Mathblogging.orgRecent Postshttp://www.mathblogging.org/scripts/feed.php2014-08-02T00:29:18-04:00No copyright asserted over individual posts; see original posts for copyright and/or licensing.Mathblogging.org Atom serializerT-chart for Polyhedrahttp://www.mathblogging.org/post/944102014-08-01T17:25:00-04:00Bruce FerringtonOur exploration of shape moved into a new dimension today - the third dimension.<br /><br />Yes - we were looking at 3D objects.<br /><br />A great way to consolidate concepts is to construct a t-chart to highlight similarities and differences. This is what we did.<br /><br />We took out the 3D models and, working in small groups, looked at the features and properties of the object in front of us. We took photos on our iPads, labelled them and discussed, faces, edges and vertices.<br /><br />Once we were happy with this, we went
[…]Office of Science Graduate Student Research program accepting applicationshttp://www.mathblogging.org/post/944082014-08-01T17:00:56-04:00siampaoFrom the U.S. Department of Energy, Office of Science: The Department of Energy’s (DOE) Office of Science is pleased to announce that the Office of Science Graduate Student Research (SCGSR) program is now accepting applications for the 2014 solicitation. Applications are due 5:00pm ET on Wednesday September 24, 2014. The SCGSR program supports supplemental awards to [...]Distance to the Horizon on the Fourth of Julyhttp://www.mathblogging.org/post/944142014-08-01T16:50:00-04:00adminI had the luck to celebrate the past 4th of July with our friends in their newly acquired home just above the marina in Atlantic Highlands, NJ. The view from their backyard was absolutely breathtaking. The ambient light that appeared to blur the background made the view even more enchanting. Here is a map that [...]Distance to the Horizon on the Fourth of July is a post from: CTK InsightsScheduled rate increase … Saturday, August 9, 2014http://www.mathblogging.org/post/943862014-08-01T16:00:02-04:00LeslieBeat the rush and save some dough. Next Saturday our individual and department rates will slightly increase. Effective Saturday, August 9, 2014 Individual memberships will be $18.00 Department and district memberships will become; 3 – 5 members at $15.00 each…Read more →A Sloppy Computerized Testhttp://www.mathblogging.org/post/944062014-08-01T15:51:00-04:00Sue VanHattumMy college is running a program called Math Jam for two weeks before the semester begins, and it sounds fabulous. I'll be teaching it for the first time, starting on Monday. We use MyMathLab, and our director said students in prior years (who loved Math Jam) found the program helpful. So I will use it with my students next week, along with lots of other, more interesting mathematical explorations.<br /><br />I checked out the first test just now, and got below 90% in a Beginning Algebra, or perhaps […]Ignoring The Meaning of "Feedback"http://www.mathblogging.org/post/944092014-08-01T15:51:00-04:00Michael PershanDefining "feedback" isn't very much fun.<br />One of the things that I want to work on next year is improving the feedback that I give my kids on their work. I know that I tend to give kids too little feedback over the course of the year. I also know why this happens: because I think that most teacher feedback is pretty lame, coming either in the form of right/wrong or as running comments about the correctness of the procedure.*<br /><br />* You know what I'm talking about, right? "Nice job subtracting the
[…]This Much I Care by Skaters
(skip to 27”)http://www.mathblogging.org/post/943822014-08-01T15:30:05-04:00Unknown<br/><br/>This Much I Care by Skaters
(skip to 27”)Algebra 2 Functions Posterhttp://www.mathblogging.org/post/943802014-08-01T14:59:00-04:00Elissa MillerAfter our TMC14 Algebra 2 session, Brooke and I decided to reorder our pacing guide together in a way that was similar to Glenn's.<br /><br />Here is a poster of the functions in the order we plan to teach them.<br /><br /><br />The idea is to start the course with asking what they notice and wonder about the equations. Then as we study that equation, we have a giant You Are Here arrow.<br /><br /><br />Hopefully the students will see more connections and realize that only the pictures are changing.<br /><br />Here is the powerpoint if you want to […]Latest Ebola Outbreak Is by Far the Deadliesthttp://www.mathblogging.org/post/944072014-08-01T14:45:57-04:00Erin McCarthyThe deadly Ebola outbreak in West Africa looks is believed to be the worst since the disease emerged in 1976, raising concerns for health officials and local governments.
