La fábula de la montaña mágica

Did you know that nature is the world's largest science and engineering lab? Learn how designers and engineers use biomimicry to create or improve products. This title supports NGSS for Engineering Design.

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.

When a Roman widow, Cartila, shows unusual interest in Flavia's father, Flavia decides to discover Cartila's true motives by performing twelve tasks, just like the Greek hero Hercules.

A flexible suite of resources providing full coverage of the Cambridge IGCSE® Spanish as a First Language syllabus (0502) for first examination in 2015. Written by practising teachers, this workbook helps students further develop the skills acquired through the course. Practical exercises expand and enhance the materials in the coursebook, supporting students through the Cambridge IGCSE® Spanish as a First Language course.