Why has the modern educational establishment become so obsessed with standardized testing and uniformity of measurement? When did so many people start believing that you could plot learning as numbers and graphs — and still teach children what they need to know?
That’s what I kept thinking as I read about a $1.1 million project to look into designing “galvanic skin response” bracelets for students to wear that would measure their degree of engagement with what they were listening to. The goal is to find out whether physiological feedback from these sensors could tell teachers whether students are learning or not.
If you’re not familiar with the phrase “galvanic skin response,” it’s just the name for the process of measuring how electricity flows through the skin depending on changes in moisture. It’s the principle upon which so-called lie detectors work. (Those things are bogus, but that’s another story entirely.)
Is this really the way some people believe we should decide whether kids are learning? Are we going to keep going until we strap a sensor helmet on kids every morning so we can monitor their thoughts for the full day?

For a culture where God is dead, spiritual emergence is madness
Reality frequently doesn’t match fantasy when you know full story
Now that his wife is gone for good, man is left with memories and love
The ‘man in the mirror’ always turns out to be our worst enemy
What if repairing my worst flaw meant losing my greatest power?
Dead man’s watch always there to remind me of my own mortality
Drug raid in Birmingham points to folly and failure of the ‘drug war’
Why let your enemy control you by choosing to listen to his hate?
Something in us usually wants to believe next year will be different