The Bill and Melinda Gates Foundation is donating $1.1 million to study the effectiveness of a wristband that tracks a student’s level of engagement.
The wristband uses the body’s natural electricity to measure emotional arousal, says Edwin Kee at Ubergizmo. Whenever someone gets excited, for example, their electrodermal activity shoots up. When they’re bored or relaxed, that level goes down. The bracelet, which is still in its early phases, seeks to chart a student’s mood while in class.