1. The document introduces Turning Point, a personal response system (PRS) that can be used in lectures to engage students through interactive polling and real-time assessment. 2. Turning Point works by displaying multiple choice or short answer questions during a presentation, allowing students to respond using individual keypads, and immediately showing the responses. 3. The system provides benefits like active learning, feedback, participation tracking, and analytics to evaluate student understanding and learning gains. It can be used for various in-class activities like checking comprehension, debates, and assessments.