New Interchange Video Activity Book  accompanies New Interchange Video , designed to review and extend the topics and language presented in Level 3 of the New Interchange course. It can also provide the basis for an independent short course. A separate Video Teachers Guide offers intructions and complete video transcripts.The Video Activity Book contains 16 units that correspond to the sequences in Video .  Each unit includes previewing, viewing, and postviewing activities that provide learners with step-by-step support for understanding and working with the sequence.