La economía (The Economy of Latin America)

In this inspiring biography, readers will learn about the incredible journey of Helen Keller. Using informational, Spanish-translated text and expressive images and photos, readers will discover the undeniable determination that Keller had as a young deaf and blind girl and how her teacher, Anne Sullivan, helped her to read, write, speak, and graduate from college. With a timeline, a bibliography, and a glossary of terms, children are given the tools they need to expand their knowledge about this fascinating and inspiring woman.

For most of history, women have been confined to their households, and to lives without equal rights or equal opportunities. This volume introduces readers to the women of the suffrage movement, the defining movement for women’s rights, especially the right to vote. Primary sources and photographs will show readers firsthand how the challenges and successes of this movement shaped the lives of women across the United States. Readers will also learn about the inequality that still exists for women, and how they can change this injustice in the future.

Explains some of the challenges and rewards of having a friend with ADHD using everyday kid-friendly examples--in both English and Spanish

Este libro ofrece al estudiante de Química una amplia colección de cuestiones y problemas, explicados y resueltos, presentados en orden de dificultad creciente, muchos de los cuales fueron propuestos en Pruebas de Selectividad o en exámenes de Facultades Universitarias y Escuelas Técnicas. Pretendemos con ello complementar los contenidos teóricos de la asignatura, posibilitando la simultaneidad que debe existir entre toría y práctica, aunque ésta, frecuentemente, se manifieste como una situación idealizada de la realidad. Un libro diseñado, no para saber más, sino para entender...