Mathblogging.orgRecent Postshttp://www.mathblogging.org/scripts/feed.php20150530T08:07:2504:00No copyright asserted over individual posts; see original posts for copyright and/or licensing.Mathblogging.org Atom serializerIl problema di maggio (561)  Di frisbee volanti e di birre celatehttp://www.mathblogging.org/post/12034920150530T01:00:2304:00Rudy d’Alembert, Alice Riddle e Piotr Rezierovic SilverbrahmsAdesso parliamo di estate che arriva? Ma no... innanzitutto perché il disegno del nostro Stefano Fabbri è sempre uno spettacolo, e rende l'idea dell'incipiente estate assai meglio di quanto potrebbero fare le nostre povere parole; in secondo luogo, a cosa vi fa pensare l'accoppiata estatematematica? Ma è ovvio, ad una specie di ossimoro, di contraddizione [...]Laurent Schwartz (19152002)http://www.mathblogging.org/post/12034820150530T01:00:0004:00AnneSandrine PaumierCet article propose un aperçu de l'exposition qui se tient à l'École polytechnique à l'occasion du centenaire de la naissance de Laurent Schwartz (19152002).

L'IHP, maison d'histoires
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Piste verte,
featuredIt is a legitimately good sign when a transportation story uses the term “maximum throughput”http://www.mathblogging.org/post/12034720150530T00:30:0004:00MarkTom Vanderbilt writing for the Washington Post:<br />But as good as fastmoving roads might be for the individual driver, they are not the best for the most drivers. As data gleaned from inpavement “loop detectors” on Washington state highways showed, those highways were able to achieve “maximum throughput” — pushing the most cars through one segment of road in a given time — at speeds that were roughly 80 percent of the posted speed limit of 60 mph. Why? At higher speeds, drivers need
[…]Check Out Knowledgehook’s FREE Gameshow Assessment Tool!http://www.mathblogging.org/post/12034620150529T23:45:1504:00Kyle PearceAnother post from Tap Into Teen Minds. Enjoy!<br />
Knowledgehook's Gameshow Beta Tool is a FREE Gamified Online Assessment Tool that can do what Socrative and Kahoot do, but offering much more!
The post Check Out Knowledgehook’s FREE Gameshow Assessment Tool! appeared first on Tap Into Teen Minds.Boy: I want to be a derivative so I can be tangent to your curves ;)http://www.mathblogging.org/post/12034420150529T22:35:5204:00UnknownBoy: I want to be a derivative so I can be tangent to your curves ;)<br />
Girl: I'm the Weierstrass function.Data “were destroyed due to privacy/confidentiality requirements,” says coauthor of retracted gay canvassing studyhttp://www.mathblogging.org/post/12034520150529T21:54:1104:00Ivan OranskyAs promised, Michael LaCour, the coauthor of the nowretracted Science paper on gay canvassing, has posted a detailed response to the allegations against him. In the 23page document — available here — LaCour claims to introduce evidence uncovering discrepancies between the timeline of events presented in Broockman et al. (2015) and the actual timeline of […]
The post Data “were destroyed due to privacy/confidentiality requirements,” says coauthor of retracted
[…]#AskDontTell: Special Segments in Triangleshttp://www.mathblogging.org/post/12034320150529T21:13:1804:00jwilson828I have been invited to write a few posts for NCTM’s Mathematics Teacher Blog: Joy and Inspiration in the Mathematics Classroom. You can read my first post here. While you’re there, be sure to catch up on any other posts you haven’t read. There are some great ones by Matt Enlow, Chris Harrow, and Kathy Erickson. […]curiosamathematica:
A variation of the more famous Mandelbrot...http://www.mathblogging.org/post/12034120150529T21:00:2804:00Unknown<br/> <br/><br/> <br/>curiosamathematica:
A variation of the more famous Mandelbrot fractal equations results in the equally beautiful burning ship fractal.
