Agriculture
Seeds of the Future
Keeping Bugs Away from Food
Fast-flying fungal spores
Amphibians
Toads
Salamanders
Salamanders and Newts
Animals
Fishy Sounds
Sea Giants and Island Pygmies
Ants on Stilts
Behavior
Baby Number Whizzes
The chemistry of sleeplessness
Why Cats Nap and Whales Snooze
Birds
Kingfishers
Rheas
Woodpecker
Chemistry and Materials
Sticking Around with Gecko Tape
Boosting Fuel Cells
The hungry blob at the edge of the universe
Computers
Music of the Future
Graphene's superstrength
A Classroom of the Mind
Dinosaurs and Fossils
Fingerprinting Fossils
Dinosaur Dig
Dino-Dining Dinosaurs
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Hints of Life in Ancient Lava
Coral Gardens
Getting the dirt on carbon
Environment
Blooming Jellies
Shrimpy Invaders
Watching for Wildfires in Yellowstone
Finding the Past
A Plankhouse Past
Words of the Distant Past
A Big Discovery about Little People
Fish
Sturgeons
A Jellyfish's Blurry View
Halibut
Food and Nutrition
The mercury in that tuna
Making good, brown fat
Moving Good Fats from Fish to Mice
GSAT English Rules
Adjectives and Adverbs
Capitalization Rules
Problems with Prepositions
GSAT Exam Preparation Jamaica
GSAT Scholarship
GSAT stars reap scholarship glory
2014 GSAT Results for Jamaican Kids
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Practice Papers | GSAT Mathematics | Maths
Results of GSAT are in schools this week
GSAT Mathematics
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
42,000 students will sit for the GSAT Exam in two weeks
Math of the World
Human Body
Taking the sting out of scorpion venom
Gut Germs to the Rescue
Sleeping Soundly for a Longer Life
Invertebrates
Scorpions
Mosquitos
Tarantula
Mammals
Bandicoot
Cows
Prairie Dogs
Parents
What Not to Say to Emerging Readers
How children learn
Choosing a Preschool: What to Consider
Physics
Einstein's Skateboard
Thinner Air, Less Splatter
Echoes of a Stretched Egg
Plants
Sweet, Sticky Science
The algae invasion
A Change in Leaf Color
Reptiles
Snakes
Garter Snakes
Iguanas
Space and Astronomy
A Family in Space
Baby Star
Sounds of Titan
Technology and Engineering
Riding Sunlight
Supersuits for Superheroes
Dancing with Robots
The Parts of Speech
What is a Noun
Countable and Uncountable Nouns
Pronouns
Transportation
Tinkering With the Basic Bike
Are Propellers Fin-ished?
Robots on the Road, Again
Weather
Warmest Year on Record
The Best Defense Is a Good Snow Fence
Polar Ice Feels the Heat
Add your Article

Math is a real brain bender

Donít feel bad if it took forever to wrap your brain around math. Mastering arithmetic requires major reorganization in the way the brain works. As kids grow up, the parts of the brain used to do math problems change. In elementary school kids, a region of the brain called the prefrontal cortex lights up while doing arithmetic. But by the time kids become adults, that region takes a backseat when crunching numbers, and another part of the brain, called the left superior temporal gyrus, kicks in. A nearby region called the parietal cortex also plays a bigger role in adultsí calculations. Scientists have shown that the left superior temporal gyrus may help connect the sounds of speech to written letters. The region may also get in gear when you play an instrument, helping you link the sound of your clarinet solo to the notes written on sheet music. Itís possible that this part of the brain helps adults tie the symbols for numbers to precise amounts, says Daniel Ansari, of the University of Western Ontario in London, Canada. Ansari and his colleagues conducted the study that uncovered the shift in brain regions used for math. To understand how the brain tackles math at different ages, Ansariís team matched 19 children, ages 6 to 9, with 19 adults, ages 18 to 24. The researchers showed both groups pairs of written numbers from one to 10, and then asked the kids and adults to say which number was bigger. Next, the people were shown pairs of images ó each one with a group of one to 10 squares. The volunteers were asked to say which image in the pair had more squares. During the experiment, the scientists took pictures of the participantsí brains using a functional MRI scanner. This machine measures blood flow, which offers clues about the activity of certain regions of the participantsí brains during each task. Adults performed the tasks better than children, but it took everyone longer to choose the bigger amount when the difference between the numbers was smaller. (For instance, deciding if two squares is more than three squares was harder than comparing one square and nine squares.) The scientists found that as the numbers got closer together, the parietal cortex got more active in adults, but didnít rev up in kidsí brains. ďOur results demonstrate that the brain basis of number processing changes as a function of development and experience,Ē Ansari says. The findings suggest that peopleís ability to link symbols with precise quantities builds on an older system used to gauge rough amounts. Animals like monkeys use this older number sense, for instance, to estimate the better deal when choosing between handfuls of sunflower seeds. After many years of math problems, however, peopleís parietal cortex takes over from the older system, jumpstarting translation of approximate amounts into symbolic, precise numerals. And after even more practice, the left superior temporal gyrus takes over major math tasks, Ansari suspects.

Math is a real brain bender
Math is a real brain bender








Designed and Powered by HBJamaica.com™