Science and Engineering: Innovation, Research, Education and Economics
K-12, Primary and Secondary School, Science and Engineering Category
About or related to (k-12) science and engineering education. Likely of interest to teachers and administrators. Teachers may also find many of the science and engineering students category posts useful.
Recommended posts: Middle School Engineers - k-12 Engineering Education - k-12 Engineering Outreach Programs - Colorado Science Teacher of the Year
Related: Curious Cat Alumni Connections - Web directory of k-12 education improvement sites


May 5, 2008

Fat Cell Count Set in Childhood

Fat cell number is set in childhood and stays constant in adulthood

As fat people have an abundance of fat tissue, the natural assumption is that fat people have more fat cells, or ‘adipocytes’. That’s only part of the story - it turns out that overweight and obese people not only have a surplus of fat cells, they have larger ones too.

During adulthood, about 8% of fat cells die every year only to be replaced by new ones. As a result, adults have a constant number of fat cells, even those who lose masses of weight. Instead, it’s changes in the volume of fat cells that causes body weight to rise and fall.

we couldn’t have a clearer indication of the importance of childhood as a window for preventing obesity and the chronic diseases affected by it - cancer, heart disease, diabetes and more.

The message is especially stark following the recent Foresight report, which estimated that if current trends are left unchecked, by 2050 a quarter of all UK children under the age of 16 will be obese. The knowledge that their fat cell count will then be set for life makes the cost of inaction even higher. Fortunately, it seems that the UK Government is taking appropriate steps and recently pledged over a third of a billion pounds on a concerted strategy to tackle childhood obesity.

Related: $500 Million to Reduce Childhood Obesity in USA - Obesity Epidemic Explained - Kind Of - Drinking Soda and Obesity

May 1, 2008

Presidential Award for Top Science and Math Teachers

Top Science and Math Teachers Receive Presidential Award

For the 2007 awards, 99 middle school and high school math and science teachers are receiving this recognition. In the citation from the president, winners are commended “for embodying excellence in teaching, for devotion to the learning needs of the students, and for upholding the high standards that exemplify American education at its finest.”

Each winner receives a $10,000 award from NSF, as well as a trip for two to Washington, D.C., for a week of celebratory events and professional development activities.

Among the activities during that week are a day with scientists and science educators at NSF; meetings with members of Congress and federal agency leadership; and a reception and dinner at the U.S. Department of State featuring guest speaker Dorothy Metcalf-Lindenburger, a NASA Astronaut-Mission Specialist.

Related: Presidential Award for Excellence in Mathematics and Science Teaching - Einstein Fellowship for Teachers - NSF Graduate Teaching Fellows in K-12 Education - The Importance of Science Education - Education Resources Directory for Science and Engineering

April 26, 2008

Team America Rocketry Challenge

On May 17th, in The Plains, Virginia, the Team America Rocketry Challenge finals will be held. After a full day of launches, held at the Great Meadows facility, the winners will be crowned and $60,000 in scholarships will be divided up among the top finishers.

Related: Goldwater Science Scholarships - Siemens Competition in Math, Science and Technology - Student Algae Bio-fuel Project

April 21, 2008

Viruses Eating Bacteria

All the World’s a Phage by John Travis:

“Believe it or not, nobody had looked before,” says Suttle. “On average, there are 50 million viruses per milliliter in seawater. The question is, What the heck they’re doing there?” Microbiologists then documented similar, and even higher, concentrations of phages in soil samples. This led to estimates of 1031 bacteriophages worldwide, a staggeringly large number that many scientists initially dismissed. “We can’t wrap our brains around it,” says Pedulla. “If phages were the size of a beetle, they would cover the Earth and be many miles deep.”

According to estimates put forth by Suttle, phages destroy up to 40 percent of the bacteria in Earth’s oceans each day.

The students collected soil from barnyards, gardens, and even the monkey pit at the Bronx Zoo. The scientists then taught the students how to isolate a bacteriophage from the soil by growing the viruses in Mycobacterium smegmatis, a harmless bacterial relative of the microbe that causes tuberculosis. “We guarantee them that the bacteriophage they find will never have been discovered before. We know that because the diversity is so high, and we’ve never isolated the same bacteriophage twice,” says Hatfull.

In the April 18 Cell, Hatfull and his professional and teenage collaborators describe the genomes of 10 soil-dwelling bacteriophages that they had isolated. Of the more than 1,600 genes that the team identified, about half are novel, that is, they don’t match any previously described genes in any other organism.

