Juegos mentales

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...

Bacteria have a slimy reputation. They're too small to see with the human eye, so it's easy to let them slip past unnoticed. But, bacteria are part of our daily lives. In fact, they affect everything from milk to our moods. Get ready to zoom in on the hidden world of bacteria and explore the many ways that bacteria are being used in the modern world. This nonfiction reader seamlessly integrates the teaching of math and reading, and uses real-world examples to teach multiplication of mixed numbers. Text features include images, a glossary, an index, captions, and a table of contents to build...

Presents aerial photographs of various scenes from around the world including fishermen in Morocco, a farm on the island of Crete, and a mangrove forest in New Caledonia.

One of the skills employers want most in new hires is the ability to speak well. Public speaking can not only advance a person in almost any career but can also help an individual do better in school as well. Following the English Language Arts standards for Speaking and Listening, this book teaches readers why public speaking can be such an effective tool, how to craft a powerful speech, and how to overcome one of the most common problems people have with talking in front of a crowd�stage fright.