Only space for $\exists !$ topos bookhttp://www.mathblogging.org/post/943842014-08-01T14:30:42-04:00lievenFor the first time in 15 years both PD1 & PD2 will join us on vacation. Space is crammed, so drastic decisions are required… ThePartner and I travel down south 4 or 5 times a year and we usually take along a huge pile of books. Not that we intend to read them all, but ...New Questions at #TMC14http://www.mathblogging.org/post/943792014-08-01T14:20:00-04:00Malke RosenfeldTry as I might to focus this post on other things, I think I first need to address the fact that up until TMC14 I considered myself a math outsider. I've been working at the intersection of math, dance and learning for a decade now. Quite truthfully it's been a lonely road. My initial collaboration with an elementary math specialist was the foundation and the frame for Math in Your Feet, but I essentially was in charge of every other detail. For over six years I worked in individual […]Moss Egg Drawing Using GeoGebrahttp://www.mathblogging.org/post/943812014-08-01T14:14:04-04:00Bill LombardHere’s a Moss Egg drawing Using GeoGebra. The idea came from a book by Dixon, Robert, called Mathographics. There’s an online source by Freyja Hreinsdóttir called Euclidean Eggs, University of Iceland, Lifelong Learning Programme. Here’s a link to her version which was very helpful when creating this drawing. She also has other styles of eggs for [...]Statshot: Screentime, Self Image, and Nascarhttp://www.mathblogging.org/post/943782014-08-01T14:08:46-04:00David GoldenbergTV is losing primacy as the go-to entertainment hub for Americans, especially among millennials. Both sexes feel worse about their looks during middle age. And Nascar’s Jeff Gordon becomes the most decorated driver at the Brickyard 400 Speedway.
Headbands (Hedbandz) for the classroomhttp://www.mathblogging.org/post/943852014-08-01T14:08:00-04:00Kathryn...on a Friday! <br /> <br />It's kind of funny to me that "Hedbandz" ever became a game that people pay for since I remember playing it years ago with a Post-it stuck to each player's forehead. I suppose the lack of set-up time and ability to reuse the cards gives it some worth.<br /><br />If you're not familiar with the game, each player has a mystery card that they're trying to guess by asking the other players yes/no questions. You win by guessing your card correctly with the least number of […]Echoing and maybe amplifying a point in Keith Devlin’s latest articlehttp://www.mathblogging.org/post/943742014-08-01T13:48:09-04:00mjlawlerToday (August 1, 2014) Keith Devlin published a nice article touching on both mathematical ideas and math education: Most Math Problems Do Not Have a Unique Right Answer If you have any interest at all in math or math education … Continue reading →"The entrepreneurial class, during its rule of scarce one hundred years, has created more massive and..."http://www.mathblogging.org/post/943832014-08-01T13:42:00-04:00Unknown“The entrepreneurial class, during its rule of scarce one hundred years, has created more massive and more colossal productive forces than have all preceding generations together. Subjection of Nature’s forces to man, machinery, application of chemistry to industry and agriculture, … — what earlier century had even a presentiment [of] such productive forces…?
The need of a constantly expanding market for its products chases businesspeople over the entire surface of the globe. They
[…]Math people moving aroundhttp://www.mathblogging.org/post/943772014-08-01T13:26:32-04:00valuevarIn the June 2014 issue of the Newsletter of the European Mathematical Society,there is an article (by Martin Andler, from Versailles) on the invited speakers at this year’s ICM, and, in particular, on geographical shifts in their career. Besides offering … Continue reading →Renormalization and Super Yang Mills Theoryhttp://www.mathblogging.org/post/943722014-08-01T13:19:23-04:00edwardfhughesIt’s well known that super Yang-Mills theory is perturbatively finite. This means that there’s no need to introduce a regulating cutoff to get sensible answers for scattering amplitude computations. In particular the and functions for the theory vanish. Recall that the function tells us about the anomalous dimensions of elementary fields. More specifically, if is […]Rutherford scatteringhttp://www.mathblogging.org/post/943752014-08-01T13:09:39-04:00growescienceReferences: Griffiths, David J. (2005), Introduction to Quantum Mechanics, 2nd Edition; Pearson Education – Problem 11.1. Thornton, Stephen T. & Marion, Jerry B. (2004), Classical Dynamics of Particles and Systems, 5th edition; Thomson Brooks/Cole – Chapters 8 and 9. As a prelude to studying quantum scattering, we’ll begin by looking at a classical scattering problem. […]L'imprevedibile viaggio di Harold Fryhttp://www.mathblogging.org/post/943732014-08-01T12:42:15-04:00UnknownQuando lessi sul web la trama di questo libro mi incuriosì molto. Un giorno, mentre perdevo tempo in libreria, lo vidi (anche scontato) e lo comprai. Dopo un po' di mesi che rimase nella libreria di casa in attesa di essere aperto mi decisi a leggerlo, aspettandomi qualcosa di eclatante.<br />La storia parla di Harold, un uomo pensionato, che un giorno riceve una lettera da una sua amica (ed ex collega) in cui gli dice che sta per morire. Lui scrive una lettera di risposta ed esce ad imbucarla, ma […]Twitter Math Camp!http://www.mathblogging.org/post/943672014-08-01T12:28:00-04:00John GoldenEdmund Harriss' logo explainedThe thing I was most afraid of about Twitter Math Camp was that it could not possibly meet my outrageous expectations. I had jealously not been able to go the last two years, and was so happy to go this year, meet so many teachers whose work I love, and get to experience this community that has become such a big part of my professional life, that there was no way it could measure up.<br /><br />But I was blown away.<br /><br />One of the benefits of this community is that we write and […]A short talk I gave this springhttp://www.mathblogging.org/post/943762014-08-01T12:23:10-04:00ChristopherThe constraints are these: Five minutes, 20 slides. They advance every 15 seconds whether you are ready or not. Here is my first stab at the genre, from this spring’s NCTM/NCSM conference in New Orleans. The others who presented that … Continue reading →underthesymmetree:
Fibonacci you crazy bastard….
