Introduction to Using Clickers in Higher Education

Clickers (also known as Audience Response Systems, Classroom Communication Systems, and Personal Response Systems, among other things), are systems that support audience participation in lectures.

Some use these tools are used in large group sessions as part of efforts to -:

• Allow anonymous interaction
• These systems can be used to encourage anonymous answering of questions where the teacher feels that would be beneficial to encouraging participation, or for ethical reasons.
• Increase engagement
• Some teachers believe that asking the students questions at the start, or part way through a lecture can help keep the students focused.
• Start discussions
• Perhaps the most talked about use of Clickers is as part of the Peer Instruction method. In this method students would be asked to answer a question which is designed so that only students with a grasp of certain concepts will be able to answer it correctly. Students see the range of answers on a big screen and are asked to defend their answer to the people sitting next to them. They then vote again, and there should be a move towards the correct answer. The lecturer can then take over if they feel that is necessary.
• This seems to work best in subjects where a key to learning is helping students understand none-intuitive concepts. Examples are Physics (see the work of Eric Mayer, and watch a video of a presentation by him) or Mechanical Engineering (see the work at the Univerisity of Strathclyde).
• Aid Contingent Teaching and diagnosis of common misunderstandings
• A lecturer with well written questions can identify where lots of the class are misunderstanding a concept.
• Record answers
• If anonymity is not required, it is possible to record answers for individual student’s summative assessment.

If you want to look a bit more closely at some of these methods, especially Peer Instruction, the following journal articles might be of interest. 

• 'Examining the benefits and challenges of using audience response systems: A review of the literature' by Kay and LeSage (Computers and Education, 2009) is a major review of the literature in this area and is a must read article. It looks at the history of the technology and terms used to describe it, followed by an in-depth review of 67 peer-reviewed papers published from 2000 to 2007.
• ‘Characterizing the Effect of Seating Arrangement on Classroom Learning Using Neural Networks’ by  Monterola, Roxas and Carreon-Monterola (Complexity, 14.4, 2009) found that when using a type of Peer Instruction there were benefits to seating high aptitude students at the corners of the classroom rather than in any other planned or random seating arrangement.
• ‘A New Peer Instruction Method for Teaching Practical Skills in the Health Sciences: an Evaluation of the ‘Learning Trail’’ by Dollman (Advances in Health Sciences Education, 2005) looks at “an innovative application of peer-mediated instruction designed to enhance student learning in large practical classes."
• ‘An investigation of the effectiveness of electronic classroom communication systems in large lecture classes’ by Sharma, Khachan, Chan and O'Byrne (Australasian Journal of Education Technology, 2005). This describes their use of Clickers where “Students used the keypads to answer two step multiple choice problems after a discussion within their group. The questions were generated using students' answers from previous exams”.
• ‘Peer instruction: a case study for an introductory magnetism course’ by Lenaerts, Wieme and Van Zele (European Journal of Physics, 2003) notes "the positive impact of PI has been demonstrated... Special attention has been paid to the enhancement of the traditional lecture demonstrations by PI... The framework of Vygotsky's zone of proximal development is offered as a pedagogical explanation for the effectiveness of PI."
• ‘Peer Instruction versus Class-wide Discussion in Large Classes: a comparison of two interaction methods in the wired classroom‘ by Nicol and Boyle (Studies in Higher Education, 2003) reports on research where Clickers were used to make it easier to give immediate feedback to students and to help manage Peer Instruction. The study discovered that the type of dialogue and discussion sequence have important effects on learning.
• ‘Peer instruction: Results from a range of classrooms’ by Fagen, Crouch and Mazur (The Physics Teacher, 2002) notes users reported that writing good questions can be a major obstacle. When no suitable questions had been written students were asked to read before the lecture to cover breadth and then in-depth study occurred in the lecture.
• ‘Peer Instruction: Ten years of experience and results’ by Crouch and Mazur (American Journal of Physics, 2001) reports data from ten years of teaching with Peer Instruction (PI). They also look at how they have improved their use of PI, for example they have “replaced in-class reading quizzes with pre-class written responses to the reading, introduced a research-based mechanics textbook for portions of the course, and incorporated cooperative learning into the discussion sections as well as the lectures."