Spot It

Legend

Interactive | |

Video |

Making 3 object cards: Construct your own 3-object deck |

Under construction....

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Stretching Monsters: Help two monsters stretch out and relax |

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Rational slopes on video game screens: Interactive that explores how many times lines leave the right and the top of the screen before returning to the origin |

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Irrational doesn't mean everything!: Looks like it fills the screen, but actually not! |

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Double Hits!: Interactive that explores what happens to a grid that isn't made up of a prime side |

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What is Spot It?: Explains Spot It. Constructs a 2-object deck. |

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Cards as Lines: Seeing cards as lines, and getting distracted by what lines are. |

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Parallel Lines: Adding an extra point to every line for the slope, and now all lines cross! |

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Wait a Minute, that's Irrational!: Noticing that irrational slopes look like they fill the screen |

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Missing Almost Everything!: Making sense of irrational slope |

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Back to the 80s: Making sense of the '80s and discrete slope |

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Spot It Cards: What all this has to do with Spot It |

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Duality: Spot It card counting |

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**Donuts:**

Stretching you mind to see a donut and eventually looking right out of an infinite forest!

**Age Range:**

10+, younger audiences will move slower, and won't get everything but the arguments and concepts are beautiful and well worth exposing to everyone!

**Mathematics:**

Elementary topology, rational and irrational numbers, including decimal expansions, using lines to generate rational approximations, and a brush with infinity

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**Finite Forests:**

Navigating a forest with and without bumping into trees, and what this tells us about Spot It!

**Age Range:**

11+ a very accessible introduction to modular arithmetic and finite geometry

**Mathematics:**

Subtleties of counting, modular (or clock) arithmetic, lines using modular arthmetic (a brush with projective space)

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**Spot It: Experimentation:**

Play Spot It. Simplify the game. Try making a deck of 2-object or a deck of 3-object cards. Culminates in a curious observation about lines

**Age Range:**

5+, everyone will enjoy these activities

**Mathematics:**

Exploring with Trial and Error. Simplifying and altering questions as a mode of inquiry. Causality

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**Straight Lines:**

What is a line? What does parallel mean? And how to describe a line mathematically

**Age Range:**

7+, younger audiences might need more guidance, and second half (describing the equation for a line) is more suitable for 11+

**Mathematics:**

Lines, parallel lines, lines in 2D and 3D, and the equation for a line

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