Un día de nuestras vidas (A Day in Our Lives) 6-Pack

Daniel got the best birthday present in the world: his grandfather's magic briefcase! What tricks is it hiding? What surprises does it contain? Close your eyes and make a wish. This book is full of magic!

In an entertaining way, shows how to add, subtract, multiply, and do long division without a calculator.

El libro consta de 11 unidades. Cada unidad comienza con una doble página de presentación. Los contenidos se organizan en apartados y subapartados. Los márgenes van adornados con diferentes elementos como curiosidades, contenidos para saber más, actividades experimentales y para investigar, etc. Hay ejemplos y problemas resueltos. En algunas de las unidades se ofrece una página con experiencias para realizar en el laboratorio. Una vez desarrollados todos los contenidos se ofrece una página con las ideas fundamentales de la unidad. La página titulada "La ciencia del siglo XXI" contiene...

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...