Category: ScienceNews

That some people are just naturally gifted at mathematics is pretty well accepted as conventional wisdom. With enlightened teaching we can all become adequate at math, or maths, and should set expectations accordingly. That, says Jo Boaler, who is a professor of mathematics education at Stanford University, is hogwash. Although she uses the more refined terminology of calling such thinking “a myth.”

“The neuroscience is showing us petty clearly that there’s no such thing as a maths brain, even though so many people believe that, particularly in the Western culture,” she tells interviewer David Edmonds in this Social Science Bites podcast. She doesn’t fully reject the notion about enlightened teaching, though, only the bit about merely being adequate: “If you were taught the right way ... you could excel at all levels of maths in school.”

She describes how brain pathways are formed when we learn something, and the agglomeration of those pathways are what makes one adept, and not some inherent expertise. “This isn’t to say everyone is born with the same brain,” Boaler explains, “but experiences we have much more potential to shape brains than anything we’re born with. What we’re born with is really eclipsed by the millions of experiences we have.”

Her own experiences. Apart from once having been a mathematics teacher in London comprehensive schools, include following hundreds of students over many years in both the United Kingdom and the United States. Some of those students sitting in rows in traditional classrooms, others actively exploring mathematical concepts while untethered from desks. This research has enabled to bust a number of maths myths, such as that boys are better at math than girls – turns out that boys do better at testing, but not in school performance. Boaler notes that mindset plays a key role in learning, and those afraid of making a mistake don’t benefit from one of the most productive ways of learning, which is making a mistake.

In this podcast, she also details how timed tests actually inhibit the brain from working, and that even adults use (virtual) finger in mathematics, which plays out positively for musicians.

In addition to her role at Stanford, Boaler is the faculty director of the math teaching incubator youcubed and the author of the first ‘massive open online course’ on mathematics teaching and learning. She was also the Marie Curie Professor of Mathematics Education at the University of Sussex, a fellow at the Center for Advanced Study in the Behavioral Sciences at Stanford, and has written nine books, including the 2015 bestseller Mathematical Mindsets.

Crowdscience revisits the evidence on the best forms of biometric identification. Earlier in the year we explored digital fingerprints, gait (walking style) recognition and iris scanners. Today presenter Anand Jagatia looks at systems which use your face and your voice to identify you. One airline is currently testing facial recognition in airports as a means of replacing your passport. Meanwhile, Anand tries to fool a speech recognition system that measures over a thousand characteristics of your voice in order to protect your identity. But will it be able to cope if you have a cold?

Presented by Anand Jagatia Produced by Marijke Peters.

Picture: Facial Recognition Credit: Getty Images

Reindeer castration, plants get chatty and more quirky science revealed in this Christmas special of CrowdScience where we will also be hearing from the people that make this series possible. That’s you – our listeners.

CrowdScience has been on air for just over a year which means we’ve had over 60 adventures. Every time we put a show together there’s a heart-breaking process where amazing facts we wanted to share end up on the cutting-room floor. To celebrate the holidays we’ve gone scavenging for the best untold stories, edgy science facts and incidents from behind the scene. Presenter: Marnie Chesterton Producer: Louisa Field

Picture: Reindeer in Snow Credit: Getty Images

It lurks behind sofas and collects in corners, apparently appearing from nowhere. But what is household dust? And should we bother sweeping it away? That’s what Australian listener Moshe wants to know and what Marnie Chesterton is off to find out for this week’s CrowdScience. She embarks on a mission to discover not only what dust is made of, but whether it poses any health risks. Although most people sweep it away without a thought, dust contains all sorts of secrets about our habits and everyday lives. Marnie finds out how dust can reveal the pets you keep, the chemicals in your surroundings, the location of your house and how fecal bacteria can uncover whether more men or women live in your home.

Presenter: Marnie Chesterton Producer: Anna Lacey

(Image: Woman Vacuuming Up Dust. Credit: Getty Images)

Trees are old – they transcend human generations – but are they the oldest living things on Earth? This story began in June 2017 when we explored a question sent in from CrowdScience listener William. Many of you got in touch after the programme with questions of your own. So we’re revisiting our trees programme but also exploring another question from listener James, who wants to know what, pound for pound or gram for gram, is the strongest animal alive on Earth today? Marnie Chesterton wrestles with one of them and – spoiler alert – it’s not a gorilla.

Presenter: Marnie Chesterton Producers: Jen Whyntie

(Photo: Kumbuka, a 15-year-old western lowland gorilla. Credit: Oli Scarff/Getty Images)

Dodos are dead, but are they gone forever? Reviving extinct species is a trope of science fiction, but real-life scientists are working on every stage of the problem today. Meeting scientists focused on uncovering ancient animal genomes, or reviving individual cells to conserve species still around, Marnie Chesterton seeks out whether new technologies might, just possibly, bring back the iconic dodo. But what would it take to bring back that most iconic of extinct species? Following listener Rachel’s question, CrowdScience gets to grips with the dodo’s past, and finds out what’s left of this iconic bird, meeting the scientists inadvertently piecing it back together.

