¿Qué Son Los Proveedores y Consumidores? (What Are Producers and Consumers?)

Ana vence sus miedos y sus complejos y declara su amor a Javier, su nuevo profesor de Historia del Arte. Este tiene cosas más interesantes que hacer... Por ejemplo, meterse en un buen lío de tráfico de piezas de arte.

�Qu� pasar�a si te encontraras a un beb� b�ho en tu patio? �Sabr�as qu� hacer? �D�nde ir�as a pedir ayuda? �nete junto con Madie y Max mientras aprenden una valiosa lecci�n sobre un peque�o b�ho perdido en El rescate del beb� b�ho. El par de hermanos s�lo quer�an jugar beisbol. �Nunca esperaron encontrarse cara a cara con un animal salvaje! Esta historia nos recuerda a todos que vivimos en un mundo rodeados de animales salvajes, y esos animales se merecen nuestro respeto y tenemos que ser cautelosos.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

Narwhals are often called the "unicorns of the sea." But these fascinating creatures are members of the whale family. Read all about narwhals as you practice addition. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning addition easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving...