La antigua Grecia (Ancient Greece)

Algorithms might sound like a complicated tech term, but don't be intimidated, people actually use them every day. Using accessible language and full-color photographs, this book simplifies algorithms in an easy-to-understand way. Readers will be amazed to learn that an algorithm is just a set of steps for computers to follow to get things done. STEM topics from the Next Generation Science Standards are emphasized throughout the text. Sidebars featuring key terms help readers grow their tech vocabulary, and fact boxes provide additional opportunities to learn.

Meet Ada Lovelace, the British mathematician and daughter of poet Lord Byron. Part of the beloved Little People, BIG DREAMS series, this inspiring and informative little biography follows the colorful life of Lord Byron’s daughter, from her early love of logic, to her plans for the world's first computer program. As a child, Ada had a big imagination and a talent for mathematics. She grew up in a noble household in England, where she dedicated herself to studying. Her work with the famous inventor, Charles Babbage, on a very early kind of computer made her the world's first computer...

Desciende a simas desconocidas y al fondo de los océanos, escala hasta las cimas de las montañas o adéntrate en las selvas tropicales, atraviesa desiertos abrasadores, continentes helados, acude al nacimiento de la aventura humana, da la vuelta al mundo en avión solar... ¡Aquí están algunas de las misiones llevadas a cabo por apasionados exploradores y descubridores! Después de casi 100 años, y hoy más que nunca, la Sociedad de los Exploradores Franceses recopila las hazañas de estos hombres y mujeres que sobrepasaron los límites para conocer mejor el mundo y sus diversos pueblos...

November 1940. A circus parade walks through the streets of Warsaw, waving a flag and singing. They are 160 Jewish children, forced by the Nazis to leave their beloved orphanage. It's a sad occasion, but led by Doctor Korczak, their inspirational director, the children are defiantly joyful. Their new home is in the ghetto, a prison for Jews. Two years later they board the train that will carry them away to the death camps. Offered his freedom, Doctor Korczak refuses to abandon the children and proudly joins them on their last journey. This profoundly moving illustrated book is based on the...

¿QUIÉN NOS VIGILA... Y POR QUÉ? Subimos a Instagram cada momento de nuestra vida, compartimos nuestros pensamientos íntimos en Facebook y vamos dejando nuestros datos personales cuando navegamos en internet. Cada vez que hacemos clic, escribimos, damos un «me gusta», aceptamos una solicitud de amistad, compramos, o incluso cuando vamos andando por la calle, ¡nos vigilan más ojos de los que podemos imaginar! Dentro y fuera de internet, las empresas, los gobiernos y las fuerzas de seguridad van recopilando información sobre nosotros. Dicen que así estamos más seguros, o que eso nos...