Trenes de Alta Velocidad (Bullet Trains)

The asteroid belt between Mars and Jupiter is an intriguing area of our solar system. Scientists have counted over 670,000 known asteroids there, but there could be millions more not yet found. Readers will discover much more about the asteroid belt in this highinterest book, which blends science and math. They'll read about several topics, such as space missions to the asteroid belt and the difference between an asteroid and a planet, and solve associated math problems-just like actual space scientists do!

Spanish speakers can now learn the truly inspiring story of the first Latin Supreme Court Justice. Los hispanohablantes pueden ahora conocer la historia verdaderamente inspiradora de la primera jueza latina del Tribunal Supremo. Outspoken, energetic, and fun, Sonia Sotomayor has managed to turn every struggle in life into a triumph. Born in the Bronx to immigrant parents from Puerto Rico, Sonia found out at age nine that she had diabetes, a serious illness now but an even more dangerous one fifty years ago. How did young Sonia handle the devastating news? She learned to give herself her daily ...

Learn the history of number systems with this engaging Spanish book! This text combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn place value while reading about the number systems of the Egyptians and Romans, and also learn important vocabulary terms like cuneiform, binary systems, roman numerals, and more! The full-color images, math charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and...

La novela traza una l&ínea que separa al hombre del genio. El azar te regala el talento; la t&écnica y el estudio lo sacan a la luz. Lo que uno tiene dentro es lo que te hace pintor. Hay artistas que atesoran, dentro de s&í, cuadros que nunca podr&án ense&ñar a nadie al no tener la habilidad de sacarlos de su mente. Pero... &¿y si la obra maestra ya existe y no coincide con la visi&ón del genio creador? &¿Y si adem&ás ya cuelga en una catedral del arte?, &¿qu&é hacer entonces? Se impone una soluci&ón dr&ástica: es preciso robar el cuadro. El genio, su hijo, un falsificador y un...