Interchange 2 Presentation Plus USB

　　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. Level 2 Presentation Plus allows teachers to present the Student's Book, Workbook, and video activity worksheets, play the class audio and the video program, and display scripts and answer keys. Teachers can mark up and add links to the components in addition to saving their sessions, and can also connect to Cambridge Dictionaries Online for additional reference and language support.