Teach with confidence, using the world\'s favorite English course.
This gives access to videos and hundreds of automatically graded exercises, and works on PCs and Macs..
Inside each Book is a single-use code for Online Self-Study material.
This Intro Level Student\'s Book A includes units 1-8, four progress checks, and a Grammar Plus section to ensure that students receive all of the practice they need.
Interchange is a four-level, American English course that has been used by over 50 million students worldwide.
Teach with confidence, using the world\'s favorite English course