We understand: after doing so much work over the weekend, your brain has reached a terminal learning-saturation-point. There is no more that you can discover from Marx, Aristotle, or Plato at the moment. There is still plenty to learn from a super-intelligent-archer-monkey, however. Introducing one of the most addicting games ever: Bloons.
Just make sure you turn the sound off before you start playing during class. Enjoy!