¡Tornados y huracanes! (Tornadoes and Hurricanes!) 6-Pack

Families can be big or small, but all resemble each other in one aspect: they have a past and a present that, is also part of a broader history, that of a culture or race, or that of the world. The reader will see that family trees are used both by historians and everyday people who trace generations of relatives. Although family trees imply blood relations, the ties of love and friendship are often just as important.

Design a flexible protective layer for a space suit. Space suits have come a long way. The look and function of space suits has evolved over time, but their purpose has always been the same--to keep astronauts safe. From the first suits worn during the Mercury missions, to the latest suits being tested by NASA, there have been great improvements. Learn all about the science behind space suits and how they have changed over time. Created in collaboration with the Smithsonian Institution, this Spanish Smithsonian Informational Text builds reading skills while engaging students' curiosity about...

Esta antologâia para jâovenes y niänos contiene 64 poemas de 19 paâises, mezclando el trabajo de los poetas indâigenas de antes de la Conquista con lo de escritores actuales. Los textos reunidos van de la contemplaciâon de la naturaleza a los disparates,de la polâitica a la magia.

Los cuadernos de matemáticas y lengua son un material de apoyo al libro del alumno. Siguen la secuencia de contenidos de los libros del Proyecto Brújula, proponen una serie de actividades cuya finalidad es afianzar los contenidos explicados en los libros del alumno y al mismo tiempo dar respuesta a diversas necesidades, tanto por parte de profesores como de padres, cuyos alumnos o hijos necesitan reforzar los conocimientos en la etapa de educación primaria en las áreas de Lengua y Matemáticas.