Here Dr Nik Reeves-McLaren, of Material Science and Engineering, speaks at the 2015 Winter TELFest, on his use of the LectureTools system in large lectures. He tells of his reasoning for exploring interactivity in lectures, how he used it, and the feedback from students. This talk is followed by another view of LectureTools by Prof Claire McGourlay. Here Dr Nik Reeves-McLaren, of Material Science and Engineering, speaks at the 2015 Winter TELFest, on his use of the LectureTools system in large lectures. He tells of his reasoning for exploring interactivity in lectures, how he used it, and the feedback from students. This talk is followed by another view of LectureTools by Prof Claire McGourlay. Here Dr Nik Reeves-McLaren, of Material Science and Engineering, speaks at the 2015 Winter TELFest, on his use of the LectureTools system in large lectures. He tells of his reasoning for exploring interactivity in lectures, how he used it, and the feedback from students. This talk is followed by another view of LectureTools by Prof Claire McGourlay.