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8 MB - University of Toronto Magazine

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Life on Campus<br />

31 per cent <strong>of</strong> first-year students don’t seek help when<br />

they don’t understand course material, according to the<br />

National Survey <strong>of</strong> Student Engagement<br />

Get it Got it. Good!<br />

A new app lets<br />

pr<strong>of</strong>s track student<br />

comprehension<br />

in real time<br />

Liam Kaufman<br />

Educators now have a better way to know if<br />

they’re getting their point across in the classroom,<br />

thanks to an invention by s<strong>of</strong>tware<br />

developer Liam Kaufman (BSc 2011).<br />

Understoodit is a web-based application that<br />

lets students anonymously express their bafflement<br />

in class. When students load the tool on<br />

their smartphones or laptops during class and<br />

click a red “Confused” button, their input automatically<br />

registers on the pr<strong>of</strong>essor’s computer,<br />

showing what percentage <strong>of</strong> the class is lost.<br />

The teacher can re-explain things in the hope<br />

students will hit the green “Understood” button,<br />

which then conveys to the pr<strong>of</strong>essor what percentage<br />

has grasped the material.<br />

Kaufman tested the s<strong>of</strong>tware in three U <strong>of</strong> T<br />

computer science classes this past February.<br />

Students embraced the tool – perhaps because<br />

it eliminates the fear <strong>of</strong> looking stupid in class<br />

when asking a question, says Kaufman.<br />

But the application was especially well<br />

received by the pr<strong>of</strong>s, who said they appreciated getting instant feedback to help tweak<br />

their delivery. Word-<strong>of</strong>-mouth buzz led to inquiries from 2,800 educators worldwide<br />

within a few months.<br />

Kaufman invited 200 <strong>of</strong> them to try his prototype. With the help <strong>of</strong> another s<strong>of</strong>tware<br />

developer and a user-interface expert, he used insights from the expanded test to<br />

improve the service – including adding a feature that lets teachers poll students.<br />

Kaufman originally wanted to be a neuroscientist – after earning a BSc in psychology<br />

at Western <strong>University</strong>, he enrolled in medical science at U <strong>of</strong> T. But at the same time,<br />

he dabbled in web design and became hooked; after completing his MSc in 2008, he<br />

started a bachelor <strong>of</strong> computer science, which he finished last year.<br />

He launched the upgraded tool in August and is keeping it free for students; he’s<br />

charging teachers a monthly fee <strong>of</strong> $3, but those who register at understoodit.com<br />

before October 3 can use it for free for a year. – Sharon Aschaiek<br />

ephemera<br />

U <strong>of</strong> T math pr<strong>of</strong>essor emeritus Ed<br />

Barbeau is able to produce this object<br />

using only a pair <strong>of</strong> scissors and one<br />

rectangular piece <strong>of</strong> paper. If you<br />

believe that only one side <strong>of</strong> the sheet<br />

faces up, look again.<br />

This is one <strong>of</strong> many puzzles that Barbeau<br />

used to present to his math class<br />

for non-math students – <strong>of</strong>ten with<br />

great results. “Being good at math<br />

doesn’t necessarily make you good at<br />

puzzles,” says Barbeau. “In fact,<br />

English students scored very highly on<br />

[my puzzles] because they approach<br />

math in a non-standard way.”<br />

Find more mathematical challenges<br />

in Barbeau’s book After Math: Puzzles<br />

and Brainteasers (Wall & Emerson,<br />

1995). – Nadia Van<br />

Cryolophosaurus (“it’s got a bizarre pompadour crest”);<br />

and the Giganotosaurus (“a meat eater that could have<br />

challenged the supremacy <strong>of</strong> T Rex”).<br />

“Yes, they’re a pretty cool bunch <strong>of</strong> dinosaurs,” the 32-yearold<br />

Evans sighs, with satisfaction. Like many, he was turned<br />

on to dinosaurs early, by a childhood visit to the ROM’s galleries.<br />

But unlike most others, he remained fascinated, turning<br />

his passion into a career, pursuing studies at UBC and a<br />

doctorate at U <strong>of</strong> T to deepen his knowledge. He’s been on<br />

digs all over the world, from the high Arctic (“there’s a longer<br />

digging season up there now”) to Mongolia to South Africa.<br />

It was in the last location that the adventurous academic<br />

had what must be the ultimate serendipitous find. The team<br />

was letting <strong>of</strong>f steam after several frustrating days, he says.<br />

“We were leaning with our backs against a cliff wall, tossing<br />

rocks. I happened to look at one before I threw it, and it had<br />

a round outline. It was a dinosaur egg, and there were eight<br />

more in a nest in the cliff.” They’d unearthed a 190-millionyear-old<br />

dinosaur nursery. The find eventually persuaded<br />

scientists that even the earliest dinos were more nurturing<br />

than previously suspected. “These dinosaurs weren’t born<br />

with teeth, so the parents may have fed them, like birds.” He<br />

enthuses about their brain size (in general larger than long<br />

thought) and waxes poetic on their social behaviours, such as<br />

herding. “I mean,” he says, “they dominated the terrestrial<br />

realm for 150 million years. And the last 30 years <strong>of</strong> research<br />

has shown they’re not what we once thought – big dumb<br />

lizards up to their armpits in swamps.” – Alec Scott<br />

10 WWW.MAGAZINE.UTORONTO.CA<br />

photo: left, Orbelina Cortez; right, Nadia Van

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