The Dubious Science of Teacher Coaching: “An Interaction-Based Approach to Enhancing Secondary School Instruction and Student Achievement”

A while back, I Links Dumped Josh Rosenau’s Post Firing Bad Teachers Doesn’t Create good Teachers, arguing that rather than just firing teachers who need some improvement, schools should look at, well, helping them improve. This produced a bunch of scoffing in a place I can’t link to, basically taking the view that people are… Continue reading The Dubious Science of Teacher Coaching: “An Interaction-Based Approach to Enhancing Secondary School Instruction and Student Achievement”

Frickin’ Lasers: “Laser Advances in Nuclear Fuel Stir Terror Fear”

A physics story makes the front page of the New York Times today. Sadly, it’s with the headline Laser Advances in Nuclear Fuel Stir Terror Fear. Sigh. The key technological development, here, is that General Electric has been playing around with a laser-based isotope separation technique. This is an idea that’s been around for a… Continue reading Frickin’ Lasers: “Laser Advances in Nuclear Fuel Stir Terror Fear”

Sad Balloon Physics II: How Long Will a Balloon Last?

As a follow up to Wednesday’s sad balloon post, the repair that lofted it back to the ceiling was a temporary reprieve, unsurprisingly. After 24 hours, more or less, it had sunk back down to the point where the ribbon was just barely touching the floor. On the one hand, it looks kind of pathetic… Continue reading Sad Balloon Physics II: How Long Will a Balloon Last?

Fermi Baseball: How Many Hitters Have There Ever Been?

I’m not much of a baseball fan, but we’re edging our way toward football season, so I flipped to ESPN radio a couple of days ago, in time to hear Mike and Mike discussing Jim Thome’s 600th home run. They were questioning how much meaning we should attach to home run records any more, given… Continue reading Fermi Baseball: How Many Hitters Have There Ever Been?

The Physics of a Sad Balloon

My birthday was two months ago, and SteelyKid’s was the weekend before last, so we’ve had balloons running around the house for a good while now. Meaning that when I came into the library yesterday, I saw the sad little image on the right: a half-deflated Mylar balloon floating at about chest height. Now, the… Continue reading The Physics of a Sad Balloon

The Status of Science: We Have No-one to Blame but Ourselves

Over in Twitter-land, Josh Rosenau re-tweeted a comment from Seattle_JC: It is a bad sign when the promotion of science and science education has been reduced to a grassroots movement in this society. It’s a nice line, but it doesn’t entirely make sense. When I hear the term “grass-roots movement,” I think of something that… Continue reading The Status of Science: We Have No-one to Blame but Ourselves