Huh? Shouldn't that be "per square inch"?
Okay, maybe a misprint. I read on. "But the very worst, most disgusting, just say no for germ's sake, was the public sandbox, where NSF's analysts found a horrifying 7,440 bacteria per inch!"
How is this the very worst? The water fountain is something like 4000x as much. The cafeteria plate that they eat off is twice the number! What the hell? With mathematical analysis like this, it's no wonder that elementary teachers don't find it necessary to do math or find it embarrassing when they screw up teaching fractions.
"I just don't DO math. Tee-hee-hee. Giggle."
Can't you just hear it now? "Let's make a silly crack about how video games are bad for you - 551 sounds like a BIIIIIG number!" Too bad it's one-third the number of bacteria on a typical student's hand.
"I don't DO fractions, either. Giggle. Snark."
Here's the link. Reposted below.
Eeek! There's a germ on my desk!
The bacteria and germs are out there, just not where you might think.
Even as fears of a flu pandemic fade, it's worth noting where all kinds of germs lurk in your classroom. In 2006, the non-profit NSF International took its microscope to two Michigan elementary schools to measure the general bacteria population on different surfaces.
Water Fountain Spigot
Cold Water Faucet
Hot Water Faucet
* Units are number of aerobic bacteria per inch
This year, NSF's microbiologists widened their scope and swabbed surfaces in 26 public places. Thanks to your school custodians, schools starred in the comparison. School bus seats practically sparkled with fewer than 10 bacteria per square inch, as did books and basketballs. Still quite clean were desks, gym mats, and computer mice.
But leaving schools behind, they found a little germ factory on the video game controls in movie theaters-551 bacteria per square inch. (Proof that those games aren't so great for mind AND body.) But the very worst, most disgusting, just say no for germ's sake, was the public sandbox, where NSF's analysts found a horrifying 7,440 bacteria per inch!
Fortunately, your classroom doesn't resemble a sandbox. And it's not too hard to keep it from breeding like one. Check out these tips from veteran custodians on fighting germs in the classroom.
Those who can, do. Those who can't, teach teachers or run their union.