Audience response systems (ARS), commonly known as clickers, are tools that help engage students in large classrooms. These systems allow students to respond to questions using handheld devices, enabling instructors to instantly collect and display responses. ARS technology has been used in various educational fields and at all levels of education. The primary goals of ARS questions include increasing student interaction, assessing understanding, and improving learning outcomes. While ARS use can reduce lecture time, it often leads to better student performance on exams and a more active classroom environment. These systems are particularly useful for monitoring peer learning in large lectures. Clickers are small, handheld devices that transmit answers via buttons. Modern clickers are wireless and use radiofrequency signals, allowing for strong, interference-free communication. Each clicker has a unique signal, enabling individual student responses to be tracked. ARS technology has been successfully used in a wide range of courses, from introductory science classes to business and psychology. Instructors report positive effects on student engagement, attendance, and understanding, although some challenges remain, such as student anxiety over grades and technical issues. Clickers can help identify student misunderstandings and improve learning through formative assessment. They also encourage active participation and discussion, making lectures more interactive. Research suggests that ARS can improve exam scores, increase attendance, and reduce student attrition. However, the effectiveness of clickers depends on how they are used, with careful question design and integration into lectures being crucial. Instructors should consider the purpose of using clickers, align grading with learning goals, and ensure students understand the system's benefits. Best practices for using clickers include planning questions to align with learning objectives, explaining the system to students, and using clicker data to adjust teaching. Instructors should also manage technical issues, encourage peer learning, and reduce student anxiety by providing clear grading criteria. Overall, clickers are a valuable tool for enhancing student engagement and learning in large classrooms, but their success depends on thoughtful implementation and effective use.Audience response systems (ARS), commonly known as clickers, are tools that help engage students in large classrooms. These systems allow students to respond to questions using handheld devices, enabling instructors to instantly collect and display responses. ARS technology has been used in various educational fields and at all levels of education. The primary goals of ARS questions include increasing student interaction, assessing understanding, and improving learning outcomes. While ARS use can reduce lecture time, it often leads to better student performance on exams and a more active classroom environment. These systems are particularly useful for monitoring peer learning in large lectures. Clickers are small, handheld devices that transmit answers via buttons. Modern clickers are wireless and use radiofrequency signals, allowing for strong, interference-free communication. Each clicker has a unique signal, enabling individual student responses to be tracked. ARS technology has been successfully used in a wide range of courses, from introductory science classes to business and psychology. Instructors report positive effects on student engagement, attendance, and understanding, although some challenges remain, such as student anxiety over grades and technical issues. Clickers can help identify student misunderstandings and improve learning through formative assessment. They also encourage active participation and discussion, making lectures more interactive. Research suggests that ARS can improve exam scores, increase attendance, and reduce student attrition. However, the effectiveness of clickers depends on how they are used, with careful question design and integration into lectures being crucial. Instructors should consider the purpose of using clickers, align grading with learning goals, and ensure students understand the system's benefits. Best practices for using clickers include planning questions to align with learning objectives, explaining the system to students, and using clicker data to adjust teaching. Instructors should also manage technical issues, encourage peer learning, and reduce student anxiety by providing clear grading criteria. Overall, clickers are a valuable tool for enhancing student engagement and learning in large classrooms, but their success depends on thoughtful implementation and effective use.