Celebremos el Día de Cristóbal Colón (Celebrating Columbus Day)

These diaries feature the loves, friendships, and family lives of Pascualina and Aldonza, a.k.a Artilugia, providing positive messages and advice for adolescents. Each includes bookmarks, stickers, and plastic pocket pages for storing special items. This diary of Pascualina's younger sister, Aldonza, chronicles her attempt to reconnect with a lost love through the adoption of a gypsy alter ego, Artilugia. Estas agendas revelan los amores, amistades y la vida familiar de Pascualina y su hermanita Aldonza, también conocido como Artilugia, mientras proporcionan mensajes positivos y consejos...

In an entertaining way, shows how to add, subtract, multiply, and do long division without a calculator.

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?).

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.