Science is full of amazing new frontiers. Some other amazing stuff: Thinking Slime Moulds - Tracking the Ecosystem Within Us - Retroviruses - Energy Efficiency of Digestion - One Species’ DNA Discovered Inside Another’s

April 15, 2008

Turtle Camps in Malaysia

Drawing of sea turtles

Pelf Nyok has posted drawing of turtle camps students that she taught in Malaysia. On the image shown on the left:

The third poster shows the threats that our turtles are facing — a turtle is trapped in a fisherman’s net, a turtle is consuming a plastic bag, which it mistakes as a jellyfish, and there are rubbish on the sea floor.

Pelf is on her way to the USA for turtle conservation training on the Asian Scholarship Program for in-situ Chelonian Conservation:

a 4-month scholarship, and involves professional training in the conservation of turtles (including sea turtles, freshwater turtles and tortoises, I presume). The flow of the program has yet to be finalized but according to the Director of the Program, we (the Laotian student and I) would be spending one month visiting turtle scientists and turtle research centers in New Jersey, Tennessee, Florida and maybe California.

And the remaining 3 months would be spent at the Wetlands Institute at Stone Harbor, New Jersey. The training will be conducted at the Wetlands Institute, together with other local participants.

(more…)

April 12, 2008

Eating Breakfast Keeps Teenagers Leaner

Breakfast ‘keeps teenagers lean’

In a five year study of more than 2,000 youngsters, those who skipped breakfast weighed on average 5lbs (2.3kg) more than those who ate first thing. This was despite the fact that the breakfast-eaters consumed more calories in the course of the day. But the study in Pediatrics found they were likely to be much more active.

The University of Minnesota research adds weight to a growing body of evidence that those who eat breakfast - whether young or old - are leaner than those who do not.

“The real problem is the profusion of messages about obesity. We need to make clear that eating regular meals is vital - and that a proper breakfast is very important. “If you eat well first thing, you’ll feel brighter, you’ll have more get up and go - and that will mean you’ll expend more energy.”

Teenagers are not the only ones who may benefit from sitting down to a proper breakfast. In a study of nearly 7,000 middle-aged people in Norfolk, a team from Cambridge University found that those who ate the most in the morning put on the least amount of weight.

Related: Breakfast Eating and Weight Change in a 5-Year Prospective Analysis of Adolescents: Project EAT (Eating Among Teens) - $500 Million to Reduce Childhood Obesity in USA - Eat food. Not too much. Mostly plants - Food Health Policy Blog

April 9, 2008

Computer Science Unplugged

Computer Science Unplugged offers a free, interesting collection of activities designed to teach the fundamentals of computer science without requiring a computer. Because they’re independent of any particular hardware or software, Unplugged activities can be used anywhere, and the ideas they contain will never go out of date. Unplugged activities have been trialled and refined over 15 years in classrooms and out-of-school programs around the world maintained by the University of Canterbury in Christchurch New Zealand.

Topics include: Binary Numbers, Text Compression, Error Detection, Searching Algorithms, Sorting Algorithms, Steiner Trees and Public Key Encryption.

Related: Leadership Initiatives for Teaching and Technology - Fun k-12 Science and Engineering Learning - Education Resources for Science and Engineering - k-12 Engineering Education

April 5, 2008

False Teeth For Cats

False Teeth For Cats! What Next?

A team of eight British college students, calling themselves Fangs A Lot, have created the first false tooth for a cat and set up a business, Animal Solutions, to market false teeth for cats, dogs, and other animals. The group and its prototype false cat tooth have made it to the finals of the Ideas Igloo Roadshow, an invention contest for college students sponsored by Britain’s Make Your Mark Campaign and Microsoft, UK.

False teeth for cats may sound ridiculous, but they could be a solution to a serious problem for cats. Cats have notoriously bad dental problems. Cat owners seldom brush their cats’ teeth or scrape the surfaces of the teeth to remove plaque. By the time a cat is 3 or 4 years old, she may already have periodontal disease that can lead to tooth loss. Tooth loss may also come about as a result of tooth breakage, particularly in the canine teeth.

Link provided via our post suggestion page.

Related: Engineering Students Design Innovative Hand Dryer - UK Young Engineers Competitions - La Vida Robot - Eco-Vehicle Student Competition - Genetically Engineered Machines Competition

April 4, 2008

FIRST Robotics in Minnesota

photo of students working on robot

Robotics: The future is now

As educators statewide push for better science and math education, the popularity of an international robotics competition has grown drastically among Minnesota high schools. The FIRST Robotics competition, where high school students build complicated robots to push a ball along and do other tasks, has 54 Minnesota teams this year, up from just two in 2006.

