Pájaros de silencio

California presenta respecto a España notables paralelismos y similitudes, tanto en parámetros geoclimáticos como incluso en muchos aspectos de su historia hidráulica o en lo referente a niveles de regulación y disponibilidad de caudales. Sin embargo, el profundo giro operado desde finales de los setenta en la política hidráulica norteamericana ha generado un nuevo modelo de planificación y gestión del agua que contrasta fuertemente con las concepciones e inercias desgraciadamente vigentes todavía en nuestro país. En California prevalece el valor ambiental y ecológico del agua. De ...

Learning about a career as a molecular biologist is the perfect introduction to the practical applications of STEM. This career-focused book aims a microscope at molecular biology, helping readers understand DNA, genes, and the systems within a cell. Readers will also learn about advances in the field and how to work towards a job as a molecular biologist. Accessible text is paired with vivid visuals to keep readers’ interest as they learn more about this STEM topic. A graphic organizer and fun fact boxes present additional information to ensure a dynamic learning experience.

Compare traditional dance costumes from Cuba, Ireland, Japan, and Nigeria! Early readers will learn inequalities and how to compare groups and numbers with this Spanish book for kids. With bright images and simple text, this full-color book develops students' math and reading skills. The Math Talk questions build fluency and comprehension of basic math concepts. Perfect for shared or guided reading, this nonfiction kids book is ideal for kindergarten and ages 4-6.

An American Indian Library Association Youth Literature Award Honor Picture Book Mary Golda Ross designed classified airplanes and spacecraft as Lockheed Aircraft Corporation's first female engineer. Find out how her passion for math and the Cherokee values she was raised with shaped her life and work. Cherokee author Traci Sorell and Métis illustrator Natasha Donovan trace Ross's journey from being the only girl in a high school math class to becoming a teacher to pursuing an engineering degree, joining the top-secret Skunk Works division of Lockheed, and being a mentor for Native Americans ...