4 ms·

Couldn't they just give the cards to students with truancy problems?

• chris_mahan 14y ago
  I think they need the cards to identify who those students are.
  • bloaf 14y ago
    But if refusing to wear them is an option with few consequences (or, more specifically, few consequences a delinquent student would care about) then do the ID tags really accomplish that goal? Consider that the alternative is simply having the teachers do a $0 roll call before each class. Indeed, ID cards seem like they might make identification more difficult, as they would allow unscrupulous students to trade tags and make it seem that their friends were in places that they were not.
    • patio11 14y ago
      $0 roll call before each class. That's about a $10 roll call, even if you assume the children's time and education is valueless. (Assumption: you can complete it in only 10% of the instructional time per day, teachers have a fully loaded cost of approximately $100 an hour.) The school would, quite literally, spend thousands of dollars a day on roll calls.
      • trhtrsh 14y ago
        You think roll call takes 5 minutes? If students have assigned seating, checking attendance takes <30 seconds. When you choose an appropriate data structure, the efficient algorithm (distributed seat finding + visual glance) is simple to implement :-)