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And that process continues, and you immediately start to realize how strange this is.
隨著課程不斷推進，你會突然間發(fā)現(xiàn)，這種感覺不太對勁。
I didn't know 25 percent of the more foundational thing, and now I'm being pushed to the more advanced thing.
我明明還有25%的基礎(chǔ)知識不懂，現(xiàn)在卻被逼去學(xué)更加深奧的東西。
And this will continue for months, years, all the way until at some point,
這會持續(xù)數(shù)月或數(shù)年，直到某一個時間點，
I might be in an algebra class or trigonometry class and I hit a wall.
我可能會在代數(shù)或是三角函數(shù)課堂上完全不知所云了。
And it's not because algebra is fundamentally difficult or because the student isn't bright.
這并非因為代數(shù)學(xué)本身很難學(xué)，或者是因為學(xué)生不夠聰明。
It's because I'm seeing an equation and they're dealing with exponents and that 30 percent that I didn't know is showing up.
而是因為當(dāng)我看見指數(shù)的等式時，其中有30%是我不懂的知識。
And then I start to disengage.
然后我就不想做了。
To appreciate how absurd that is, imagine if we did other things in our life that way. Say, home-building.
為了讓大家體會這是多么夸張，可以想象一下，當(dāng)我們在人生中以這種方式干其它的事情時，比如，造房子。
So we bring in the contractor and say, "We were told we have two weeks to build a foundation. Do what you can."
我們找承包商來，然后和他說：“我們被告知只有兩周時間去打地基。所以能建多少就建多少吧。”
So they do what they can. Maybe it rains. Maybe some of the supplies don't show up.
然后他們就盡力去做了。中間也許下雨了。也許有些物資沒到位。
And two weeks later, the inspector comes, looks around, says,
兩周之后，房屋檢查員來了，看了一下，說：
"OK, the concrete is still wet right over there, that part's not quite up to code ... I'll give it an 80 percent."
“看起來這兒的水泥還沒干，那塊兒也還不大行……我就給個80分吧。”
You say, "Great! That's a C. Let's build the first floor."
然后你們說：“太好了，至少還是個C。我們開始建第一層吧！”
Same thing. We have two weeks, do what you can, inspector shows up, it's a 75 percent.
同樣的事情接連發(fā)生。我們又努力了兩周然后房屋檢查員來了，給了個75分。
Great, that's a D-plus. Second floor, third floor, and all of a sudden,
太好了，居然還有D+！繼續(xù)建二樓，三樓，
while you're building the third floor, the whole structure collapses.
直到建第三層的時候，整棟建筑突然倒塌了。
And if your reaction is the reaction you typically have in education, or that a lot of folks have,
如果你的回應(yīng)與上學(xué)時的回應(yīng)一樣，或者是很多人會有的那種反應(yīng)，
you might say, maybe we had a bad contractor, or maybe we needed better inspection or more frequent inspection.
你也許會說，估計是承包商不夠格，也可能是檢查力度和次數(shù)不夠多。
