Experimentos sencillos sobre el tiempo

Tells the story, through graphic novel format, of Harriet Tubman and her life as a leader on the Underground Railroad.

"'Aula internacional Nueva edición' es una rigurosa actualización de esa propuesta : un manual que mantiene el espíritu inicial, pero que recoge las sugerencias de los usuarios, que renueva su lenguaje gráfico y que incorpora las nuevas tecnologías de la información."--Editor.

800x600 Boys can be anything they want to be! This timely book joins and expands the gender-role conversation and gives middle-grade boys a welcome alternative message: that masculinity can mean many things. You won't find any stories of slaying dragons or saving princesses here. In Stories for Boys Who Dare to Be Different, author Ben Brooks-with the help of Quinton Wintor's striking full-color illustrations-offers a welcome alternative narrative: one that celebrates introverts and innovators, sensitivity and resilience, individuality and expression. It's an accessible compilation of 75...

Learn how zookeepers at the National Zoo keep the animals healthy and happy. This Spanish book features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.