Since my #15 was phrased in a way that seems to have bothered a moderator, I'll try again in less colorful language.
There is a broad consensus in the US that education is a public good. I'm using "public good" in the
nontechnical sense: that education is widely believed to help society in general. There are several completely different ways in which education can be a public good:
(1) Education increases wealth, and this effect is not just limited to the individual who gets the education. Wealth produces more wealth, and that wealth ripples outward through society so that we all become richer.
(2) Education may enhance social mobility (although I think it's actually very poor at doing that in practice in the US today). Social mobility is arguably a public good because our society is constructed in such a way that it gets its stability by giving lots of people economic hope (so they don't become revolutionaries), rather than getting its stability by having a rigid class system.
(3) Democracy without education is destined to fail. In #15 I gave an example that I'm sure any American right now can guess, but there are plenty of other examples in other times and places. For example, Egypt is a failed democracy, and Egypt also ranks very low in the quality of its educational system.
Andrew Hacker's opinion piece cites poor numeracy in the US, and says that "We should be doing better," but he doesn't explicitly say why he thinks it's important that we do better. Should we do better because of compassion for individuals? Because numeracy is a public good? The only hint is that the study he cites was done by the Organization for Economic Cooperation and Development. This suggests that he thinks numeracy is a public good, and that the reason is #1 above.
The trouble here is that if we don't think about his unexamined assumptions, we may be led to the wrong conclusions. He advocates teaching "an undergraduate class I call Numeracy 101, for which the only prerequisite is middle school arithmetic." He claims positive results. Are these positive results a public good? I suspect not. If we consider the three reasons above why education is a public good, I suspect that in each case, his plan would be the opposite of a public good -- a "public ill."
Education increases wealth. Math education certainly increases your wealth if you're an engineering major. But what evidence is there that the much narrower goal of numeracy would increase people's wealth? It seems unlikely to me. A huge chunk of the US population is innumerate, and they're not all unemployed.
Education may enhance social mobility. I haven't seen any evidence that numeracy enhances social mobility. Hacker is educating non-STEM majors. Is there really a difference in social mobility between numerate people who have a degree in history from Queens College and innumerate people who have the same degree from the same school? That would be very surprising.
Democracy without education is destined to fail. A country like Egypt might not have become a failed democracy if there had been better education. Italy might not have brought Mussolini to power if more Italians had been educated. (I would take up the case of my own country at the present time, but discussion of that seems to be prohibited.) But what evidence is there that more numerate Egyptians or Italians would have preserved their democracies? It seems much more likely to me that there is something about the
experience of college that immunizes people against authoritarianism. US college students meet people who are Muslims. They meet people who are immigrants. They discuss a wide range of topics, and their professors require them to carry out that discussion using facts and logic. There are multicultural education requirements, history requirements, and so on. It seems far more likely to me that these general features of the college experience are what provide the social good -- not anything as specific as numeracy.
People might say, but what's wrong with promoting numeracy? It's clearly desirable.
I think the opposite may be true. Numeracy education may be a public ill. Hacker doesn't propose supplementing math education with additional courses to promote numeracy. He proposes
replacing challenging coursework in high school and college with a second, easier track in which the sole goal is numeracy. The problem with this is that it's likely to work against the public-good goals of wealth and social mobility. For example, if you go to an inner-city school, the only math AP course may be AP Numeracy. They won't offer AP Statistics (which Hacker depicts as if it's some kind of cruel and unusual punishment).
houlahound said:
We had the perfect system when I was at school. General math for every day life, advanced math...for obvious and ordinary math for students that didn't care or had trouble.
This appears to be exactly what Hacker is proposing: a return to what was known in the 60s as "tracking." The trouble is that tracking can very easily contribute to educational inequality. The brown kids get put in Math for Daily Life, while the white kids take calculus. This is why tracking lost favor in the 70s. There's probably an argument to be made for more tracking, but you can't just ignore its potential to cause inequality.