Use of tracking technology is increasingly common, but many wonder about its necessity
Do you know where your student is? At school? On the bus? Paying for lunch in the cafeteria?
Principals in thousands of the nation's schools know the answer because radio frequency chips are embedded in students' ID cards, or their schools are equipped with biometric scanners that can identify portions of a student's fingerprint, the iris of an eye or a vein in a palm.
Such technologies have become increasingly common in schools, which use them to take attendance, alert parents...