Matemáticas en el cinturón de asteroides (Math in the Asteroid Belt)

Para un aprendizaje progresivo del frances en un curso de 60 a 80 horas. En un mismo volumen el alumno tendra el Libro del alumno y el Cuaderno de ejercicios ademas de los CD audios. El libro contiene 6 unidades con actividades en contexto, vocabulario, gramatica, informacion sociocultural, un memento gramatical y una preparacion al DELF. Nivel A2

Escrito por Claudia Romo Edelman y Sara E. Echenique, con ilustraciones por Manuel Gutierrez, Hispanic Star en español: Roberto Clemente, forma parte de una emocionante serie de biografías para lectores jovenes, perfecto para los fanaticos de la serie ¿Quién fue? Conoce al miembro del Salón de la Fama del Béisbol, Roberto Clemente, antes solo un niño de Carolina, Puerto Rico, al que le encantaba jugar pelota en las calles de su pueblo con sus parientes y amigos. Roberto, un estelar jardinero derecho, jugó dieciocho temporadas en las Grandes Ligas, pero su vida terminó trágicamente...

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for the film Jurassic Park. Take a trip through dinosaur time to meet these deadly dinosaurs face-to-face: The Variraptor had pointy teeth with grooves like steak knives to saw through meat! The Draeomaeosaurus was the first raptor ever discovered. It had a very large brain! The Microraptor was ...

Frogs and toads are some of the most confusing amphibians to classify. While some of their physical attributes are easy to tell apart, if we take a deeper look at these animals we find it’s not quite that simple. From poisonous skin and bulging eyes to their amazing life cycles, these creatures are as interesting to study as they are difficult to categorize. Once we break down the difference between “true” frogs and “true” toads, it’s easy to see why so many have trouble telling the two creatures apart!