Prism is a paired skills course focusing on critical thinking, academic skills, and language students need most to prepare for their college studies. Prism is a five-level (A1 to C1), American English paired-skills course (Reading/Writing and Listening/Speaking), created for students who need to develop a range of academic skills. This Level 4 (C1) Listening and Speaking Student's Book prepares students for college classes by developing their listening,...