Area educators attribute the growth to dramatic fundraising by Minnesota technology companies desperate to encourage future engineers and a statewide push to improve science and technology education. “It’s a long-term investment,” said Dr. Stephen Oesterle, senior vice president of medicine and technology for Medtronic, who pushed other companies to donate.

The competition started in New Hampshire in 1992. Now, it includes more than 1,500 teams from around the world. Founded by entrepreneur Dean Kamen, the inventor of the Segway, FIRST stands for “For Inspiration and Recognition of Science and Technology.”

Photo by By Bruce Bisping, Star Tribune, from left - Mindy Blom, Schanell Gauna, Andrade and teacher Jill Johnson

Related: National Underwater Robotics Challenge - Northwest FIRST Robotics Competition - Robots Wrestling, Students Learning - Rhode Island FIRST - 2006 FIRST Robotics Competition Regional Events

March 25, 2008

2008 Intel Science Talent Search

2008 Intel Science Talent Search

When Shivani Sud was six years old, one of her immediate family members was diagnosed with a brain tumor. Inspired by the doctors who helped her loved one recover, Shivani set her sights on a career in medicine.

Fast forward to Intel STS 2008, where the 17-year-old senior from Durham, North Carolina, presented research focused on identifying stage II colon cancer patients at high risk for recurrence and the best therapeutic agents for treating their tumors. Whereas the standard method of characterizing tumors relies on visual information (such as size, degree
of metastasis, and microscopic structure), Shivani developed a “50-gene model” which uses gene expression to link multiple genetic events that characterize various tumor types to more accurately predict the recurrence of colon cancer. Additionally, Shivani’s model can be used to identify drugs that may be most effective in treating each patient.

In 2006 she attended the Davidson Institute, summer program at Davidson College and received the Davidson Fellows Scholarship.

And now I can segue to the Davidson Wildcats victories in the NCAA basketball tournament last weekend (I graduated from Davidson, by the way, and grew up in Madison). Davidson will play the Wisconsin Badgers on Friday. My picks are doing pretty well.

Related: 2006 Intel Science Talent Search - Intel International Science and Engineering Fair 2007 - NPR report on 2008

March 22, 2008

Scientific American Frontiers Webcasts

All shows of the PBS TV show, Scientific American Frontiers are available online. The shows feature Alan Alda exploring a wide range of scientific ideas. Specific information for teachers if provided for each show. Shows include:

  • Going Deep - “In 1977, scientists aboard Alvin were exploring the Galapagos Rift in the Pacific Ocean when they made one of the most important discoveries in modern biology. Hydrothermal vents are underwater volcanoes erupting magma-heated, mineral-rich water out of cracks on the seafloor thousands of feet beneath the surface. Despite the enormous pressure and total darkness, the vents were found to support an astonishing array of animal life.”
  • The Dark Side of the Universe - Dark matter, dark energy and the universe.
  • Natural Born Robots - “The next generation of robots swim like fish, play soccer and even experience emotions.”
  • Science and Sports - “Science enables people to run quicker, climb higher, hit farther, and sail faster in this sports special.”

Related: BBC In Our Time Science Podcast Archive - Curious Cat Science Webcast Directory - Online Science Resources for Teachers - UC-Berkeley Course Videos Online - ScienceLive video archive from Cambridge University

March 15, 2008

Grade School Engineering

Reading, Writing … And Engineering

More than 2,200 middle and high schools use engineering courses offered by Project Lead the Way, a Clifton Park, N.Y., nonprofit that receives industry support, up from just 12 when the initiative started in 1997. And Infinity Project, developed out of Southern Methodist University in Dallas, is now in 300 schools, up from 12 in 1999. The impact of these initiatives on the ranks of engineers remains to be seen.

Besides creating curricular approaches, groups are lobbying state governments to add engineering to their education standards.

Massachusetts included engineering content in its state science requirements for grades K-12 starting in 2001. New Hampshire began sprinkling engineering and technology concepts into its science curriculum starting last school year. New Jersey incorporated engineering concepts into its state education standards starting in 2004. And more states are following: Texas is working on creating standards for an engineering course that can be used to fulfill a high-school science credit.

Teaching through problem-solving storybooks that feature characters from around the globe “becomes a lot richer and is liberating for many kids and many teachers,” she says. The curriculum can cost as little as $40 — the price of a teacher’s binder, including lesson plans and one storybook. For about $6,000, a school could furnish materials, refills and a storybook for each student in every grade.

