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Posts

July 31, 2014

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1:34 PM | The health policy innovation center: how best to move from pilot studies to large-scale practice?
A colleague pointed me to this news article regarding evaluation of new health plans: The Affordable Care Act would fund a new research outfit evocatively named the Innovation Center to discover how to most effectively deliver health care, with $10 billion to spend over a decade. But now that the center has gotten started, many […] The post The health policy innovation center: how best to move from pilot studies to large-scale practice? appeared first on Statistical Modeling, Causal […]
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1:32 PM | Tilings- Open Middle Problem
What is the least amount of Tranformations needed to Tile the plane? List them. Can the tiling be done with only one type of Transformation?  If so, identify which type and how many times you need to perform the transformation to tile the plane.   Alternate image for the same problem:  Filed under: Uncategorized
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1:30 PM | The Best Universities in 35 Countries
Originally posted on Math Online Tom Circle:http://www.businessinsider.sg/the-best-universities-in-every-country-2014-7/#.U9pB58kZ7qA Australia: University of Sydney Canada: University of Toronto China: 北京大学 Japan: Tokyo University Hong Kong: 香港大学 France:  Ecole Normale Supérieure,  Paris India: Indian Institute of Technology, Delhi Taiwan: 国立台湾大学 UK: Cambridge University…
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1:30 PM | UT-Southwestern cancer research group notches ninth retraction
A research team at the University of Texas-Southwestern that has retracted eight papers for image manipulation has retracted another, this one in Lung Cancer. Here’s the notice for “Aberrant methylation of Reprimo in lung cancer,” published by Adi Gazdar’s group: This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article […]
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1:29 PM | Month in Review – July 2014
It’s the end of the month again! Let us go back to what we have learned this month. We have a few posts this month but I think they are all interesting both for teachers and students. Month in Review – July 2014 3 Rules to Spark Learning: A Must Watch for All Teachers is an […] Math and Multimedia - School math, multimedia, and technology tutorials.
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1:09 PM | Top 10 Forbes American Colleges
Originally posted on Math Online Tom Circle:http://finance.yahoo.com/news/harvard-only-7th-best-school-170720666.html
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1:00 PM | Regents Recap — June 2014 — Which Graph is Steeper?
Here is another installment in my series reviewing the NY State Regents exams in mathematics. The following question appeared on the June, 2014 Algebra 2 / Trig exam. To start, steeper is not a well-defined term, not in an Algebra 2 / Trig class, anyway.  I’m not against using the word in everyday mathematics conversations, but I’m not […]
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1:00 PM | Common Core is for the common folk*
If you spend much time following the education reform debate, particularly on the counter-reformation side, you soon notice that a lot of fairly major stories get a lot of play on the state and local level but are largely ignored on the national level, at least by publications like the New York Times.One of the recurring themes in these stories is the idea of education reform for all but the elite, which, given the make-up of the movement, often comes down to reformers exempting themselves from […]
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12:54 PM | Discrete dynamische modellen
voorkennislineaire differentievergelijkingen van de eerste ordelogistische groeistelsels differentievergelijkingenlineaire differentievergelijkingen van de tweede ordedynamische modellen met CoachOp wat 'uitwerkingen' en 'computerdingen' na is het laatste hoofdstuk VWO 4 wiskunde D voorlopig klaar. Ik ga nog wel iets bedenken voor de computerprogramma's. Volgend jaar maar weer 's verder kijken.
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12:52 PM | Concentric Circles Puzzle
This morning I happened across this tweet from David Marain (@dmarain) As you may know, I have a penchant for puzzles, and find it hard to leave them unsolved, so I thought about it and came up with an answer. I thought I would jot down my thought process here. For those who can’t see […]
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12:39 PM | Math and Kentucky Program Reviews (Art, Writing, PLCS)
In Kentucky, we have Program Reviews for Arts/Humanities,  Writing a nd Practical Living / Career Studies (PLCS).  My interpretation… the idea is to ensure all teachers across disciplines are integrating concepts, strategies into their classrooms on a regular basis in efforts to make connections with student interests and enhance their learning experiences.  I have used […]
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12:30 PM | 7/31/14
7 - 3 = 1 * 1 * 4 Also: 7 = 3 + 1 + 1 + √4
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12:30 PM | Self-defeating comment spam of the day
This is probably not the best product to pitch if you have to rely on translation software. From the just possibly pseudonymous Lerry G Leone Leone:This usefulness of our copy writers makes it possible for us to make available along with produce many products and services along with different types connected with forms. ________  features Tell us from in this article We have now chosen accomplished copy writers from just about all fields of study, and they are efficient at finishing […]
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12:18 PM | missing slide
I realised too late I should have added this slide to my talk in Bangalore, to thank the Indian participants and organisers of the IFCAM workshop: நன்றி    ಧನ್ಯವಾದ   ਤੁਹਾਡਾ ਧੰਨਵਾਦ धन्यवाद  આભાર  আপনাকে   ধন্যবাদ अनुगुरिहीतोसुमि ధన్యవాదాలు  آپ کا شکریہFiled under: pictures, Statistics, Travel, University life Tagged: alphabets, India […]
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11:45 AM | Angle Hunt with iPads
We've had our iPads for 6 months now and confidence was high. Time to let the little angels run free and see what they could produce...The Angle HuntOur activity was to use our iPads to photograph different types of angles that we could find in the playgroundTHENto put the picture together in some form of presentation. This bit was left open-ended - I knew the kids were familiar with a variety of different aps such as Explain Everything and Educreation. I wanted to see what they would come up […]
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11:30 AM | Why Did this Image Cause a Traffic Spike on TomRoelandts.com?
