Showing posts with label Gauges. Show all posts
Showing posts with label Gauges. Show all posts
Sunday, November 17, 2013
F.C.C. Smartphone App Gauges Speed of User’s Network
So far, the app works only on smartphones that run the Android operating system, but the commission is working on an iPhone version, which it expects to be ready by the end of January. The app provides information on upload and download speeds and on how efficiently data is transmitted, a measure known as packet loss. The app, F.C.C. Speed Test, also will allow the commission to aggregate data about broadband speeds from consumers across the country. It will use the data to create an interactive map, giving consumers a tool to use in comparison shopping rather than relying on wireless companies’ promises. Tom Wheeler, who was presiding over his first F.C.C. meeting as chairman, said the app was a “public beta” version, meaning that the commission wanted to hear suggestions for improvement from consumers and app developers. “We know from experience that this type of transparency about broadband speeds is not only helpful to consumers on a day-to-day basis, but also that it can drive improvements in network performance,” Mr. Wheeler said. The app, available in the Google Play store, will run periodically in the background on a consumer’s phone, automatically performing tests when a user is not otherwise using the phone. F.C.C. officials stressed that the software would not collect any personal or uniquely identifiable information, and that it would release information only after the data was analyzed. The app uses open-source code, and the agency details its methodologies and privacy policy on its website. The commission also voted unanimously to consider, on a case-by-case basis, allowing foreign companies to own more than the current limit of 25 percent of a television or radio licensee. If it approves such a request, however, the F.C.C. might ask the broadcaster to free up some of its airwaves for use in wireless broadband. The commission has been seeking broadcasters that would give up some of their airwaves or move to another part of the broadcast spectrum to free up space that can be auctioned off for more wireless broadband service.
Sunday, June 16, 2013
Study Gauges Value of Technology in Schools
With school districts rushing to buy computers, tablets, digital white boards and other technology, a new report questions whether the investment is worth it. In a review of student survey data conducted in conjunction with the federal exams known as the National Assessment of Educational Progress, the nonprofit Center for American Progress found that middle school math students more commonly used computers for basic drills and practice than to develop sophisticated skills. The report also found that no state was collecting data to evaluate whether technology investments were actually improving student achievement. “Schools frequently acquire digital devices without discrete learning goals and ultimately use these devices in ways that fail to adequately serve students, schools, or taxpayers,” wrote Ulrich Boser, a senior fellow at the Center for American Progress and the author of the report. The analysis of the N.A.E.P. data found that 34 percent of eighth graders who took the math exams in 2011 used computers to “drill on math facts” while less than a quarter worked with spreadsheets or geometric figures on the computer. Only 17 percent used statistical programs. The federal survey data showed striking differences among racial groups and income levels. More than half of the black students who took the eighth-grade math exam in 2011 said they used computers to work on math drills, while only 30 percent of white students said they did. Similarly, 41 percent of students eligible for free and reduced lunches said they used computers for math drills, compared with 29 percent of students whose families earn too much for them to qualify for the lunches. In high school science classrooms, the use of technology evidently has not advanced much past the 1980s. According to the report, 73 percent of students who took the 12th-grade National Assessment science exam said they regularly watched a movie or video in class. Such data, Mr. Boser said, suggested that technology “doesn’t seem to have dramatically changed the nature of schooling.” Experts who study the effectiveness of instructional technology say there is potential for some digital programs to improve teaching. John Pane, a senior scientist at the RAND Corporation, said good technology allowed students to work at their own pace and independently while teachers worked with smaller groups. Mr. Pane conducted a study, financed by the federal Department of Education, of an algebra software program created by Carnegie Learning, a math curriculum developer. He found that high school students who used the program, which was designed to accompany a teacher-led curriculum, showed gains on their state-standardized math tests that were nearly double the gains of a typical year’s worth of growth using a more traditional high school math curriculum. Whether those gains came from the use of technology or changes in the curriculum, he said, was hard to say. But Steve Ritter, chief scientist at Carnegie Learning, said one of the benefits of the technology was that it used the principles of cognitive science to help students gain a deeper understanding of concepts rather than simply drill math problems. “We’re not just seeing whether they got the answer right or wrong,” Mr. Ritter said, “but why they got it right or wrong.”
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