One year, she laid on a display of synchronised swimming – a skill in which she suggested she had once been proficient – in the Olympic pool that she had designed.
The mayor's explanation is likely to offer little consolation to teachers and parents of students who once were considered proficient and now are deemed behind.
But once you are proficient at that, you have to remember to be mindful in anything and everything you do as much as possible, whether that's walking the dog or washing the dishes.
"Once they are proficient in the mechanics of filming, then we turn them loose in the simulators [used for training astronauts] and they have to make their own little movie," she explains.
In fact, once we become proficient at reading, the precise shape of the letters — not to mention the arbitrariness of the spelling — doesn't even matter, which is why we read word, WORD, and WoRd the same way.
Once she was proficient with a camera, Man Ray promoted her for commissions that he couldn't fulfill or didn't want, one of which was to document operations at the Sorbonne medical school.
Once children are proficient in those basics they would be free to turn to other activities that are equally essential for math and science: devising original experiments, observing the natural world and counting things, whether they be words, events or people.
As you may recall, the original idea behind Duolingo was twofold and similar to von Ahn's last startup, reCAPTCHA: Duolingo would teach users how to speak and write a language, and, in return, users would translate online texts into other languages once they got proficient enough to do so (and Duolingo would be able to charge for these translations).
Once I become proficient enough to impart my knowledge to others I would possibly like to come back to city life and apply for grants and work with organizations like "Big City Mountaineers" to take metropolitan youth on trips to mountainous wilderness areas.
