Experimentos sorprendentes con la luz

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?).

In this bilingual picture book, astronaut José M. Hernández recounts his childhood as the son of Mexican migrant workers and his life-long dream to travel to the stars.

Pobre corazón reúne nueve relatos cuyo nexo de unión es el amor, o los sucedáneos del amor. Nacemos para amar, dicen los románticos, o amamos para perpetuar la especie, replican los científicos. En cualquier caso el amor aparece en nuestra vida iluminándola o ensombreciéndola, dándole a veces un sentido, obsesionando siempre su conciencia y trastornando su voluntad: amor conyugal o adúltero, infantil o senil, ocasional o permanente, real o imaginado, ansiado, desdeñado, gozado, sufrido, pero cada uno de ellos con vocación de amor verdadero.

Few kids can resist jumping into a big puddle. Getting wet can be fun. Learning to describe objects as wet can be fun, too, as evidenced in the bright, entertaining photographs and simple, engaging text in this motivating book. Readers will love to identify the objects within these pages, selected to appeal to them, and use the objects to comprehend new vocabulary words in corresponding sentences.