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Try “burger”, “cash flow”, “Costco” or “markup”.

Big companiesBig company

Uber

A marketplace: it doesn't own the cars. It connects riders and drivers and takes a fee.

A rider on the curb waves a phone as a driver pulls up. Above them a big phone shows the route on a map, and the fare is drawn as a coin cut in two: the big piece goes to the driver and a small slice goes to the app that matched them.$

The lessons

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These lessons teach 8 of the 15 big ideas in Foundations.