The Interchange Third Edition Teacher's Resource Book provides teachers with fun and engaging classroom activities that supplement the material in the Student's Book. The book contains photocopiable activities for extra practice in listening, grammar, writing, and vocabulary, with answers and audio scripts provided. An Audio CD is included for use with the listening section.

    Not just because these structures are beautiful and shrouded in mystery, but because they were constructed on a scale we can't comprehend, thousands of years ago. The Missing Tech Behind The World’s Greatest Structures Modern science claims everything boils down to physical labor and primitive tools, yet can't replicate an effective recreation strategy. Let's explore: - The Great Pyramids Of Giza - Stonehenge - Derinkuyu Underground City - Pumapunku and some more added information about: - Gobekli Tepe - Nan Madol - Hypogeum of Hal-Saflieni - Coral Castle - Russian Megalithic Stones Ancient engineers? Forgotten technology? Let us know what you think! Take action and grab your copy now!