The students in Michael Dubson’s physics class at the University of Colorado fell silent as a multiple-choice question flashed on a screen, sending them scrambling for small white devices on their desks.
Within seconds, a monitor on Dubson’s desk told him that 92 percent of the class had correctly answered the question on kinetic energy, a sign that they grasped the concept.
Student response systems, or clickers—not unlike gadgets used on television game shows—first appeared in college classrooms over a decade ago and have since spread to just about every college and university in the country, thanks to cheaper and better technology.…Read More