Barbie Me Primer Libro de Pegatinas de Numeros/Barbie My First Number Sticker Book

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...

En la actualidad, todas las organizaciones son en alguna manera “empresas de software”, ya que la calidad de sus sistemas de información se ha convertido en uno de sus principales objetivos estratégicos y, más que nunca, su propia supervivencia depende de la calidad de los productos y servicios informáticos. La industria del software tiene casi setenta años y en este período ha realizado grandes avances, ya que disponemos de lenguajes de programación más sofisticados, procesos de desarrollo más maduros, y las aplicaciones que se construyen en la actualidad son más complejas. Sin ...

Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.

Join the children in this book on a trip to the dentist. Going to the dentist can be fun, especially if you use addition to help you find answers to questions like these: How many teeth do you have? How many times should you floss your teeth each week? Make your next trip to the dentist an adventure with addition.