Un rayito de luz para cada día

¡Vamos criaturita, vamos! offers a simple introduction in Spanish to some of nature's most intriguing creatures, from the earthworm in the ground to the bee buzzing in a flower; from the spider in its web to the firefly lighting up the night sky.

"Deca̕ un poeta espaǫl que, en Nueva York, las estrellas le pareca̕n anuncios luminosos. A m,̕ en cambio, los anuncios luminosos me parecen estrellas, y Nueva York, es, en mi concepto, una ciudad romǹtica, no a pesar de su brutalidad y de su codicia, sino por elas precisamente. Por su brutalidad y su codicia, por su estridencia, por su violencia, por su culto de las cats̀trofes, por su sacrificio constante del pasado y del porvenir al momento presente, por la organizacin̤ comercial de sus crm̕enes y la organizacin̤ criminal de sus negocios, por su clima contradictorio, desmesurado e...

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?).

Discusses the things money can buy, what forms money can come in, including cash, check, and credit, and what a budget is.