El trencaclosques de la granja

When the Louisiana Territory was added to the United States in 1803, it about doubled the size of the young nation. It took years to clarify its boundaries and explore every square mile. How this momentous purchase came to be and its implications on the future of the United States are explained in detail in this book. Uncomplicated maps and simple language help developing readers and those in need of review to understand the many changes in this land that started with its purchase in 1803.

Quick Minds is an exciting, six-level course for young learners in Spain that enhances your students' thinking skills, sharpening their memory while improving their language skills. The Activity Book mirrors the content of the Pupil's Book. It practises the core vocabulary and grammar and consolidates skills development, with a variety of exercise types. 'Do that!' sections provide opportunities for speaking, while the Review and Culture sections provide extra listening practice and 'Get it right!' pages cover problem areas for Spanish speakers. A Grammar Practice section at the end of the...

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...

This book introduces the reader to the nighttime world of the raccoon, including its habitat, activities, diet, and the unique things that it does.