La resolución de problemas

Duelos, venenos, traiciones, perros sanguinarios y aborígenes altivos, entre otros, conforman el marco escogido por Gonzalo España para estos ocho relatos, concebidos magistralmente como un homenaje a la valentía y audacia de aquellos que dieron forma a nuestro legado histórico.

Can you find these in the book? robin, tulip. What is your favorite season? Books in the Seasons series explore seasonal changes from a child's point of view. Fin out about the sights, sounds, tastes, and smells that each season brings.

Games and projects introduce the concepts of coordinates and angles and how to find location and position.

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...