Ojos

Explores snakes and describes how they move, hunt, eat and mate. Includes fact boxes with information about snake life.

Mathematics constitutes ideal material for exercising the art of learning and thinking. For this it is necessary that the classroom has a stimulating atmosphere which requires determined attitudes and beliefs. The book combines theory and practice and responds to questions such as these: to think in the mathematics class? on what does the knowledge of solving problems really consist of? what are the beliefs and which are the most common ones among the students? how to diagnose, evaluate and, in some cases to modify, the systems of beliefs of the pupil?).

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.

“Al tener el armario vacío, pude observar en el fondo del lateral derecho una hendidura que me produjo curiosidad, porque pensé que se estaba estropeando, aunque las condiciones de temperatura y humedad eran óptimas para su conservación. Pasé los dedos por ella y vi una tabla que se diferenciaba, por la veta de la madera, del resto del suelo del armario; insistí tocando y estuve segura de que aquella tabla se podía levantar.” Demonios en el armario propone una búsqueda del ser a partir de una trama entretenida y una prosa fluida. María Montesinos, protagonista de la historia,...