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  • Arrival: Part of a Whole

    math
    fractions
    intro to fractions
    converting to fractions
    decimals
    Ian analyzes the data received by the aliens and shares his discovery with Louise. He visualizes the data and expresses as a decimal the amount of data relative to negative space: 0.0833, which he says is equivalent to 1/12. The two present their findings to the rest of the team and suggest that they are part of a larger whole.

  • Arrival: It's a Non-zero-sum Game

    decision-making
    game theory
    non-zero-sum game
    Louise's daughter asks her for the technical term of a deal in which both sides can win, and Louise does not recall the term at the time. Louise's team has a discussion about their findings on alien data, and they realize that there are 12 total groups, each with a different set of data. They will need to share data with the other groups in order to obtain the full set of data, which they determine is a non-zero-sum game. Louise then recalls the technical term for a win-win situation and relays it to her daughter.

  • Arrival: Names

    communication
    communication difficulties
    language barrier
    Louise and Ian introduce themselves to the alien without their protective gear, and finally get an answer.