At first sight, this image has nothing to do with my site. I have not posted it or mentioned it. The picture is real, by the way, it is not “Photoshopped”. It is from TV coverage of the Scottish Open golf tournament in Aberdeen, and the effect is caused by atmospheric refraction. But the details of… Tags: Stuff
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11:00 AM | July 31, 2014
Solution at the bottom of this page.Like this problem? Try our Contest Problem Book series!Curriculum Inspirations is a collection of resources for Middle and High School Math Teachers that demonstrate practical ways to engage students in the lively exploration of mathematics and mathematical thinking using problems from America’s longest-running and most successful mathematics competition. Developed by James Tanton, these resources include Ten Problem Solving Strategy Essays and […]
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10:52 AM | “Math Play” Presentation for Early Childhood teachers
Even though my teaching experiences are all middle and high school, as a PreSchool-12 math chair and father of 3 young children, I’m intensely interested in how math is presented to very young people. As a result, I’m presenting ideas … Continue reading →
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10:46 AM | La nuova Germania mi fa paura
In un suo libro recente un personaggio dice «quello che la Germania non ha fatto con i panzer, lo sta facendo attraverso l’economia». È anche la sua opinione? «È un paradosso. Ma è indiscutibile che la Germania stia schiacciando gli altri Paesi europei. Sono sempre più convinto che nel 1989 si sia verificato uno slittamento di libertà e di dipendenze. Oggi godiamo della libertà politica, di stampa, della libertà di viaggiare, ma tutto è ridotto a una dimensione economicistica. […]
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9:02 AM | Swift: string formatting (following Erica Sadun)
Erica Sadun posted some very nice code for extending Swift to create strings from string formats and arbitrary arguments. Below are some examples which make use of her code. // Execute this code is a Swift playground: look for // output in assistant editor import UIKit // The next two functions are from ericasadun.com func […]
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8:53 AM | Holy mathematics
Image © Tim Jones. This beautiful image shows details of the ceiling of the Sagrada Familia basilica in Barcelona, illustrating architect Antoni Gaudí's love of mathematical design. © Tim Jones.read more
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7:58 AM | Sum and Difference of Two Cubes
Students taking A Maths (Additional Maths) in 2014 should watch this: It may come out in the exam! This is the newest addition to the new syllabus. Featured book: Practical Algebra: A Self-Teaching Guide, Second Edition    Filed under: a … Continue reading →
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7:45 AM | The father of all beamer talks
Who was the first mathematician to give a slide show talk? I don’t have the definite answer to this question, but would like to offer a strong candidate : Hermann Minkowski. Minkowski gave a talk “Zur Geometrie der Zahlen” (On the geometry of numbers) at the third ICM in 1904 in Heidelberg and even the ...
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7:11 AM | Network visualization game to understand how a disease spreads
Vax, a game by Ellsworth Campbell and Isaac Bromley, explores how a disease spreads through a network, starting with just …
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7:00 AM | 7289
7289 = 37 x 197.7289 and each of its two divisors include the digit 7 (A062676).7289 is 2929 in base 14.7289 has two representations as a sum of two squares: 7289 = 82 + 852 = 202 + 832.7289 is the hypotenuse of two primitive Pythagorean triples: 72892 = 13602 + 71612 = 33202 + 64892.7289 divides 1412 - 1.Source: OEIS
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6:30 AM | GreBsmo: Greedy Bilateral Sketch, Completion & Smoothing - implementation -
In CAI: Cable And Igor's Adventures in Matrix Factorization, Cable and I used the GoDec algorithm of Tianyi Zhou to play with several Youtube videos. There are all here. Kyle Kastner did a similar undertaking using Python and IPython. it is all here.Today, we have an even faster version of GoDecin GreBsmo as featured in Greedy Bilateral Sketch, Completion & Smoothing by Tianyi Zhou, Dacheng TaoRecovering a large low-rank matrix from highly corrupted, incomplete or sparse […]
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5:06 AM | we all crave the real stuff
I’m gonna let a couple of other people say the things I’ve been thinking about. “Learning how to be present with the big, scary openness of not-knowing is no small thing. That is why we zone out, check our phones a hundred times an hour, play video games, watch TV, assault-eat, numb out, zone out, distract […]
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5:00 AM | GdR ISIS: Acquisition/Echantillonnage comprimé : quelles réalisations/applications pratiques ?
One of my co-author, Laurent Daudet, asked me to features this French centered CfP (speakers do not need to be presenting in French). Here it is:Réunion du GdR ISISTitre : Acquisition/Echantillonnage comprimé : quelles réalisations/applications pratiques ?Dates : 2014-09-12Lieu : Télécom ParisTech, PARISNous vous rappelons que, afin de garantir l'accès de tous les inscrits aux salles de réunion, l'inscription aux réunions est gratuite mais […]
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4:06 AM | San Diego Conversions
I was in San Diego, California the past few days doing the whole San Diego Zoo and SeaWorld thing with the family. We had a great time, but that's not the point of the post. There were definitely a handful of opportunities to capture some math moments, but I've found it more important to contain myself (mathematically) when I'm with family and make the most of our time together. Here are the two things I captured and want to share.Number 1: We were waiting to board the Wild Arctic Ride […]
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3:30 AM | Wordle–Twordle & interesting stuff
Ok, I am doing this quick post instead of the longer, more thoughtful #TMC14 posts. Sorry, but this is too interesting to let drop. @JustinAion had an idea to turn your twitter feed into a Wordle to see what it says about what you use Twitter for. Great! So I did it, and I wondered right […]
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