The statistic most often cited to support classroom polling is that the average human’s attention span begins to fade after 20 minutes. Few could pass a quiz on where this metric originated, but it is generally accepted that a focus refresh every 20 minutes can improve knowledge retention. Thus, the electronic poll has arisen as an engaging method of mental rebooting and simultaneous assessment of what subjects need more explanation.


About a decade into the wide use of hardware and software polling in classrooms has shown that students really do like it. Several free classroom polling platforms exist, and educators say that services such as Kahoot, which connect mobile devices for a real-time group survey, are ideal for the “BYOD, mixed device classroom.” But the next level on this is to connect to other classrooms via Google Hangout, Periscope, Skype or virtual conference, and play with students anywhere in the world.


Where do you go from there? Polling plus distance, plus collaboration. In addition to enabling wireless E-polling and connection with remote students via embedded third−party video conferencing and office apps, hardware like Kramer’s VIA Campus offers collaboration with up to six user screens on one main display, or up to 12 screens on two displays. From any laptop or mobile device, students and teachers can view the main display, edit documents together in real time, share any size file, or turn the main display into a digital whiteboard.