El ciclo del nitrógeno (The Nitrogen Cycle)

Dice la higuera que hace muchos años, una tarde asoleada, su vida cambió de pronto cuando escuchó claramente que se abrió el portón de la calle y apareció Octavio, que abría muy grandes los ojos azules conociéndolo todo con curiosidad. Así el inicio de la vida de uno de los autores más importantes de México, único ganador del Premio Nobel de Literatura.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of algorithms and procedures. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how algorithms and procedures work in the real world. In this book, readers learn how to use instructions to build their own drone. This nonfiction...

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

"Coleccion de cuentos que suponen un retrato de la cultura indigena, para lo cual el autor tuvo que crerar ambientes, escenarios, situaciones y personajes reconocibles con claridad como parte de la geografia fisica, mitica e ideologica. Clasico de la literatura indigenista. Supersticiones, trato conyugal, tradiciones, religiosidad... el autor nos ofrece estampas increibles y risuenas de estos pueblos acorralados por nuestra civilizacion."