John Brown: El Ataque a Harpers Ferry/John Brown's Raid on Harpers Ferry

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

What would happen if the Moon disappeared? We would try every possible way to get it back. As in everyday life, this book shows us that the answers to our problems are sometimes so close we just can't see them.

¡Explora el maravilloso mundo de la química! Aprende junto con las químicas inspiradoras cuyas innovaciones cambiaron el mundo. Descubre el poder de la curiosidad y la resiliencia a través de una conversación entre una protagonista joven y valiente que hace preguntas sobre el mundo a su alrededor, y un narrador científicamente astuto cuyas respuestas son exactas y comprensibles para las mentes jóvenes. Las mujeres en la química es el lugar perfecto para que los niños empiecen sus propios viajes de descubrimientos y maravillas.

Encourage students to earn money for themselves with the examples in this Spanish-translated book! Young readers will learn the basic concepts they will need to make choices about spending or saving money they have earned. Engaging, primary source documents and images keep children reading as they build their literacy skills and social studies content knowledge.