Unlock Level 4 Listening, Speaking & Critical Thinking Student's Book + digital pack

Unlock offers 56 hours per Student's Book, which is extendable to 90 hours with the Classroom App, Online Workbook and other additional activities in the Teacher's Manual and Development Pack. Unlock is a paired-skills course with two separate Student's Books per level. For levels 1-5 (CEFR A1 - C1), these are Reading, Writing and Critical Thinking and Listening, Speaking and Critical Thinking. They share the same unit topics, so you have access to a wide range of material at each level. Each Student's Book provides access to the Classroom App and Online Workbook.