The accessible table of contents, glossary, and index work to aid students in better understanding the content. Aligned to state and national standards, this Spanish book will engage ...

Este texto se adapta a un curso completo de Modificación de la conducta, recogiendo en esta 8a edición los últimos estudios relacionados con esta área. Se han añadido capítulos completamente nuevos en el campo de las nuevas técnicas de motivación. En total el texto presenta un 2 por ciento de material nuevo y el resto del libro ha sido reestructurado por completo para darle un mayor enfoque pedagógico y aplicado. | Desarrolla, de forma gradual, la capacidad del estudiante para analizar e interpretar el análisis de datos. También se han actualizado los ejercicios y actividades que...

Enter the world of bug builders! Bugs can build structures that are as complex as the ones that we build! Readers will learn about the amazing things tiny creatures such as silkworms and beetles can build in this inviting, Spanish-translated nonfiction title that features detailed photos, riveting facts, informational text, a glossary for vocabulary improvement, and a list of useful websites.

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...