México ; y, Viaje al país de los tarahumaras

One of the most popular narrators of his time, Arthur Conan Doyle, was a visionary man with attitudes which were far ahead of his time. In this book we will know in depth his biography, his work, beyond the creation of the illustrious Sherlock Holmes, and his spiritualistic inquisitiveness.

Intenta decir "Tres tristes tigres, tragaban trigo en un trigal, en tres tristes trasto, tragaban trigo tres tristes tigres" tres veces seguidas cada vez más rápida que la anterior o trata de decir "Pablito clavó un clavito, en la calva de un calvito, en la calva de un calvito, un clavito clavó Pablito." En este libro encontraras una enorme colección de trabalenguas, adivinanzas, acertijos y enigmas matemáticos para que tengas horas y horas de diversión con tus niños, los trabalenguas cada uno más difíciles que el otro, desafiaran los músculos de tu boca. Además los trabalenguas...

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...

Cynthia Ann Parkers family moved to Central Texas when she was about nine years old. A year later, a large force of Comanche warriors attacked Fort Parker and seized Cynthia Ann and four other captives. The other four were eventually released, but she lived among the Indians for 25 years, immersed in the Comanche way of life. Though given a number of opportunities to go back to her white family, she always chose her life with the Comanche, choosing instead to stay with her husband and children. She eventually returned to white society as an adult.