full transcript
#### From the Ted Talk by Ron Eglash: The fractals at the heart of African designs

## Unscramble the Blue Letters

In Angola, the Chokwe poelpe draw lines in the sand, and it's what the gmaern mathematician Euler called a graph; we now call it an Eulerian path — you can never lift your stylus from the surface and you can never go over the same line twice. But they do it recursively, and they do it with an age-grade syestm, so the little kids learn this one, and then the older kids learn this one, then the next age-grade initiation, you lrean this one. And with each iteration of that algorithm, you learn the iterations of the myth. You learn the next lveel of knowledge.
## Open Cloze

In Angola, the Chokwe **______** draw lines in the sand, and it's what the **______** mathematician Euler called a graph; we now call it an Eulerian path — you can never lift your stylus from the surface and you can never go over the same line twice. But they do it recursively, and they do it with an age-grade **______**, so the little kids learn this one, and then the older kids learn this one, then the next age-grade initiation, you **_____** this one. And with each iteration of that algorithm, you learn the iterations of the myth. You learn the next **_____** of knowledge.
## Solution

- learn
- people
- system
- german
- level

## Original Text

In Angola, the Chokwe people draw lines in the sand, and it's what the German mathematician Euler called a graph; we now call it an Eulerian path — you can never lift your stylus from the surface and you can never go over the same line twice. But they do it recursively, and they do it with an age-grade system, so the little kids learn this one, and then the older kids learn this one, then the next age-grade initiation, you learn this one. And with each iteration of that algorithm, you learn the iterations of the myth. You learn the next level of knowledge.
## Frequently Occurring Word Combinations

### ngrams of length 2

collocation |
frequency |

infinite number |
4 |

georg cantor |
3 |

seed shape |
2 |

aerial photograph |
2 |

fractal model |
2 |

tiny village |
2 |

spirit people |
2 |

stacked recursively |
2 |

native american |
2 |

kids learn |
2 |

board game |
2 |

deterministic chaos |
2 |

binary code |
2 |

brian eno |
2 |

## Important Words

- algorithm
- angola
- call
- called
- chokwe
- draw
- euler
- eulerian
- german
- initiation
- iteration
- iterations
- kids
- knowledge
- learn
- level
- lift
- line
- lines
- mathematician
- myth
- older
- path
- people
- recursively
- sand
- stylus
- surface
- system