Soy retro porque...

Five and counting! So far, astronomers have discovered five dwarf planets in our solar system. Pluto, which was once thought of as the ninth planet, is today classified as a dwarf planet. This book looks at the current dwarf planets, characteristics, size, and orbital patterns, as well as the three rules scientists follow to characterize these tiny, round space objects. Every day new discoveries are being made. Who knows how many dwarf planets we will find in the future! This book will allow students to understand that patterns in the natural world can be observed, used to describe phenomena, ...

Quinta entrega de la brillante y monumental saga Tirano, que narra el épico asedio de la isla de Rodas en el año 305 a.C. Una novela ambientada en la mayor guerra de la historia de la humanidad. Hacia 305 a.C., dos hombres se enfrentaron por la hegemonía del Mediterráneo: Tolomeo, señor de Egipto, y Antígono elTuerto, señor de Asia. Y, entre ambos, la estratégica isla de Rodas y la ciudad fortificada del mismo nombre, que ninguno podía permitirse ceder al enemigo. Para Demetrio, el inteligente aunque jactancioso hijo de Antígono, Rodas era una presa que debía tomarse a toda costa....

A trip to Comic-Con becomes an adventure in learning division! Join Zach as he travels to San Diego to attend his very first comic book convention. Along the way, learn about the history of comic books and comic book conventions, and meet the dedicated fans who make Comic-Con one of the most widely attended comic book conventions in the world. This Spanish book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, math charts and diagrams, sidebars, and practice problems make learning division relevant and fun....

Dentro de una atmósfera inquietante, una adolescente madura en torno a los días muertos del verano que pasaba en una vieka casona de familia.