Mathblogging.org
Recent Posts
http://www.mathblogging.org/scripts/feed.php
2014-09-17T19:36:46-04:00
No copyright asserted over individual posts; see original posts for copyright and/or licensing.
Mathblogging.org Atom serializer
NSF Secure & Trustworthy Cyberspace solicitation and joint program with US-Israel BSF
http://www.mathblogging.org/post/98972
2014-09-17T12:31:55-04:00
salilvadhan
(1) The new NSF Secure and Trusthworthy Cyberspace (SaTC) solicitation has been released. Note that Frontiers (up to $10M) have been replaced by Large (up to $3M) proposals. The submission deadlines are: Small: January 14, 2015 Medium: November 10, 2014 Large: November 20, 2014 Education: December 19, 2014 (2) NSF and the US-Israel Binational Science Foundation […]
Various and Sundry
http://www.mathblogging.org/post/98977
2014-09-17T12:27:39-04:00
woit
The MacArthur Foundation today announced “Genius” grants of $625,000 to 21 people, including two mathematicians, Jacob Lurie and Yitang Zhang. While there was a time these awards often went to mathematicians and theoretical physicists (the 1987 winners included string theorists … Continue reading →
Practical tips for a (newly) qualified maths teacher
http://www.mathblogging.org/post/98970
2014-09-17T12:25:00-04:00
Joanne Morgan
Student teachers, NQTs and experienced teachers all have one thing in common - they haven't got it all figured out yet. I certainly haven't - every year I try to use my time more effectively and teach maths more effectively. Here's my top ten tips for newbies.
1. Plans
At my school we used to have 4.5 periods a week to teach A level. That was reduced to 4 periods a week due to budget cuts - a
Meet The Class Of 2014 (MacArthur Fellows): Yitang Zhang
http://www.mathblogging.org/post/98973
2014-09-17T11:49:00-04:00
Unknown
Meet The Class Of 2014 (MacArthur Fellows): Yitang Zhang: MacArthur Foundation:
Yitang Zhang is a mathematician who emerged from relative obscurity with a landmark achievement in analytic number theory: the so-called bounded prime gap, which essentially establishes that the difference in spacing between two consecutive prime numbers is, infinitely often, bounded by a fixed number.
[source: mme rss]
Publisher updates with more info on staph retraction
http://www.mathblogging.org/post/98971
2014-09-17T11:30:15-04:00
Cat Ferguson
We brought you this story last week, about a paper on drug resistant staph being retracted for a lab error. Now, we’ve got an update from Rachel Safer, senior editor for medical journals at Oxford University Press, where the paper was published. Apparently, the researchers “inadvertently relied upon the use of a test system that was […]
Frankl, My Dear : 3
http://www.mathblogging.org/post/98966
2014-09-17T11:30:12-04:00
Jon Awbrey
Re: Dick Lipton & Ken Regan • (1) • (2) Here’s a few pages on differential logic, whose ideas I’ll be trying out in the present setting: Differential Logic : Introduction Differential Propositional Calculus Differential Logic and Dynamic Systems I … Continue reading →
My Year with Standards Based Grading (Part 2)
http://www.mathblogging.org/post/98968
2014-09-17T11:27:00-04:00
Katrina Hamilton
I'm really bad at blogging. I have lots of ideas scribbled down, and even a few drafts started, but I struggle with actually writing things up and publishing them. I'm trying to work on that. The result, however, is a large gap between my last post and what's happening now. There's so much that's happened in between that I don't have documented. This is my attempt at a "catch-up" post. After this, I'm just going to move forward, and not focus on the past I don't have written up. (I'm sure I'll
[…]
State of the Union
http://www.mathblogging.org/post/98965
2014-09-17T11:13:00-04:00
Unknown
Lately I’ve been interested in textual data, which has opened a whole new world of things to think – and write – about. One interesting thing about text data is that the entire world of written word becomes your analytic garden. While exploring this garden, I thought it would be interesting
Philosophy's Western Bias and What Can Be Done About It
http://www.mathblogging.org/post/98963
2014-09-17T10:59:25-04:00
Eric Schwitzgebel
Guest post by Christian Coseru One may be forgiven for thinking, on reading Brian Leiter's diatribe against identity politics and the danger it poses for academic philosophy, that there is a swell in 'consumer demand' for expanding the philosophy curriculum in questionable directions and for the wrong reasons. To clarify:...
