Hacer hielo: Comprobar tu trabajo (Making Ice: Checking Your Work)

Young readers will learn the ways that César Chávez fought to protect the rights and lives of migrant workers in this inspiring Spanish-translated biography that gives history behind protests and developments of unions that Chávez led. Vivid images and an interesting timeline of Chávez's life work in conjunction with supportive text and a helpful glossary, table of contents, and index to engage readers from cover to cover.

Dirigido a lectores infantiles, este libro se caracteriza por captar efectivamente la atención y el interés de sus pequeños lectores gracias a una presentación gráfica realmente espectacular. Aprovechando la gran cantidad de imágenes sobre temas de astronomía disponibles en la actualidad, las cuales tienen además una alta resolución y una impresionante calidad, el libro despliega un atractivo repertorio gráfico para ilustrar temas apasionantes tales como las naves espaciales y las actividades y desafíos que caracterizan la labor de los astronautas. El contenido se concentra en...

Introduces Iran, including the geography, people, education, rural and urban life, housing, food, work, and amusements, along with other information about the country.

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...