Holy shit this is creepy.My First Kindle Book is Uploaded and Processinghttp://www.mathblogging.org/post/12034220150529T20:47:0004:00(x, why?)Urged on by colleagues and bolstered by the number of hits I'm getting for all of my Regents exam blog posts in these days leading up to the next round of testing, I decided to collect the Algebra 1 (Common Core) tests together under in one volume, along with my answers and explanations. It's a first try, and it may not go as well as I would have liked. I will be honest: I pushed this as hard and fast as I could, while still taking time to review it for errors. However, I had a deadline: the
[…]mathani:
When the equilateral triangle and the deltoids on top...http://www.mathblogging.org/post/12034020150529T20:08:2004:00Unknown<br/><br/>mathani:
When the equilateral triangle and the deltoids on top of it have the same height, the ratio of their areas is 1 : 3 : 5 : 7 : 9.
What if the shapes telescope so that their areas are the same. What is the ratio of their heights then?[SBG] Reexamining Classroom Assessmenthttp://www.mathblogging.org/post/12033920150529T19:35:5604:00jnewman85The past two years I’ve used standards based grading (SBG). Last year I did a drastic overhaul. At the end of this year (when I had time again!) I started rereading many of the blogs that originally got me onto … Continue reading →Celebrating the 201415 School Year With Animotohttp://www.mathblogging.org/post/12033720150529T19:29:2104:00Cathy YencaI shared this video with students and parents, with shoutouts on Twitter to many featured digital tools and resources that have become a regular part of my practice. Thanks to every one of these tools, and the folks that keep … Continue reading →On This Day in Math  May 30http://www.mathblogging.org/post/12033820150529T19:00:0004:00Pat Ballew<br />The best review of arithmetic consists in the study of algebra.~Florian Cajori<br />The 150th day of the year; 150 is the largest gap between consecutive twin prime pairs less than a thousand. It occurs between {659, 661} and {809, 811}. *Prime Curios<br /><br />A Poly divisible number is an ndigit number so that for the first digit is divisible by one, the first two digits are divisible by two, the first three digits are divisible by three, etc up to n. There are 150 threedigit poly divisible numbers. […]A statistician walks into a grocery store... repeatedlyhttp://www.mathblogging.org/post/12033620150529T18:46:0004:00Mark<br /><br /><br />Things have gotten busy over at the food blog. The plan was always to go hot and heavy for a month or two. With almost one hundred posts either up or in the queue, I think we're getting there.<br /><br />The content is a mix of new pieces (like the recent one on chickenless chicken and black bean soup), reposts, links to recent news of interest...<br /><br /><br /> <br /><br /><br />And lots of historical pieces. Some, like this WWII film (highly recommended for anyone interested in the history of nutrition), focus on how we think about […]On an accelerated intro to proofs course: the good, the bad, the ugly, and the good againhttp://www.mathblogging.org/post/12033520150529T18:37:4004:00Adriana SalernoO, the bittersweet feeling of the end of the school year. So much happiness to be done with the exhausting cycle of teaching and grading, but so sad to see many students graduating and leaving your classes. These last five … Continue reading →Signori degli Anellihttp://www.mathblogging.org/post/12033220150529T18:15:2504:00xi'anSome rings and their stand from the walls and doors of the city of Siena.Filed under: Kids, pictures, Travel, Wines Tagged: Italia, medieval architecture, Siena, Tuscany, wall ringmagnitude of divisors proofhttp://www.mathblogging.org/post/12033320150529T18:09:2404:00Unknownnewest proofmagnitude of divisorshttp://www.mathblogging.org/post/12033420150529T17:58:1604:00Unknownnewest propositionFile types for mathrelated recreationhttp://www.mathblogging.org/post/12033120150529T17:33:0004:00Árpád FeketeWell, this blog has started to go in the games direction, and maybe this will continue to do so. For example, I've still not written about three or moreplayer games (which usually have some element of chance)... but maybe I'll never will.<br /><br />Still, I could write about more wisdom about the way of producing enjoyable twoplayer games... but maybe I'll never will.<br /><br />I could also show the improvement of my own collection of oneplayer logic toys and puzzles on photos, but I decided not to do so,
