4 ms·

It could be on any day—even the last—and would be a surprise.

• munchler 2y ago
  Really? Kids show up on the last day and know with certainty that the test is coming that day.
  • mcphage 2y ago
    Not if they consider “we won’t have the test at all” as a possibility.
    • munchler 2y ago
      What if the teacher writes the test day on a piece of paper at the beginning of the week and hides it in his desk? That way "we won't have the test at all" is no longer a possibility.
      • mcphage 2y ago
        I think that gets you back to impossible instructions—if the teacher had written "Friday", then on Friday the students wouldn't be surprised by the test on Friday. I guess, unless the students think it's possible the teacher left it blank or wrote "No Test This Week" or something on it?