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Este libro trata de facilitar dos aspectos: A-La labor docente del profesor, adaptando el contenido al cuestionario oficial, estructurando los temas y la materia ya que se facilita el desarrollo de esquemas, contenidos e incluyendo ejercicios resueltos, introduciendo los contenidos prácticos en el momento adecuado, relacionando el material de laboratorio utilizado para una mejor programación de las prácticas, limitando la exposición a mínimos razonables, ampliando la materia cuando de manipulaciones se trata, utilizando un lenguaje sencillo y directo y cuidando que las determinaciones,...

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...

Simple text and photographs show how common shapes can be put together to create new and different ones.

Take a trip through the different forests of the world to discover where forests are located and what types of animals are native to forests. This book features colorful pictures, a detailed map of forests on earth, and vocabulary related to forests.