Comenzó con una pizza (It Started With Pizza)

Practice data analysis while learning about endangered species! This title allows young readers to improve their understanding of data analysis and graphing methods, teaching them about probability and STEM skills through bar graphs and pictographs. This book includes engaging examples of wild animals who are endangered species, teaching readers about their habitats, their greatest threats, and their predicted populations. Vibrant images, exciting examples, and clear mathematical diagrams and charts engage readers while making them more confident in their data analysis skills.

Learn about the rich history of Mission San Luis Rey de Francia: how it started, the people who ran it, the indigenous population, and its legacy today.

Got a fan of snakes, lizards, and turtles? Dig into this beginner's guide to reptiles from Cathryn and John Sill, creators of the award-winning About... series. Author and educator Cathryn Sill explains in simple language the basic characteristics that all reptiles share, while offering a look at many of the animals that fall into this diverse category, including ever-popular lizards, snakes, and turtles. The beautifully detailed paintings of noted wildlife illustrator John Sill depict reptiles in their habitats and highlight their unique aspects. An afterword provides more detail on each...

Conviértete en un superdetective y ayuda a resolver el robo del siglo. Acaban de dar el aviso de un importante robo. Este será el primer caso de una joven detective y no parece fácil: lo único que consigue de la escena del delito es una muestra de ADN que extrae de un guante. ¿Podrá encontrar al ladrón solo con eso? En el núcleo de casi todas las células de nuestro cuerpo hay una molécula de ADN con un código único que le da al organismo instrucciones como «Crea dos piernas, dos brazos, dos ojos y una nariz». Pero ¿qué es el ADN exactamente? ¿Y cómo puede haber tanta...

Diccionario para escolares que incluye los significados de las palabras, modelo de verbos, palabras de uso científico y tecnológico, ejemplos de uso y cultura, regionalismos latinoamericanos, etc.