Lobachevski

El libro debe servir de base para reconstruir de manera activa y significativa los contenidos matemáticos que se imparten en los currículos de las etapas correspondientes. La competencia docente se basa, entre otras cuestiones, en un conocimiento bien fundado de los contenidos que hay que trabajar en el aula. Las actividades que se incorporan también tienen la finalidad de colaborar en la construcción de ese conocimiento que consideramos fundamental para el desarrollo profesional.Temas centrales:El currículo de Matemáticas en la educación secundaria obligatoria y el bachillerato....

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these sea giants face-to-face: The Archelon was similar to a turtle, but its shell was made of crossed rib bone covered in rubbery skin! The Mososaurs had huge pointy jaws and grew to be fifty feet long! The Ichthyosaurs looked a lot...

Martin Luther King, Jr. believed in fighting for Civil Rights for all people. In this Spanish-translated biography, readers will learn about his inspirational life as he fought for equality of African Americans through nonviolence. The rich photos, supportive text, helpful glossary, timeline, table of contents, and index give readers important information for understanding King's fight against Jim Crow Laws. This 6-Pack includes six copies of this title and a lesson plan.

Cuando Paula, una niña inquieta y curiosa, conoce al Guardián del Tiempo no se imagina la gran aventura que la espera. Ambos viajan cuatro mil quinientos años hacia el pasado y la pequeña se sumergirá de lleno en la época del Neolítico. ¿Qué singulares aventuras le esperan a la intrépida protagonista? Una historia de amistad, valentía y superación de dificultades.

Mysterious ancient ruins, hidden deep in the jungle of southern Mexico In May 1840, explorers John Stephens and Frederick Catherwood road their mules along a steep, muddy jungle path. They were hoping to find the ruins of an ancient, deserted site in Mexico they knew only from visitors’ accounts. Through the trees, they spied the remains of a crumbling stone palace. Palenque! In the weeks they spent there, the men discovered intricately designed buildings and mysterious glyphs, or symbols. Who built this city? What did the glyphs mean? The questions remained largely unanswered until the...