Her first example, "proportion of a six-pack of water" is actually very complex, with a lot of potentially distracting details. Nowhere does she mention that's

Her first example, "proportion of a six-pack of water" is actually very complex, with a lot of potentially distracting details. Nowhere does she mention that's what her fractions are measuring, either! The whole lecture was simply a mass of detail with no reference to the underlying concept it was putatively intended to explain. No wonder the children were confused. Why not start with cutting a pie? Guess that doesn't lead to nearly as much busy-work.