Related: resource directory for teachers - k-12 Engineering Education (project lead the way) - k-12 Engineering Education - Lego Learning - Economic Benefits of Investing in Science Education - Engineering Activities: for 9-12 Year Olds - Yale Cultivates Young Engineers - Playing Dice and Children’s Numeracy - Engineering Education Advocate - National Underwater Robotics Challenge

March 14, 2008

Technology and Fun in the Classroom

Bridging technology with fun

Mitch Lown and Dave Arndt teach technology education to students at Bangor High School and West Salem High School. A few of the courses they teach were once, years ago, called “shop class,” but the curriculum is far more advanced today. Not only are these not your father’s shop classes, they aren’t shop classes at all.

Computer programs, 3-D designs, architectural drawing, engineering, mass production and the design and marketing of products are only some of the areas local high school students are tackling in Lown and Arndt’s classes.

In their manufacturing classes, both Lown and Arndt give students a feel for what it’s like to set up a business and produce and sell a product. And they do make a profit. Lown’s students, for example, built and sold mounting kits for deer antlers and made a profit on the venture. Arndt said he always stays conscious of the world that students will face after graduation.

“I address every class as if it’s a job,” he said. “We’re not here to waste time because that’s not the way it’s going to be when they get in the job market. The biggest challenge for me is changing the attitudes of some students and instilling a work ethic. If they say they are going to do something, they need to follow through on that.”

Related: Educational Institutions Economic Impact - Middle School Engineers - Inspire Students to Study Math and Science - Computer Game and Real World Education - Kids in the Lab: Getting High-Schoolers Hooked on Science

March 5, 2008

Phun Physics

Coolest science toy ever

Phun is without question the greatest computer toy in the history of the universe, if this had been around when I was a kid I would be a frickin genius by now. You don’t need things any more. It’s extremely easy to use. As a starter tip, turn gravity off when you’re attaching stuff to the background (right click after selecting “affix” tool).

Very cool. Get your Phun (2D physics software) for free. Phun is a Master of Science Theises by Computing Science student Emil Ernerfeldt.

Some other very cool stuff: Cool Mechanical Simulation System - Scratch from MIT - What Kids can Learn - Lego Autopilot First Flight - Awesome Cat Cam

February 23, 2008

Thailand’s Contribution to the ISEF

Intel to send 5 to US

Intel Microelectronics (Thailand) Ltd is sponsoring five young Thai students to participate in the 59th Intel International Science and Engineering Fair (Intel ISEF) in Atlanta, Georgia

Two of the individual entries are a musical instrument sound analysis and recognition system, which won the first prize in the computer science category, and was developed by Boonyarit Somrealvongkul, and a method of measuring a curved path’s radius with a modified car, which took first prize in the engineering category and was developed by Ronnapee Chaichaowarat.

The third project is a team entry, “New Plywood Products”, the first prize winner in the environmental science category, developed by Pheemadej Prasitwarawej, Tanavorakit Bangkeaw and Manapas Hararak, from Montfort College, Chiang Mai.

Over 1,500 of the brightest young scientists from around the world attend the fair every year, where they share ideas, showcase cutting-edge science projects and compete for more than $3 million (94.5 million baht) in awards and scholarships.

Related: Intel International Science and Engineering Fair 2007 - Intel International Science and Engineering Fair Awards - Directory of Science Fairs

February 21, 2008

High School Students in USA, China and India

2 million minutes is a documentary film looking at education in USA, China and India. The producers offer a blog, What Should America Do?, which is interesting.

this blog offers deeper insights into education in China, India and the United States, and the challenge America faces. Now you can join a dialog about what governments, communities and families should and are doing to best prepare US students for satisfying careers in the 21st century.

U.S. Students Can’t Compete in High-Tech World

The film follows two students from Carmel High School in Indianapolis, as well as two students from India and two from China. The premise is that they all have roughly 2 million minutes in high school to build their intellectual foundation and prepare for college and a career.

Twenty months in the making, “2 Million Minutes” highlights the pressures and priorities of these students and their families. Ultimately, it provides insight into the changing nature of competition in a technology-based global economy.

“As a high-tech entrepreneur and venture capitalist for the past 25 years,” Compton said,” I can tell you the people who have reaped the greatest economic rewards in the past two decades have been those with the most rigorous and thorough understanding of technology — and thus a solid foundation in math and science — and who have an ability to solve problems and possess entrepreneurial skill.”

I strongly agree with the economic benefits from strong science and engineering education and the personal benefit of science and technology expertise (one small example: S&P 500 CEOs - Again Engineering Graduates Lead).

See some of our previous posts on similar matters: The Importance of Science Education - USA Teens 29th in Science - Scientific Illiteracy - Fun k-12 Science and Engineering Learning - Diplomacy and Science Excellence - Lego Learning

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