Interchange. Intro A. Student's Book with Online Self-Study; Cambridge, 2017

Teach with confidence, using the world's favorite English course.

Interchange is a four-level, American English course that has been used by over 50 million students worldwide. 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. Inside each book is a single-use code for online self-study material. This gives access to videos and hundreds of automatically graded exercises, and works on PCs and Macs.