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For the last 15 years, to help schools with their nutrition curriculum, the University of North Carolina has offered a series of instruction modules free of charge. Initially delivered by CD-ROM and now online, the program, Nutrition in Medicine, is an interactive multimedia series of courses covering topics like the molecular mechanism of cancer nutrition, pediatric obesity, dietary supplements and nutrition in the elderly.

More recently, Ms. Adams and her colleagues have begun working on online nutrition education programs geared toward practicing physicians.

We already knew that the Kno, a tablet computer designed for college students, would be bigger and heavier than Apple’s iPad. It will also be pricier.

“When you do the math, it actually pays for itself and still saves $1,300 in digital textbook costs,” he said.

To be sure, the Kno is not just a fancy e-reader. It is also a platform that will allow students to take notes, manage projects and organize their college lives.

The New York Times and its Learning Network recently put out a call asking teachers to make videos describing how technology had changed their classrooms. You can watch our pick of the best submissions here.

There is, at least, growing support for experimentation: in March, Arne Duncan, the secretary of education, released a draft National Educational Technology Plan that reads a bit like a manifesto for change, proposing among other things that the full force of technology be leveraged to meet “aggressive goals” and “grand” challenges, including increasing the percentage of the population that graduates from college to 60 percent from 39 percent in the next 10 years. What it takes to get there, the report suggests, is a “new kind of R.& D. for education” that encourages bold ideas and “high risk/high gain” endeavors — possibly even a school built around aliens, villains and video games.

ant time building their own games. Sometimes they design

miniworld, a dynamic system governed by a set of rules, complete with challenges, obstacles and goals. At its best, game design can be an interdisciplinary exercise involving math, writing, art, c

The Bill and Melinda Gates Foundation, the William and Flora Hewlett Foundation, and four nonprofit education organizations are beginning an ambitious initiative to address that challenge by accelerating the development and use of online learning tools.

Just how effective technology can be in improving education — by making students more effective, more engaged learners — is a subject of debate. To date, education research shows that good teachers matter a lot, class size may be less important than once thought and nothing improves student performance as much as one-on-one human tutoring.

Owen, 7, does not have the strength to maneuver a computer mouse, but when a nurse propped her boyfriend’s iPad within reach in June, he did something his mother had never seen before.

Over the years, Owen’s parents had tried several computerized communications contraptions to give him an escape from his disability, but the iPad was the first that worked on the first try.

ver the years, Owen’s parents had tried several computerized communications contraptions to give him an escape from his disability, but the iPad was the first that worked on the first try.