Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

En este cuaderno se vuelven a estudiar las grafías de los fonemas /z/, /k/, /g/, /j/, /ll/, /y/. Se estudian también diversas palabras con h y con b. También aprenderás la regla «ante consonante b», en palabras con sílabas que comienzan por bl y br.

In what ways are the branches of government like a basketball game? How can a school yard game's rules liken themselves to a constitution? Through engaging analogies and introductions, our new Spanish-language government series gets English language learners ready for election 2008. Correlated to the fourth and fifth grade social studies curriculum, My American Government introduces students to how our government works. Students learn about the U.S. Constitution, the branches of government, citizens' basic rights, and how we elect our leaders.

Durante un ataque sarraceno, Diego de Malagón, hijo de un posadero, es testigo del secuestro de sus hermanas. Consigue huir a Toledo donde conoce a Galib, un veterinario mudéjar de gran prestigio, que le acoge como aprendiz y le muestra el poder y la belleza de la albeitería, la ciencia que estudia la curación de los animales más importantes para los hombres: los caballos. Pero a causa de un malentendido con la esposa de Galib, Diego debe salir huyendo de nuevo. A partir de ese momento, el protagonista de esta novela hurgará en las entrañas de la biblioteca de un monasterio...

Tom es un tortuguito gris al que todos llaman lento. Cansado de esta situación, después de hablar con la caracola Pita, cambia poquito a poco su actitud.... Sin darse cuenta algo se transforma en él y así, en los demás también. Una historia simple y tierna para hablar con los más pequeños de aceptación, diversidad y empatía.