Mostrando entradas con la etiqueta Works. Mostrar todas las entradas
Mostrando entradas con la etiqueta Works. Mostrar todas las entradas

viernes, 9 de diciembre de 2011

Spam Works

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Every day three-quarters of all e-mail that flies across the Internet is spam. Some of it tricks customers into installing a virus or forking over personal information to use illicitly. But many spam messages are advertisements for companies that sell real goods, usually prescription drugs, knock-off watches, and pirated software. Millions of Americans see it as a way to save on drugs. “You pay the money, and you get a product,” says Stefan Savage, computer science professor at the University of California, San Diego.

Over several years, Savage has helped bring together a team of more than a dozen researchers at UC Berkeley and UC San Diego to try to understand the economics of spam. Among their findings: A surprising 91 percent of purchases are ultimately delivered, but the “Viagra” mailed to you may not contain the correct dosage or even the right active ingredient.

Savage and his team collected billions of spam e-mail links and have made more than 200 randomized purchases to track the transactions. They traced the spam back to a handful of mostly Russian merchants—known as partnerki—that run sprawling business networks with customer service reps, outsourced distribution, and even bankers. The researchers also got a rare glimpse into the shopping carts of customers to see what they actually buy, the demand that keeps spam businesses alive.


View the original article here

martes, 5 de julio de 2011

Using Technology With Classroom Instruction That Works

Using Technology With Classroom Instruction That WorksWhat are the best ways to incorporate technology into the curriculum? What kinds of technology will support particular learning tasks and objectives? And how does a teacher ensure that technology use will enhance instruction and not be a distraction or a disconnected add-on?
You ll find the answers here.

This book builds on the landmark Classroom Instruction That Works by linking each of the nine categories of effective instructional strategies with educational technology applications and resources. Authors Howard Pitler, Elizabeth R. Hubbell, Matt Kuhn, and Kim Malenoski share research-based recommendations for practice and clarify how to use both new and familiar technologies to

* Set objectives that are specific, flexible, and personal
* Create advance organizers and nonlinguistic representations
* Help students take notes, summarize content, and make comparisons
* Engage students in cooperative learning
* Help students generate and test hypotheses
* Support students in practicing new skills and doing homework, and
* Reinforce students efforts through formative assessment, feedback, and recognition.

Each strategy-focused chapter features cross-curricular examples, many drawn from actual lesson plans, projects, and products. In addition to stories of students learning through inquiry, collaborative projects, games, and other activities that make school exciting and meaningful, you ll find dozens of recommended resources along with expert guidance on planning technology-enhanced lessons aligned with national standards.

Technology can bring a world of information into the classroom and increase teachers ability to individualize instruction and increase student engagement. Using Technology with Classroom Instruction That Works is the key you need to seize this opportunity and take your effective teaching practices and your students learning to the next level.

Price: $27.95


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