Changing Philosophical Career Paths
http://www.mathblogging.org/post/98964
2014-09-17T10:45:14-04:00
Samir Chopra
By: Samir Chopra I began my academic philosophy career as a 'logician.' I wrote a dissertation on belief revision, and was advised by a brilliant logician, Rohit Parikh, someone equally comfortable in the departments of computer science, philosophy and mathematics. Belief revision (or 'theory change' if you prefer) is a...
Dyslexic Mathematician
http://www.mathblogging.org/post/98960
2014-09-17T10:36:03-04:00
toomai
This is part of a cluster of posts about dyslexia and ADHD. I have two learning “disabilities” (“learning differences” is a more politically correct, and more accurate term): dyslexia, and ADHD. Some people have been surprised to learn this. I … Continue reading →
5 Math Pitfalls for Journalists
http://www.mathblogging.org/post/98959
2014-09-17T10:30:57-04:00
Laura
<br/>
  Whether the story originates from a study or a few well placed numbers would help drive home a salient point, math is as much a part of modern journalism as a catchy lede or the perfect source. But even with great math skills, journalists are in danger of falling into several traps — and unintentionally […]
Recap: Workforce STEMtistics
http://www.mathblogging.org/post/98967
2014-09-17T10:10:48-04:00
Marcella
In case you don't follow us on Twitter (you really should!), CTEq just wrapped up an exciting STEMtistics campaign focused on the past, present, and future of the STEM workforce. STEMtistics are shareable facts that are great for use in presentations, on social media, and even on your website to help you make the case for STEM.Tags:  STEMtistics, jobs & workforce
Hyperbolic (or Simple) Discounting
http://www.mathblogging.org/post/98958
2014-09-17T09:47:00-04:00
Tim Johnson
I was critical of Doyne Farmer in my previous post, and in response I got a message from someone I respect<br />But I like Farmer's work... solar costs follow Moore's law; and we should value future more (hyperbolic discount rates).What struck me is that there is an incongruity in associating Moore's Law and Hyperbolic discounting, which I shall explain, and when combined with the first statement points to something more peculiar: do ideas now derive their legitimacy from individuals rather than in […]
For funsies
http://www.mathblogging.org/post/98957
2014-09-17T09:38:32-04:00
anngorsuch
I made a quick intro video for my friend’s 3rd grade class about my house in Peru. It’s very basic, but you might find it entertaining :)
What do you do to visualize uncertainty?
http://www.mathblogging.org/post/98962
2014-09-17T09:35:29-04:00
Andrew
Howard Wainer writes: What do you do to visualize uncertainty? Do you only use static methods (e.g. error bounds)? Or do you also make use of dynamic means (e.g. have the display vary over time proportional to the error, so you don’t know exactly where the top of the bar is, since it moves while […]
The post What do you do to visualize uncertainty? appeared first on Statistical Modeling, Causal Inference, and Social Science.
A PNAS expression of concern appears — and so does its revealing backstory
http://www.mathblogging.org/post/98954
2014-09-17T09:30:34-04:00
Ivan Oransky
When retraction notices and expressions of concern appear, particularly those that are opaque, we try our best to find out what’s behind them, whether it’s better explanations or the steps that led to moves. Today, we have one story in which we’ve been able to learn a lot more than usual. In April, Bas van […]
App Inventor Computes With Big Integers
http://www.mathblogging.org/post/98953
2014-09-17T09:25:16-04:00
Rick Regan
I recently wrote that App Inventor represents its numbers in floating-point. I’ve since discovered something curious about integers. When typed into math blocks, they are represented in floating-point; but when generated through calculations, they are represented as arbitrary-precision integers — big integers. These blocks compute 2234112: They give this 376-digit answer: The answer is correct, [...]By Rick Regan (Copyright © 2014 Exploring Binary)<br/><br/>App Inventor Computes With
[…]
George Hart Workshop on Symmetry
http://www.mathblogging.org/post/98951
2014-09-17T09:00:18-04:00
MrHonner
Through Math for America, I had the pleasure of participating in a one-day workshop on symmetry led by well-known mathematician/computer scientist/sculptor George Hart. The workshop featured some great math and some excellent hands-on projects that really had us exploring some deep mathematical ideas. We began the day by talking a bit about what symmetry is and […]
At least we can all agree that ad hominem and overly general attacks are bad
http://www.mathblogging.org/post/98948
2014-09-17T09:00:00-04:00
Mark
I keep meaning to write something substantial about Conor P. Williams who is, among other things, the voice of Talking Points Memo in the field of education. Williams is a particularly good source of material for the emerging thread about the way the reform movement has recently started dealing with the emergence of prominent critics.<br /><br />Here's a brief but representative example.<br />I’m far from convinced by everything that gets done today in the name of education reform. But
[…]
Math Reflection 180: Day 13
http://www.mathblogging.org/post/98961
2014-09-17T08:57:27-04:00
banderson02
The lesson or activity we did in class today reminded me of (write what it reminded you of and explain the connection between the two)Filed under: Math Reflection 180 Tagged: Connections, Math Reflection 180, Reflection
A Geometric Representation of the Distributive Property
http://www.mathblogging.org/post/98955
2014-09-17T08:56:50-04:00
Math Proofs
The distributive property of multiplication states that for all real numbers , and , then . In this short post, we are going to see the visual representation of ‘visual proof’ of this property where it is represented as area. However, one limitation of this representation is it does not represent negative values for , or […]<br/>Continue reading...
