El ciclo del nitrógeno (The Nitrogen Cycle)

Roger Priddy's Bilingual Bright Baby Colors This book will increase your child's vocabulary by associating words in Spanish and English with beautiful pictures. Este libro aumentará el vocabulario de su hijo ya que asocia palabras en Espanol y Ingles con bonitas ilustraciones.

Learn more about the renowned British scientist, professor, and author who spent his entire career trying to answer the question: "Where did the universe come from?" Stephen Hawking was born exactly three hundred years after the death of the scientist Galileo, so maybe it was written in the stars that he would become a famous scientist in his own right. Although he was diagnosed with a neurological disease at age 21, Stephen did not let the illness define his life. Known for his groundbreaking work in physics, and identified by his wheelchair and computerized voice system, Stephen continued...

The second edition of Cinema for Spanish Conversation includes the same stimulating exercises and conversation materials that have made the first edition a success among students and instructors alike. The text is designed to be used in courses in which outstanding films from the Spanish-speaking world are used as springboards for classroom Spanish-language discussion. Using high-interest feature films, students hear Spanish as it is spoken in different countries and in a wide variety of situations and are encouraged to listen to and converse about the social and cultural aspects of...

Our toilets toil away for us every day. Yet, they get little thanks for their hard work! When you think of toilets, you probably picture one in your home. But, toilets can be very different around the world. At first glance, a toilet is a simple device, but they are critical for proper sanitation. There are many people worldwide who do not have access to a toilet. Let's dive into an exploration of the history, importance, and inner workings of toilets! This Spanish book combines math and literacy skills and uses everyday examples of problem solving to teach subject area content. The...