As seen in the...http://www.mathblogging.org/post/943692014-08-01T12:12:47-04:00Unknown<br/> <br/><br/> <br/><br/> <br/><br/> <br/><br/> <br/>underthesymmetree:
Fibonacci you crazy bastard….
As seen in the solar system (by no ridiculous coincidence), Earth orbits the Sun 8 times in the same period that Venus orbits the Sun 13 times! Drawing a line between Earth & Venus every week results in a spectacular FIVE side symmetry!!
Lets bring up those Fibonacci numbers again: 1, 1, 2, 3, 5, 8, 13, 21, 34..
So if we imagine planets with Fibonacci orbits, do they create Fibonacci symmetries?!
You bet!! Depicted here is a:
2 sided
[…]Adam Kotsko provides helpful feedback to Derridahttp://www.mathblogging.org/post/943702014-08-01T11:58:18-04:00Jon CogburnThis is very funny. In the spirit of Derrida responding to Searle, I'll just go ahead and fully exerpt Kotsko's annotated version of the first two paragraphs of "Structure, Sign, and Play:" Perhaps [weasel-word!] something has occurred in the history of the concept of structure that could be called an...Legal Medical Marijuana Doesn’t Boost Teen Use, Study Findshttp://www.mathblogging.org/post/943682014-08-01T11:45:26-04:00Asma GhribiLegalizing medical marijuana doesn't lead to a rise in use among teens, according to a new study.
Summer Subbing, Old Schoolhttp://www.mathblogging.org/post/943652014-08-01T11:28:00-04:00(x, why?)(Click on the comic if you can't see the full image.)<br /> (C)Copyright 2014, C. Burke.Funny how they remember all the good times and what I great teacher I was ... but they're in summer school. Returning to the old school is more convenient, and I don't mind seeing the old faces. I just hope that that they're taking a higher level course. Or a different subject! <BR><br><br><br></br>
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January-July 2014: Seven Months of Reproducible Researchhttp://www.mathblogging.org/post/943572014-08-01T11:14:00-04:00IgorSummer generally allows for some downtime at which point I can update other pages such as the Reproducible Research ( implementations ) page, the Big Picture in Compressive Sensing or the Advanced Matrix Factorization Jungle page. Here are the implementations I will add shortly to these pages. They include all implementations listed here on the Nuit Blanche in Review starting January 2014 till yesterday's entry:<br />Compressive Sensing<br />Adaptive-Rate Compressive
[…]Wolfram Language and Mathematica Updated for the Raspberry Pihttp://www.mathblogging.org/post/943662014-08-01T11:02:51-04:00Arnoud BuzingEarlier this month we released Mathematica 10, a major update to Wolfram’s flagship desktop product. It contains over 700 new functions and improvements to just about every part of the system. Today I’m happy to announce an update for Mathematica and the Wolfram Language for the Raspberry Pi that brings those new features to the [...]Mathematically correct bagelhttp://www.mathblogging.org/post/943602014-08-01T10:50:19-04:00Nathan YauI don't know about you, but I like my bagel as two roughly cut, congruent linked halves. I usually use …I rompicapi di Alice: La curva di Carrollhttp://www.mathblogging.org/post/943612014-08-01T10:46:00-04:00Unknown