En la tierra (On Land)

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.

The Grand Canyon is a "grand" place to learn data analysis! Through an examination of its rocks and fossils, students will learn data analysis while reading about a fun-filled trip to Grand Canyon National Park. This Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary,...

¿Qué tipos de animales viven en la selva tropical? Entra a la jungla para aprender todo acerca de estas criaturas fascinantes.

¿Cuál es tu día favorito de la semana? En ¡Viva! ¡Es sábado!/Hooray! It’s Saturday!, algo importante pasa cada día. ¡Pero el sábado, esta familia se divierte! (What is your favorite day of the week? In ¡Viva! ¡Es sábado!, something important happens each day!) Young learners learn the days of the week as they go to the park, attend school, have piano lessons, play basketball and more! From Sunday to Saturday, young readers will learn all of the days of the week in this delightfully-illustrated book. Learn simple English words and phrases with the corresponding version Hooray!...