Halloween

En este diccionario ilustrado para niños Clifford, el gran perro colorado, y sus amigos describen cada palabra por medio de oraciones sencillas. Incluye una sección especial sobre los números, los opuestos y mucho más.

Uncover some of the most infamous disasters in the world including the Hindenburg, the sinking of the Titanic, the Dust Bowl, BP oil spill, the Hiroshima and Nagasaki atomic bombs, and the Chernobyl disaster in this shocking book. With its intriguing facts, vivid images, helpful graphs and maps, and informational text, this fascinating, Spanish-translated nonfiction title will keep readers informed, engaged, and interested from cover to cover.

A stinky look at the history of personal hygiene reveals fascinating facts, such as the invention of the toilet, how many times Queen Elizabeth I had a bath, how the first sewers were built, and much more.

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?).