Powers of Two

  Friday afternoon, my students are taking a test and I check my school email.  The Tech department sent out a URL for us to consider blocking in our classroom because the students are playing some kind of addictive game.
  You know what I'm thinking at this point, right?  I promptly surf over to the site and start playing the game.  Gotta check out what the student are up to these days, right?

Do you think the exams were graded super-fast? Well, I had an important weekend project...