La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of reusing resources and knowledge. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how reusing resources and knowledge can be helpful in the real world. In this book, readers learn about the Bill of Rights and how parts of it...

This Book Explains The Water Cycle And How Water Is Used To Generate Many Forms Of Electricity. It Introduces Students To The Importance Of Keeping Our Water Supplies Clean. Has Detailed Information About The Effects Water Has On Different Formations On Our Earth. From Weathering To Landslides, It Can All Be Found In This Title.

Retells the adventures of the demi-god Hercules as he struggles to accomplish seemingly impossible tasks.

En casa de la familia Vilarejo todo ha dado la vuelta, como un calcetín. Han empequeñecido de tal manera que ahora viven, atemorizados, en el escondrijo del ratón Rimsky.