Brave New World

The Bill & Melinda Gates Foundation, which has poured more than $4 billion into efforts to transform public education in the U.S., is pushing to develop an "engagement pedometer." Biometric devices wrapped around the wrists of students would identify which classroom moments excite and interest them -- and which fall flat.

The foundation has given $1.4 million in grants to several university researchers to begin testing the devices in middle-school classrooms this fall.

The biometric bracelets, produced by a Massachusetts startup company, Affectiva Inc, send a small current across the skin and then measure subtle changes in electrical charges as the sympathetic nervous system responds to stimuli. The wireless devices have been used in pilot tests to gauge consumers' emotional response to advertising.

[...]

Any device that helps a teacher identify and meet student needs "is a good thing," said Jacobs, vice president of the National Council on Teacher Quality, an advocacy group that receives funding from the Gates Foundation. "We have to be really open to what technology can bring."

[...]

In fact the sensors do not distinguish between fear and interest, between boredom and relaxation, so researchers plan to videotape each class that uses the biosensors. That way they can see what was happening in the classroom at moments of peak engagement.

[...]

Gates officials hope the devices, known as Q Sensors, can become a common classroom tool, enabling teachers to see, in real time, which kids are tuned in and which are zoned out.

  Reuters

This should make you uncomfortable.  Thought police.  Think about it.

...but hey, do what you want...you will anyway.