This photo was snapped [in fall of 2013] at Our Lady of Fatima Catholic Elementary school in Vaughan, Ontario, Canada. That’s the Principal and EcoTeacher riding the bikes in front of the students at the start of the presentation.
Students were invited to pedal to power the presentation. This system (2 bikes and 2 speakers) can be used for audiences up to 600 indoors. The Pedalometers display power levels to the students so they know when more power is needed.
Thanks to York Catholic School Board for the photo.