The post A Geometric Representation of the Distributive Property appeared first on Proofs from The Book.
9/17/14
http://www.mathblogging.org/post/98956
2014-09-17T08:30:22-04:00
Unknown
√9 = 17 - 14
Also:
9 = (1 * 7) + (1 * √4)
Also:
|√9 + 1 - 7| = |1 - 4|
position at Warwick
http://www.mathblogging.org/post/98945
2014-09-17T08:18:32-04:00
xi'an
A new position for the of Professor Of Statistics and Data Science / Director of the [newly created] Warwick Data Science Institute has been posted. To quote from the job description, “the position arises from the Department of Statistics’ commitment, in collaboration with the Warwick Mathematics Institute and the Department of Computer Science, to a […]
Geometrie im Alltag
http://www.mathblogging.org/post/98949
2014-09-17T08:17:23-04:00
Thilo
Autowerkstätten, die Mechanik und Diagnostik anbieten, kennt man auch aus Deutschland. Autowerkstätten, die Geometrie anbieten, habe ich in Deutschland noch nicht gesehen, sind in Polen aber recht häufig. Gemeint ist vermutlich Fahrwerksgeometrie? Aufgenommen irgendwo zwischen Świnoujście und Koszalin.
Could you build a nuclear power plant given the right reward?
http://www.mathblogging.org/post/98952
2014-09-17T07:38:57-04:00
David Wees
From Facebook:
"my daughter and I were brought in to talk about her " learning disabilities " and how she was not applying herself . They talked about punishments and incentives . After listening to everyone I asked . " If I asked you to build a nuclear power plant could you do it ?" They all answered " no " So I ask well what if i took a way all your free time at work , and did not allow you to go to the ofice party because you could not build it ? Could you build it then ?" Again the answer
[…]
Young's Double Slit Experiment - A Strange Conclusion
http://www.mathblogging.org/post/98944
2014-09-17T07:28:00-04:00
Ken Abbott
Young's Double Slit Experiment - A Strange Conclusion<br><br> I'm not going to describe this experiment. After all, it's been discussed endlessly and even by some of the world's top physicists. What I'm going to do is give an information theoretic interpretation..<br><br> If you don't want to know which slit the electron went through it behaves like a wave.<br><br> But if you insist on knowing which slit the electron went through it behaves like a particle.<br><br> Is the electron a wave or a particle? It's neither. The</br>
</br>
</br>
</br>
</br>
</br>
</br>
</br>
[…]
Parsing calculus with regular expressions
http://www.mathblogging.org/post/98943
2014-09-17T07:07:53-04:00
L
As a service* to math students everywhere (especially those taking calculus), I started Mathematics.SE Index. The plan is to have a thematic catalog of common exercises in college-level mathematics, each linked to a solution posted on Math.SE. As of now, the site has reasonably complete sections on Limits and Series, with a rudimentary section on […]
September 17, 2014
http://www.mathblogging.org/post/98950
2014-09-17T07:00:00-04:00
Mathematical Association of America
<br /><br /><br /><br />Solution at the bottom of this page.Like this problem? Try our Contest Problem Book series!<br /><br /><br /><br /><br /><br /><br />Exercise your mind daily with a problem from the AMC-8, AMC-10, or AMC-12, provided by Mathematical Association of America's American Mathematics Competitions.
The green-eyed/ blue-eyed puzzle/ conundrum
http://www.mathblogging.org/post/98947
2014-09-17T06:54:31-04:00
Cathy O'Neil, mathbabe
Today I want to share a puzzle that my friend Aaron Abrams told me a few days ago. I’m sure some of you have heard it before, but it’s confusing me, so I’m asking for your help. Set-up Here’s the setup. There’s an island of people, all of whom have either blue eyes or green […]