[…]choral counting language questionhttp://www.mathblogging.org/post/12032920150529T17:07:0004:00graceI was recently watching a choral counting video of a colleague teaching a small group of SpanishEnglish bilingual second graders (I'll share the video if I get permission, but in the meantime, just imagine some cute kids counting up by 10s starting at 64). Students count pretty fluently from 224 to 294, and there's just the tiniest pause before they all say 304. It's common for students to hesitate at points like this where numbers "cross over" the hundreds (is there better language to […]Ένας καθ' έξιν ιδιαιτεράς και ο μεγαλύτερος καθηγητής μαθηματικών όλων των εποχών Κάρλ Βάιερστρας!!http://www.mathblogging.org/post/12033020150529T16:44:0004:00Αθανάσιος Δρούγας <br />
[…]John F. Nash, Jr. , In Memoriamhttp://www.mathblogging.org/post/12032820150529T16:30:1104:00Wolfram Blog TeamThis past week, on May 23, 2015, the much loved and respected John F. Nash Jr., along with his wife, Alicia Nash, passed away in a tragic car accident while returning home from his receipt of the 2015 Abel Prize for his work in partial differential equations. The Nobel winner and his wife were the [...]Mowing: Estimation 180 Problemhttp://www.mathblogging.org/post/12032720150529T15:59:5004:00banderson02How many trips does it take to mow this lawn?   It is half a city block which measures 330′ x 165′. My mower deck is 48″. 165′ x 12″ = 1,980″ 1,980″ / 48″ = 41.25 It takes just over 41 mower decks to cut lawn. Depending on the student, a trip will include […]Constantinehttp://www.mathblogging.org/post/12032420150529T15:44:0004:00Vlad AlexeevScreenshots from Constantine TV series (season 1, episode 1)
http://impossible.info/english/art/films/constantine.html
least common multiple proofhttp://www.mathblogging.org/post/12032620150529T15:38:0804:00Unknownnewest proofAP Stats projectshttp://www.mathblogging.org/post/12031220150529T15:22:5304:00GlennWow, it has been a while since I posted anything, and I need to share a ton of things I have done. I predict that I will post a lot in the next several weeks. The school year is winding down, but my learners are ramping up. Grad school is down for the summer (with [...]4+1 Interview: Victor Pierceyhttp://www.mathblogging.org/post/12031620150529T15:19:5204:00Robert TalbertVictor Piercey of Ferris State University shares his thoughts and experiences on inquirybased learning in mathematics and what he and his students have learned through the use of IBL.Nähe & Distanz zu Schülernhttp://www.mathblogging.org/post/12032520150529T15:16:5304:00JanMartin KlingeVor einigen Tagen beschrieb Arne Ulbricht in der SPIEGELOnline Sparte, er entspräche in seinem Berufsbild dem Kumpeltyp und würde zuweilen mit der fehlenden Distanz zu den Schülern kämpfen.  Als Schüler lag ich einer EnglischReferendarin zu Füßen. Alle Jungs taten das.  Die Frage von Nähe und Distanz zu den Schülern – … Continue reading → On Uncertainty Quantification of Lithiumion Batterieshttp://www.mathblogging.org/post/12031120150529T15:13:0004:00IgorForget devising the exact location of atoms, people, computing unimaginable quantum mechanical probability distributions, what if compressive sensing enabled us to figure out how to extend the lifetime of our smartphone batteries ? This is what this uncertainty quantification study using compressive sensing tries to do. <br />Figure from this tweet.<br />On Uncertainty Quantification of Lithiumion Batteries by Mohammad Hadigol, Kurt Maute, Alireza Doostan <br />In this work, a stochastic, physicsbased model
[…]Il contratto per i lavori di costruzione di Auschwitz IIIhttp://www.mathblogging.org/post/12031520150529T14:58:0004:00Marco Fulvio Barozzi"Già abbiamo una certa idea della topografia del Lager; questo nostro Lager è un quadrato di circa seicento metri di lato, circondato da due reticolati di filo spinato, il più interno dei quali è percorso da corrente ad alta tensione. È costituito da sessanta baracche in legno, che qui chiamano Blocks, di cui una decina in costruzione; a queste vanno aggiunti il corpo delle cucine, che è in muratura; una fattoria sperimentale, gestita da un distaccamento di Häftlinge [= prigionieri,
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