Malcolm Gladwell has a good piece in the current New Yorker
about how hard it is to figure out what makes great teachers great.
(illo by Joost Swarte) Eric Hanushek, an economist at Stanford, estimates that the students of a very bad teacher will learn, on average, half a year’s worth of material in one school year. The students in the class of a very good teacher will learn a year and a half’s worth of material. That difference amounts to a year’s worth of learning in a single year. Teacher effects dwarf school effects: your child is actually better off in a “bad” school with an excellent teacher than in an excellent school with a bad teacher. Teacher effects are also much stronger than class-size effects. You’d have to cut the average class almost in half to get the same boost that you’d get if you switched from an average teacher to a teacher in the eighty-fifth percentile. And remember that a good teacher costs as much as an average one, whereas halving class size would require that you build twice as many classrooms and hire twice as many teachers.
Most Likely to Succeed: How do we hire when we can’t tell who’s right for the job?
Hanushek recently did a back-of-the-envelope calculation about what even a rudimentary focus on teacher quality could mean for the United States. If you rank the countries of the world in terms of the academic performance of their schoolchildren, the U.S. is just below average, half a standard deviation below a clump of relatively high-performing countries like Canada and Belgium. According to Hanushek, the U.S. could close that gap simply by replacing the bottom six per cent to ten per cent of public-school teachers with teachers of average quality. After years of worrying about issues like school funding levels, class size, and curriculum design, many reformers have come to the conclusion that nothing matters more than finding people with the potential to be great teachers. But there’s a hitch: no one knows what a person with the potential to be a great teacher looks like.
Coming after improvements to Firefox and continued unease at Google’s life-pervading insight, this image is outperforming the ███████ ████ Virality Control Group today (via). It got me thinking about all the promises that were made. Here’s the earliest article in Google News to contain “Big browser” in its headline, published by Time Magazine on Nov. […]
The WiFi232 is a traditional old-timey old-schooley Hayes-compatible 300-115200 baud modem, no wider than its own parallel DB25 port. Automatically responds with a customizable busy message when already in a call. The killer app seems to be using it to get internet onto ancient retro portables like the TRS-80 Model 102, but it’s been put […]
Most tech-media takes on the iPhone’s 10th anniversary are bland and self-congratulatory, but I like Tom Warren’s at The Verge. He laments how Apple’s pocket computer killed his inner nerd. As a youngster, he’d be constantly tearing down and building computers, even in the sweltering heat of summer. But now… …All of that tinkering and […]
Just because English has become the common global tongue doesn’t mean it’s the easiest language to write—even for native speakers. If you’re looking to improve your written communication skills, especially on your smartphone, take a look at Ginger Page.Ginger is a cross-platform app that offers corrections for phrasing as well as grammar. It’s powered by […]
The current web development landscape is rife with buzzwords and technology that gets abandoned almost as soon as it’s made. If you’ve never written a line of code before, it can be hard to figure out what’s coming, what’s here to stay, or how to get ahead.This Beginner Web Development Bundle is a great place […]
The Fader Stealth Quadcopter from TRNDlabs packs incredible flight performance into a package small enough to land on your phone screen, and it’s available now in the Boing Boing Store.The Fader’s six-axis gyroscope module gives it perfect balance in the air. This makes the onboard 720p HD camera all the better for shooting amazing flight […]