Expansión de la nación (Expanding the Nation) 6-Pack

Simple text and photographs introduce the concept of "skip counting," or counting by groups of a certain number, and present items for practice.

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.

Learn about the many things humans can do to get warm when they are too cold. Created in collaboration with the Smithsonian Institution, this 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 step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in STEAM fields. Perfect for English language learners, this Spanish book builds 1st grade students’ early literacy skills.

África tiene muchas caras: exótica y misteriosa, peligrosa y cruel, triste y explorada. Pero es mucho más que eso, es el lugar del origen del hombre, una tierra llena de historia y cultura. Es un continente con una geografía variada: 54 países donde conviven hombres y mujeres de culturas diferentes, que se expresan en más de mil lenguas. En África hay muchos países, todos ellos muy diversos, muchas religiones, ciudades populosas, aldeas, grandes líderes, mitos y colores. Estas son las otras Áfricas que se muestran en este libro.