Dientes de animales

Animals sing or talk to communicate. They make noise for different reasons. Find out why some animals make certain noises. Paired to the fiction title So Many Classes.

Follow the life and nonviolent work of Mohandas Gandhi through his childhood in India, his education in Great Britain, and his work leading peace and equality movements in South Africa and India. This book provides significant social studies connections as well as vocabulary related to Gandhi.

Young children are natural problem-solvers and always looking for answers, especially when it involves interesting animals. This Spanish-language edition of Feathered and Fierce provides young curious readers with striking visual clues and simply written hints. Using the photos and text, readers rely on visual literacy skills, reading, and reasoning as they solve the animal mystery. Clearly written facts give readers a deeper understanding of how the animal lives. Additional text features, including a glossary and an index, help students locate information and learn new words.

If asked to define a forest, readers might say, "It has a lot of trees." But many places have a lot of trees. So, what makes a forest a forest? Readers discover that a forest is unlike any other biome on Earth. And a temperate forest is even more specific. Readers learn the many life cycles found within a forest and how the energy pyramid explains the numbers of forest plants and animals. In addition, readers learn by examining how forces usually considered destructive work to help forests survive. 32pp.

La saga de los Bernoulli, una familia burguesa de comerciantes y farmacéuticos, está repleta de fascinantes historias de aventuras migratorias, de desafíos intelectuales y sobre todo de mucha matemática. La época en que se desarrollan los acontecimientos narrados está impregnada de un pensamiento humanista y renovador. El ritmo de desarrollo de la ciencia en esta época se acelera. La solución de problemas científico-técnicos se convierte en asunto de importancia estatal. El dominio de los recursos del nuevo cálculo creaba una sensación de posibilidad de resolución de semejantes...