- Connect is a fun, 4-level, multi-skills American English course especially written and designed for young adolescents. Workbook 4 provides additional reading and writing reinforcement of Student"s Book 4, which is a high-intermediate-level text for students aged 11-15. There is one Workbook page per Student"s Book lesson. Answer keys are in Teacher"s Edition 4. In the Check Yourself section, students assess their own performance. Workbook 4 can be done at home or in class.