Author Archives: SteffenLindrum

Ophelia is the strongest storm to hit Ireland in at least 50 years.

In parts of the United Kingdom Monday morning, people woke up to a blood-red sun — a phenomenon seen around the globe this year.

The color was caused by smoke that blew in from wildfires across Portugal and Spain. Hurricane Ophelia deepened the reddish hue by dragging up dust from the Sahara.

Red skies have haunted the western U.S. recently as wildfires burned in Montana and ash rained down in Seattle. This month in Northern California, 20,000 people evacuated from massive wildfires under a red-orange sky.

Anadolu Agency / Contributor / Getty Images

On the other side of the world, wildfires burned in Siberia all summer long, covering the sun with enormous clouds of smoke and ash.

REUTERS/Ilya Naymushin

To understand why this happens, you need to know a bit of optics. Sun rays contain light from the whole visible spectrum. As the sun’s white light beams into the atmosphere, it collides with molecules that diffuse some of the wavelengths. On a normal day, short wavelength colors, like purple and blue, are filtered out, making the sun look yellow.

But high concentrations of light-scattering molecules in the air (like smoke particles from a wildfire) crowd out more of those short-wavelength colors, leaving behind that hellish red color.

Since climate change makes wildfires worse, we’ll be seeing a lot more of it.

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Ophelia is the strongest storm to hit Ireland in at least 50 years.

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Kids Who Have to Share iPads Learn Better Than Kids Who Have Their Own

Mother Jones

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Students who share digital devices do better academically than their peers who have their own devices or no devices at all, a team from Northwestern University has found.

The study, conducted by communications Ph.D. candidate Courtney Blackwell, focused on three Chicago-area elementary schools. One school had iPads for each of its 100 kindergartners, another had roughly one iPad for every five students, and a third had no iPads at all. Blackwell found that the kindergartners who shared iPads scored 28 percent higher on a standardized literacy test at the end of the year compared to the beginning. Kids who had their own devices improved their scores by 24 percent, and those who had no devices at all increased their scores by 20 percent. Though the differences seem small, they are statistically significant, according to Blackwell.

Blackwell attributes the success of the sharing group to “the collaborative learning around the technology.” As an example, she pointed to an activity where students were instructed to find various shapes (squares, rectangles, circles, etc.) in their classroom and report their findings using their device’s microphone and recorder function. “In the shared classroom, two kids would share an iPad so there was much more talk and negotiation,” Blackwell told me. “If one kid pointed and said, ‘I found a square,’ another kid may say, ‘Oh, well that’s not a square—it’s a rectangle.'”

That collaboration enhances learning may seem obvious. But the implications of the study—that students don’t need their own digital devices—could be far-reaching, especially as many districts make major sacrifices in order to be able to afford technology. Take for example, North Carolina’s Mooresville Graded School District, which in 2009 decided to cut 65 staff members, including 37 teachers, in order to buy laptops for all of its students. (While the New York Times reported three years later that the district’s test scores had improved, it attributed the success to other factors as well.)

Probably the most infamous example of the intertwined relationship between tech and tests is the bungled Los Angeles Unified Schools District iPad initiative, which included a $1.3 billion contract with Apple and the testing and curriculum company Pearson. In the 2013-14 school year, the district, which is the second largest in the nation, began rolling out the program, which would outfit its 64,000 students with their own iPads. The effort was quickly deemed a failure—not only were there a lack of basic accessories like keyboards, but students were hacking their iPad security settings to they could spend class time scoping out Facebook and other off-limit sites. By the following summer, the district’s contract with Apple was annulled. Then, last October, the superintendent resigned amid rumors—which the FBI is currently investigating—that he and other administrators had connections with both Apple and Pearson that may have influenced the contract.

While Blackwell’s findings—that kids learn better when they engage with one another—aren’t earth shattering, they do serve as a reminder of the influence that the $7.9 billion educational technology sector holds over schools. It’s not clear yet whether the one-device-per-student approach is in the best interest of kids—or just the companies that make the devices and supply their content.

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Kids Who Have to Share iPads Learn Better Than Kids Who Have Their Own

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