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Met this guy on the road coming across the Dartmore Forest in the fog one day.Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.~Leonhard EulerThe 283rd day of the year;283 is a twin prime. Also it can be expressed as powers of its digits, 283 = 25 + 81 + 35. (Curious students might seek the first multi-digit number for which this is
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While the latest Karen Miller’s A Blight of Mages was mostly a chore to read, this novel The Falcon Throne starts a new series in a completely different universe. In a rather pleasant manner, albeit somewhat predictable and slow-paced. The story takes place in a medieval world split into many small duchies, fighting one another […]

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A discussion on Twitter about yesterday’s project: A really neat conjecture shared by Tracy Johnston Zager led to this paper from Christopher Danielson getting posted in a thread (the direct link to the paper is in the bottom tweet): I’m terrible at evaluating the difficulty that kids will have with various math problems, but the…

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Unizor - Creative Minds through Art of Mathematics - Math4TeensNotes to a video lecture on http://www.unizor.comCylinders - Easy ProblemsProblem 1Prove that an intersection of a cylinder with any plane, that is parallel to its bases and is located in between them, is a circle.Problem 2Prove that an intersection of a cylinder with any plane that contains a generatrix at its two positions around the base is a rectangle.Problem 3A cube with an edge length of d is inscribed into a cylinder such […]

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I’ve made three fundamental changes to my unit exams this year. Part One: Exams as tools for feedback After a student gets an exam back, what’s the first thing they notice? Easy: their overall score. That’s why I’m not putting … Continue reading →

rmathematicus tweeted: @rmathematicus

RT @bhgross144: Hey #SHOT2015 & #histSTM folks: Can you name a *good* biopic about a scientist, inventor, or engineer? #scicomm

2015-10-10 06:46:30

rmathematicus tweeted: @rmathematicus

RT @ptak: #Wittgenstein Tractatus Logico-Philos full text #logic via @openculture http://t.co/3LcGaS49gM

2015-10-10 06:40:51

srcav tweeted: @srcav

Great gems post from @mathsjem http://t.co/yPwxTNFrs2

2015-10-10 06:39:08

rmathematicus tweeted: @rmathematicus

RT @HistAstro: Constellations of the southern hemisphere in Andreas Cellarius', 'Harmonia Macrocosmica', 1661 @LindaHall_org. http://t.co/A…

2015-10-10 06:38:19

srcav tweeted: @srcav

A bizarre solution : why would you do.this?! https://t.co/2aVElXwLly

2015-10-10 06:34:56

rmathematicus tweeted: @rmathematicus

RT @nathan13109: Christoph Scheiner, Jesuit priest, physicist and astronomer who in 1603, invented the pantograph. http://t.co/Na7aOe8WEs

2015-10-10 06:28:17

rmathematicus tweeted: @rmathematicus

RT @TinaAdcock: An important reminder. The same is true of explorers. https://t.co/SHVL7Pf4ms

2015-10-10 06:21:57

rmathematicus tweeted: @rmathematicus

RT @t3dy: Don't forget your Peirce. http://t.co/2O7TglIvsd

2015-10-10 06:17:09

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