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The novel coronavirus swept across China around January 20, with the Chinese New Year celebration underway. By late March, as U.S. schools were just beginning to shut down, Chinese schools had already been closed for about 10 weeks-and some were beginning to reopen.To get more news about China business school, you can visit acem.sjtu.edu.cn official website.
The education sector was squarely in the middle of China's fight against COVID and the after effects continue to be felt: In early April, the government announced it would delay important exams, including the gaokao, the university entrance exam in China.
In a webinar recently hosted by EdSurge, with support from school networking platform ClassIn, Chinese school leaders shared their insights and lessons learned. Based on that dialogue, as well as other research (including this guide developed by Beijing Normal University and UNESCO), we've pulled together some early lessons learned from China's experience.
Because of the very close relationship between the Chinese government and industry, China took some unique actions. Even so, here are some observations about what Chinese educators discovered as they tried to keep learning going remotely.
1. The Government's Role: Decisive, Sweeping Policy Changes
Few countries have central governments that literally call the shots for the private sector. China does. Since January, officials made many big decisions about when schools and education companies would open or close, and what resources were available to support learning.
China's Ministry of Education (MOE) issued school closure policies for the entire country between January 20 and February 8, affecting China's 278 million students across primary and postsecondary grades. Wuhan, the epicenter of the epidemic, was locked down on January 23. Tutoring centers and daycares closed. The central government suggested K-12 and higher-ed delay starting the new semester and postpone any regional and national exams.
But along with shutting down bricks and mortar schools, China also beefed up two existing virtual ones. One platform, Empower Learning, was built by the government, in collaboration with China's seven largest edtech companies, offering digital K-12 curriculum. The platform provides live streaming courses that students can tap into from their phone or computer at home. The MOE also created its own site: Educloud. This site features videos, teaching plans and communities of the best teachers' lessons recorded over the past eight years.
Although both platforms existed before the COVID crisis to provide free online learning resources to students, they added scheduling tools to help educators select and share materials with students and widely circulated them to the public once the schools closed.
After February 8, the MOE worked with provincial education departments to pick dates for reopening schools. Although not all schools opened at the same time, the government sent clear signals about changes. In addition, in late March, the MOE announced it would delay the university entrance exam, the gaokao, for a month.
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Illegal GPS signal jamming can disrupt local GPS devices and cell phone towers, according to UK reports.
Findings from the Sentinel study presented at the GNSS Vulnerability 2012 conference at England's National Physical Laboratory on February 22 revealed a rise in jamming incidents, as reported by TechWeek Europe. Over a span of six months, roadside monitoring stations documented a total of 60 violations.
Sean Gallegher, writing in Ars Technica, reported on the dangers of interrupting GPS signals. Cell phone systems and even electrical grids rely on GPS signals for time-keeping. Jammers built for auto use to obscure location can affect other devices from 100 yards away and more. Powerful jammers can disrupt signals as far away as 32 kilometers. Yes, jammers have caused problems at airports already. They are illegal to use, but legal to own, in the UK.
Surprise
I had no idea little GPS jammers could cause so much havoc though.
clackerd on arstechnica.com
why would you want to jam the GPS signals? If you're not doing anything wrong then yu have no reason to worry.
Angel Investors on techweekeurope.co.uk
First hand
I know a guy who bought that exact jammer in the picture. I think it was a little over $100 shipped from China. It works. It kills my AT&T iPhone dead. It kills his Sprint phone. It killed everything except one device he's ever tried to test with.
Dilbert on arstechnica.com
The more sophisticated jammers don't cause "noise", but rather they record and replay the pseudorandom generated digits they receive from the various frequencies and time drift them.
zbowling on news.ycombinator.com
Jammers for car usage like this one are used by people to protect their privacy and not to harm vital infrastructures of the city.
Alex White on techweekeurope.co.uk
in 2009 the Newark airport had a daily GPS failure that was finally traced to a trucker using a jammer, presumably to defeat a tracker enforcing safe driving rules.
NelsonMinar on news.ycombinator.com
Authorities and warnings
But... in the end... it mostly just made me want to buy a GPS jammer.
primordius on arstechnica.com
The more we allow our public movements to be tracked, and the more control and oversight we grant the government and corporations, the harder it will become for the public at large if there should ever come a time when they want some of that power back.
Crane on techweekeurope.co.uk
How vulnerable are Google's self-driving cars to GPS jamming?
GiraffeNecktie on news.ycombinator.com
