This month's column is devoted to an article called A Mathematician's Lament, written by Paul Lockhart in 2002. Paul is a mathematics teacher at Saint Ann's School in Brooklyn, New York. His article has been circulating through parts of the mathematics and math ed communities ever since, but he never published it. I came across it by accident a few months ago, and decided at once I wanted to give it wider exposure. I contacted Paul, and he agreed to have me publish his "lament" on MAA Online. It is, quite frankly, one of the best critiques of current K-12 mathematics education I have ever seen. Written by a first-class research mathematician who elected to devote his teaching career to K-!2 education.

The most common retort against privacy advocates -- by those in favor of ID checks, cameras, databases, data mining and other wholesale surveillance measures -- is this line: "If you aren't doing anything wrong, what do you have to hide?" Some clever answers: "If I'm not doing anything wrong, then you have no cause to watch me." "Because the government gets to define what's wrong, and they keep changing the definition." "Because you might do something wrong with my information." My problem with quips like these -- as right as they are -- is that they accept the premise that privacy is about hiding a wrong. It's not. Privacy is an inherent human right, and a requirement for maintaining the human condition with dignity and respect. Two proverbs say it best: Quis custodiet custodes ipsos? ("Who watches the watchers?") and "Absolute power corrupts absolutely." Privacy protects us from abuses by those in power, even if we're doing nothing wrong at the time of surveillance.

Most of management theory is inane, writes our correspondent, the founder of a consulting firm. If you want to succeed in business, don’t get an M.B.A. Study philosophy instead

"It was this latter concern that led Charles Kettering, director of General Motors Research, to write a 1929 magazine article called “Keep the Consumer Dissatisfied.” He wasn’t suggesting that manufacturers produce shoddy products. Along with many o

If I had to pick the critical technology for the 20th century, the bit of social lubricant without which the wheels would've come off the whole enterprise, I'd say it was the sitcom. Starting with the Second World War a whole series of things happened--ri

Here it is: I like to find (a) simple solutions (b) to overlooked problems (c) that actually need to be solved, and (d) deliver them as informally as possible, (e) starting with a very crude version 1, then (f) iterating rapidly.

Writing is easy, it’s quality that’s hard. Any idiot who knows 5 words can write a sentence (e.g. “Dufus big much Scott is”). It might be grammarless, broken, or inaccurate but it is writing. This means that when people can’t start they’re ima

a product/business idea by Philip Greenspun in September 2005

Now that the dust has settled on ''Harry Potter and the Deathly Hallows,'' Stephen King reflects on why no review did it justice, and whether kids (and their grown-ups) will ever read the same way again

Digital photography materials were not a minor change, they transformed the art of photography.

"Over the last six months, i've noticed an increasing number of press articles about how high school teens are leaving MySpace for Facebook. That's only partially true. There is indeed a change taking place, but it's not a shift so much as a fragmentation

"The positive effects of homework are largely mythical. In preparation for a book on the topic, I’ve spent a lot of time sifting through the research. The results are nothing short of stunning. For starters, there is absolutely no evidence of any aca

World of Ends What the Internet Is and How to Stop Mistaking It for Something Else.