Presenter: Marnie Chesterton Producer: Rory Galloway

Picture: An accurate reconstruction of nesting Dodos Photo Credit: Dr Julian Hume

“Most people,” says Goldsmiths sociologist Bev Skeggs, “think they’re using Facebook to communicate with friends. Basically they’re using it to reveal how much they can be sold for, now and in the future, and how much their friends can be sold for.”

That was an almost accidental lesson she learned during research on how social networks were structuring, or restructuring, friendships, she explains to interviewer David Edmonds in this Social Science Bites podcast. After receiving a monstrous data dump – with permission – of individual’s social media usage, Skeggs and her colleagues were “completely diverted”  as it dawned on them that Facebook was trawling its users’ habits to collect information on people’s general browsing habits.

The potentially disturbing but legal practice was only the first step in Facebook’s efforts to monetize social media – and in what Skeggs argues calcifies inequality.

“They probably have the greatest capacity to experiment with social data to see who we’re communicating with, how we’re communicating with them,” Skeggs says, “but basically 90 percent of Facebook profit is made from advertising -- selling your data to advertising companies so that they can place an advert on your browser.” And in turn, algorithmically segregating web denizens – well, their composite data profiles, at any rate -- based on their perceived wealth and influence. This “subprime silo-ing” pushes sketchy advertising, in particular for high-interest loans, at people who can least afford to take on more debt.

That, she explains, is why “we really, really need to have some strict regulation” when it comes to the trading of personal data, targeting, advertising and similar practices that flow from social media.

Skeggs, who has led the sociology departments at Manchester University and Goldsmiths, University of London, has long looked at less explored vectors of inequality, as demonstrated by her breakthrough 1997 book, Formations of Class & Gender: Becoming Respectable. She was the joint managing editor of the The Sociological Review for five years starting in 2011, a period that saw the esteemed journal transition into an independent foundation “dedicated to the advancement and study of sociology in everyday life.” (She remains an editor at large for the Review.)

How does technology affect how we fall in love? Crowdscience travels to India to answer listener Erin’s questions about the impact of the internet on our search for soulmates. We meet the traditional matchmaker who says her service provides security in an era of digital fraud. And ask whether computer algorithms are the best way to help people make permanent romantic connections?

Presenter: Chhavi Sachdev Producer: Marijke Peters

(Photo: A couple kiss while taking a selfie. Credit: Getty Images)

Some of us want to be up with the larks, while others are more like night owls. But is our preference down to our genes, or more to do with habits and surroundings? We set out to find the answers, inspired by a question from Kira, a night owl CrowdScience listener in Philadelphia, USA.

Our daily, or circadian, body clocks are a hot topic of discussion at the moment - this year’s Nobel Prize for Medicine went to three scientists who discovered the gene that makes these clocks tick. To answer our listener’s question, we need to know why different clocks tick at different rates, so we visit a specialist sleep centre to see how having a slow-ticking clock makes it hard for you to leap out of bed in the morning.

And the morning sun helps all of us regulate our daily rhythm, so what happens when it doesn’t rise at all? We travel to Tromsø, in the far north of Norway, to see how morning and evening types fare during the long polar nights - and meet the reindeer who seem to be able to switch off their daily clocks altogether. Meanwhile down near the equator, we hear about the hunter-gatherer community in Tanzania where there’s nearly always someone awake.

Sami song, the joik of Ráikku-Ánte, is performed by Ken Even Berg

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Anand Jagatia Producer: Cathy Edwards

(Image: L - Women smiling on a run R - Women DJ. Credit: Getty Images)

Sometimes our memory fails us and we wish facts would just stick better. Listener Mothibi is a student and has spent three years trying to remember as much as possible for his exams. He wants to know how he can train his brain to better to remember things – and does the brain have a limit on how much stuff we can cram into it?

To find the answers presenter Marnie Chesterton seeks help from memory magician, Simon, at the European Memory Championship. Using the loci technique she accomplishes a memory feat she didn’t think possible. Thought to have been developed by the Greeks, the loci method is a technique that enables the brain to remember extraordinary amounts of information. It turns out, we all have the right wiring to remember more and better, but we need to train our brains.

Also, CrowdScience heads to Cambridge University where Marnie Chesterton lands herself in a study. The scientists scan her brain while she exercises her memory muscles and we discover why sometimes memories get muddled up.

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Marnie Chesterton Producer: Louisa Field

(Image: Woman scratching head, thinking brain melting into lines. Credit: Getty Images)