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Researchers at the National Institutes of Health have created a mathematical model -- and an accompanying online weight simulation tool -- of what happens when people of varying weights, diets and exercise habits try to change their weight.

However, the computer simulation of metabolism is meant as a research tool and not as a weight-loss guide for the public. The computer program can run simulations for changes in calories or exercise that would never be recommended for healthy weight loss. The researchers hope to use the knowledge gained from developing the model and from clinical trials in people to refine the tool for everyone.

"Mathematical modeling lets us make and test predictions about changes in weight and metabolism over time," Hall said. "We're developing research tools to accurately simulate physiological differences between people based on gender, age, height, and weight, as well as body fat and resting metabolic rate."

And just because there’s a lot to choose from doesn’t mean all the programs possess the same ability to teach math on a long-lasting, conceptual level.

Although kids are quick to pick [technology] up, they’re not that quick at learning to relate it to a mathematical concept.

what you want is for students to realize, ‘I don’t need to memorize a thousand different rules. I’m beginning to observe commonalities.

The deeper the well, the higher the pressure, and the higher the risks associated with tapping oil from wells. During drilling, when the pressure applied to balance the hydrocarbon pressure in a well is not great enough to overcome that exerted by gas and fluids in the rock formation drilled, water, gas, oil, or other formation fluid can enter the hole. This is called a "gas kick," which in worst-case scenarios can lead to blowouts. In a paper published earlier this month in the SIAM Journal on Mathematical Analysis, author Steinar Evjepresents new analysis of a mathematical model that has applications to the study of such gas kicks in deep-water oil wells.

Simulators have become an important tool for the development of new, more efficient and safer drilling methods.

The use of mathematical models is important for the development of tools that can help simulate, and hence, increase control in deep-water well operations.

The $49 Fuse application allows users to learn at their own pace, Blumenfeld said. If students miss a class, they can tap into about 400 video tutorials led by textbook author Edward Burger, a math professor at Williams College in Massachusetts. “Videos allow for anywhere, anytime instruction,” Blumenfeld said. “For students who might have missed class or didn’t understand the lesson, you can push a button and have it explained again and again. You have a teacher available anytime, anywhere.”

Test scores in Riverside, Calif., jumped 30 percentage points, from 60 percent to 90 percent proficiency in math, he said. A smaller iPad program in some of Chicago’s elementary schools also resulted in improvement, Ebert said.

Indeed, Algebra 1 is one of the most-failed courses in the School District, Ebert said. All Nevada 10th graders are tested on the freshman-level math subject before they can graduate. Only half of the students in Clark County passed the math section of the High School Proficiency Exam on their first try last year. A quarter of students won’t pass the math section by their senior year and, as a result, will fail to graduate. This year, the district has identified about 9,000 seniors who haven’t passed the proficiency exam. They are at risk of dropping out, Ebert said.

“Developmental mathematics has become a burial ground for the aspirations of myriad students trying to improve their lives through education,” said Carnegie senior partner Uri Treisman. A MacArthur fellow, Treisman is also a professor of mathematics at The University of Texas at Austin.

By completely reimagining the way math is taught, Statway and Quantway align with Kresge’s goal of supporting innovation that improves higher education productivity. The programs also provide pathways to and through college for students who might otherwise be left behind.

In 2010, The Kresge Foundation added its support – a two-year, $2 million grant – to that of the Carnegie Corporation of New York, the Bill & Melinda Gates Foundation, The William and Flora Hewlett Foundation and Lumina Foundation.

Back-to-school facts: $7 billion-plus in shopping and everything else