Activity Database

Activity Authors
Activity Circles
Click To Sort By
  • 3rd - 5th (1)
  • 6th - 8th (1)
  • 9th - 12th (1)
  • College Level (1)
  • For Teachers (1)
  • Mathematical Games (1)
  • Mathematical Modeling (1)
  • Problem Solving / General (1)
Supporting Materials
Supporting Materials
  • Facilitator Guides (1)
  • Photos & Videos (1)
  • Virtual Tools (1)
Session Styles
Session Styles
  • Integrates Technology (1)
  • Multiple Representations (1)
  • Try a Smaller Problem (1)
Mathematical Practices
Mathematical Practices
  • MP1 - Make sense of problems and persevere in solving them. (1)
  • MP3 - Construct viable arguments and critique others' reasoning. (1)
  • MP4 - Model with mathematics. (1)
  • MP6 - Attend to precision. (1)

The Futurama Theorem


In the television show Futurama, Professor Farnsworth and Amy decide to try out their newly finished “Mind-Switcher” invention on themselves. When they try to switch back, they discover a key flaw in the machine’s design: it will not allow the same pair of bodies to be used in the machine more than once. Is there a way to restore their minds back to their original bodies?

The Futurama theorem is a real-life mathematical theorem invented by Futurama writer Ken Keeler (who holds a PhD in applied mathematics), purely for use in the Season 6 episode “The Prisoner of Benda”.