Sara Geitner

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Ten books every teacher should read

In the last decade, a wealth of books has brought together ideas to help teachers have the greatest impact on student learning. Here are just a few<p>Plato’s Republic, Rousseau’s Émile and Dewey’s Democracy and Education – there’s a strong case to be made, as Dennis Hayes has, that these are the only …

Pedagogy
Teaching

Teachers must ditch 'neuromyth' of learning styles, say scientists

Eminent academics from worlds of neuroscience, education and psychology voice concerns over popularity of method<p>Teaching children according to their individual “learning style” does not achieve better results and should be ditched by schools in favour of evidence-based practice, according to …

Pedagogy

A group of scientists thinks they can replace fossil fuels with nuclear fusion by 2030

Nuclear fusion is premised on building technology that would replicate the reaction that naturally powers our Sun — two light atoms, in this case, hydrogen, are fused together under extreme temperatures to produce another element, helium.<p>The process would release vast amounts of clean energy drawn …

Energy

Outer layer of human heart regrown using stem cells

A multidisciplinary team working at Pennsylvania State University claim to have used human stem cells to regenerate the cells that cover the external …

The bald and the bold: Eagles' resurgence comes at a price

The eagle has landed — on chickens and rare birds, with talons at the ready.<p>The resurgence of the bald eagle is one of America's greatest conservation success stories. They have come back so strong that in some areas, they are interfering with efforts to preserve more jeopardized species, such as …

The Teenage Brain Is Wired to Learn—So Make Sure Your Students Know It

The potential that comes from neuroplasticity—the capacity to change the structure and function of the brain through learning—provides the foundation …

12 Biting Facts About Gila Monsters

Its gnawing, long-lasting bites are incredibly painful, it's the largest native lizard in the United States, and its venom inspired a popular …

Zoology

How Can Complex Things Form in a Universe Ruled by Entropy?

If disorder in the universe is always increasing, then how is it that galaxies, stars, planets, and people are here? Watch the explanation.<p>Recently, when we were talking about why time only moves forward, we got into talking about the Second Law of Thermodynamics. It says that disorder, otherwise …

How a Guy From a Montana Trailer Park Overturned 150 Years of Biology

Biology textbooks tell us that lichens are alliances between two organisms—a fungus and an alga. They are wrong.<p>In 1995, if you had told Toby Spribille that he’d eventually overthrow a scientific idea that’s been the stuff of textbooks for 150 years, he would have laughed at you. Back then, his …

Biology

What is a “particle”?

Quantum physics says everything is made of particles, but what does that actually mean? “Is he a dot or is he a speck? When he's underwater, does he …

Physics

Why smart kids shouldn’t use laptops in class

For the past 15 years, educators have debated, exhaustively, the perils of laptops in the lecture hall. Professors complain that laptops are distraction machines; defenders say that boring classes are to blame — students have always doodled or daydreamed, so what’s the difference that they’re …

Education

Ask Ethan: How Does Dark Matter Interact With Black Holes?

Black holes are some of the most extreme objects in the Universe: a concentration of mass so great that it collapses, under General Relativity, into a singularity at its center. Atoms, nuclei, and even fundamental particles themselves are crushed down to an arbitrarily small thickness in our …

Dark Matter

“Nature can surprise us”: There’s a new species of bacteria that eats plastic

There’s an estimated 311 million tons of plastic (pdf) produced every year across the world. There will be more plastic than fish in the sea by 2050, it’s probably in our food, and will likely leave its mark long after we’re gone.<p>Polyethylene terephthalate (known as PET), which is used for …

Pollution

Solving The Mystery Of The Disappearing Quasar

If this were a Sherlock Holmes story, its title would surely be "The Case of the Disappearing Quasar."<p>In this case, however, the mystery wasn't solved by an aging Victorian-era detective, but by a young American astronomer at Penn State University named Jessie Runnoe and her colleagues. They study …

Black Holes

We’re recycling way too much and it isn’t benefiting the economy or the environment — here’s how design can help

But recent research into the environmental costs and benefits and some tough-to-ignore market realities have even the most ardent of recycling fans questioning the current system.<p>No one is saying that using old things to make new things is intrinsically a bad idea, but consensus is building around …

Sustainability

Would It Be A Bad Thing to Wipe Out A Species ... If It's A Mosquito?

Mosquitoes have a nasty reputation.<p>The species <i>Aedes aegypti</i>, for example, is currently responsible for spreading the Zika virus through the Americas and also infects humans with dengue fever, chikungunya and yellow fever.<p>This raises the question: Should there be an effort to get rid of <i>Aedes aegypti</i> …

Public Health

Meet the internet maths guru who could become the next million-dollar teacher

Colin Hegarty says Global Teacher prize nomination is down to ‘working like a dog’ – and he tries to instil same work ethic in students<p>At the back of Colin Hegarty’s classroom, on a display made from wavy pieces of blue sugar paper, is something he calls his “wall of inspiration”. It features …

Teaching

See 10 Animals That Live a Ridiculously Long Time

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Zoology

Science Seeks Clues To Human Health In Neanderthal DNA

If you've ever seen what a Neanderthal is supposed to have looked like, it might be hard to imagine mating with one. But modern humans did. We know because, a few years ago, scientists found stretches of Neanderthal DNA in living humans.<p>And now there's evidence, from a study published Thursday in</i> …

Evolution
Environmentalism

Scientists use polymer nano-shell treatment to order bones to repair themselves

A team of researchers from the University of Michigan has developed a new technique to aid bone repair, using polymer nano-shells to deliver microRNA …

University of Michigan

New Stephen Hawking Hypothesis: Black Holes Have 'Hair'

Black holes may sport a luxurious head of "hair" made up of ghostly, zero-energy particles, says a new hypothesis proposed by Stephen Hawking and other physicists.<p>The new paper, which was published online Jan. 5 in the preprint journal arXiv, proposes that at least some of the information devoured …

Physics

Western diets damage gut microbiota over generations, in ways hard to reverse

It may take more than a tub of yogurt to reverse the effects that a high-fat, low-fiber diet have wrought in the bellies of men and women in the industrialized world, says new research.<p>Indeed, the depletion of gut microbes that comes with diets deficient in fiber extend well beyond the lives of …

A Physicist Tweeted That Gravitational Waves "May Have Been Discovered" And People Are Excited

Gravitational waves, if directly detected, would be one of the biggest physics discoveries of the century. But no scientific paper has been published yet, so don't hold your breath.<p>Krauss first mentioned these rumours in a tweet in September last year.

Aleutian Quake Zone Could Shoot Big Tsunamis To Hawaii, California

Two teams of geologists say portions of the seafloor along the Aleutian Islands in southwestern Alaska could produce tsunamis more devastating than anything seen in the past century. They say California and Hawaii are directly in the line of fire.<p>Tsunamis — the giant waves generated by undersea …

Geology
Chemistry

Gene Editing Tool Hailed As A Breakthrough, And It Really Is One

Every once in a while a technology comes along that completely alters the way scientists do their work.<p>It's hard to imagine astronomy without a telescope or high energy physics without an accelerator.<p>From here on in, it's going to be impossible to imagine biology without CRISPR-Cas9.<p>Simply put, …

Genetics

River ecosystems show 'incredible' initial recovery after dam removal

A songbird species that flourishes on the salmon-rich side of dams in the western United States struggles when it tries to nest on the side closed …

United States