La historia de las innovaciones victorianas: Fracciones equivalentes (The History of Victorian Innovations: Equivalent Fractions)

Take a virtual tour of the Smithsonian National Zoo’s Small Mammal House with this high-interest STEAM book! Along the way, learn how zookeepers designed a habitat for the black-footed ferret, an animal once thought to be extinct. You’ll also learn about the many factors the keepers take into consideration when designing zoo enclosures. Created in collaboration with the Smithsonian Institution, this Spanish STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students...

Las personas adolescentes en su tránsito hacia la vida adulta atraviesan por una serie de dificultades y riesgos, unos comunes a todas y otros específicos de colectivos que están en una situación de mayor vulnerabilidad. Muchos de los factores que influyen sobre estas dificultades son comunes a todas ellas, pero las transformaciones sociales y los avances tecnológicos están haciendo que estas dificultades y estos riesgos cambien, que la intervención preventiva se enfrente constantemente a nuevos retos.

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!

Healthy Habits is a collection of four stories featuring the Chiminis, fictitious characters that live in the forest and are as small as pine cones. In each story, one of the Chiminis has an adventure that highlights the importance of hygiene, a good diet, and exercise, and offers general health advice.

Dennis Chávez : the first Hispanic US senator -- Cover -- Title Page -- Copyright Page -- Dedication -- Chapter One -- Chapter Two -- Chapter Three -- Chapter Four -- Chapter Five -- Chapter Six -- Chapter Seven -- Chapter Eight -- Chapter Nine -- Chapter Ten -- Chapter Eleven -- Chapter Twelve -- Chapter Thirteen -- Chapter Fourteen -- Chapter Fifteen -- Chapter Sixteen -- Dennis Chávez, el primer senador hispano de los Estados Unidos -- Cubierta -- Portadilla -- Créditos -- Dedicatoria -- CapÃtulo uno -- CapÃtulo dos -- CapÃtulo tres -- CapÃtulo cuatro -- CapÃtulo cinco --...