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by Stephen Downes
Mar 15, 2016
Safety in the Cloud
David Burg, Tom Archer, Strategy+Business, 2016/03/15
Instead of putting up a shield, argues this article, cybersecurity can be found in deep data analytics. "It would defend itself by monitoring activity across all its online systems, studying not just the moves of hackers but the actions of legitimate customers as well." The key to this, write the authors, is to put data into the cloud, and specifically "offerings such as Google Cloud Platform, Amazon Web Services, and Microsoft’s Azure." These companies have made major investments in data monitoring and use analysis. They can watch every interaction, every keystroke, and detect intrusion before it happens using pattern recognition. All very good - but who watches the watchers?
Student Engagement
Kelly Christopherson, The Synapse, 2016/03/15
Interestimng discussion of student engagement. "Are we preparing students for today? Are we engaging them in a discussion about what is happening in the present? Too often the mantra is “Prepare for the Future”. In some respects, today isn’t even close to what I thought it was going to be 10 years ago. In other way, it is." Now there are aspects of this discussion I don't exactly agree with - including, for example, the observation that "The current focus on the state of education on a global scale is on what teachers do in the classroom." This is the sort of thinking we need to get away from. It's not what the teacher does that is important. It's what the student does.
The Tau Manifesto
Michael Hartl, 2016/03/15
OK, I'm no mathematician. But this article has me convinced. "Pi (π) is a pedagogical disaster. Try explaining to a twelve-year-old (or to a thirty-year-old) why the angle measure for an eighth of a circle—one slice of pizza—is π/8. Wait, I meant π/4. See what I mean? It’s madness—sheer, unadulterated madness." The author proposes instead that we use Tau (τ) which has the value 2π, or 6.283185307179586… It creates a lot more symmetry in formulae across a range of mathematics. That, by the way, would make Tau Day (to Americans, at least) June 28.
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Copyright 2010 Stephen Downes Contact: [email protected]
This work is licensed under a Creative Commons License.
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