Large class sizes are increasingly common in mechanical engineering undergraduate courses due to increased enrollments of undergraduate students with a disproportional investment to faculty numbers. Simultaneously, active learning is promoted to faculty members over traditional lectures due to published findings of improved student learning. Active learning typically involves a break in the lecture to allow for problem solving, discussion, or other activities. One common type of active learning in large classes is classroom response systems (e.g. clickers). Based on classroom experience, the use of active learning with classroom response systems in large classes, particularly in the first year, can lead to a disruptive learning environment. In this preliminary study, a 1 st year course and a 4 th year course (n=120 and 135, respectively) were surveyed in Fall of 2015 to quantify student's ratings of active learning with classroom response systems and disruption. The student's impressions of active learning (e.g., interactive clicker problem solving) were assessed using a survey at the end of the course. Students were overwhelmingly positive about the advantages of active learning (>80% responded favorably) in the both courses. However, the students in the 1 st year course had less positive feedback on active learning and higher ratings of disruption in the classroom than the students in the 4 th year course (34% rated as disruptive in 1 st year, 14% rated disruptive in the 4 th year). The class rank, where higher values represented a greater number of years past secondary school, was positively correlated with rankings of a more disruptive environment suggesting that nontraditional students may find active learning more disruptive. This preliminary study suggests that using classroom response systems (clickers) in the 1 st year curriculum with large class sizes may lead students to feel that the class was disruptive and that active learning was not as positive of an experience as active learning environments later in the curriculum.