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Posts

November 28, 2014

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5:08 PM | Sky Dive Trampoline: Real or Fake?
It has been a while since I’ve posted an additional installment to my “Real or Fake” Collection, but when I see videos like this, I just wonder what everyone else sees when they watch it. So, a man jumps out of a plane at several thousand feet with no parachute and slips through a 3 […]
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3:59 PM | Twitter's favourite fictional mathematicians
Twitter's favourite fictional mathematicians: Katie Steckles: In an idle moment of wondering, I asked a simple question on Twitter: What’s everyone’s favourite fictional mathematician? The response was overwhelming. Here’s a guide to the non-existent number crunchers you should know about, and some you probably already do. [source: mme rss]
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1:42 PM | The last 4 digits of Graham’s number
In the spring we had a lot of fun talking about Graham’s number. If you haven’t seen anything about Ggraham’s number before, you might enjoy checking out that prior blog post: An Attempt to explain Graham’s number to kids Also definitely check out the excellent series on Graham’s number that Numberphile did with Ron Graham!…
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10:39 AM | A General Proof of “The Theorem Wu”
Originally posted on Math Online Tom Circle:“The Theorem Wu” as submitted by Mr. William Wu on the public Math Research Papers site viXra (dated 19-Nov-2014) can be further generalized as follows : The Theorem Wu (General Case) Prove that:…
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8:09 AM | Video Error Analysis (Anti-Khan style)
Something I tweeted this week:@TUSDconnect HS Alg. class doing error analysis w/ teacher-made videos: making predictions, discussion, corrections. pic.twitter.com/9Tlpd6rLmP— Andrew Stadel (@mr_stadel) November 24, 2014Crystal (colleague) and Lynda (fellow) wanted to know more about this. So here's the story:The previous week, I met with one of my high school fellows who teaches Algebra to freshman. As with all my fellows, it's been an extreme pleasure […]
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6:48 AM | Time-Lapse
The last day of classes before Thanksgiving break, I set up my iPhone in an attempt to record some time-lapse footage in each of my classes.  Since middle-schoolers can smell a camera a mile away, there was nothing secretive about … Continue reading →
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6:39 AM | IntMath Newsletter: Vectors activity, GeoGebra 5
In this Newsletter: 1. Math in cross-wind landing vectors applet 2. GeoGebra 5 now with 3-D graphs 3. Math puzzles 4. Final thought - thank you The post IntMath Newsletter: Vectors activity, GeoGebra 5 appeared first on squareCircleZ. No related posts.
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5:15 AM | GeoGebra now with 3D graphs
GeoGebra's latest version offers 3D graphs and output that can be viewed on tablet devices. Here's a quick overview. The post GeoGebra now with 3D graphs appeared first on squareCircleZ. Related posts: Math in cross-wind landing vectors applet Here we look at some of the math behind... How to code JSXGraph axes, ticks and grids Trying to code JSXGraph so the axes and grid... Updated Graphs of tan, cot, sec and csc The updated applets on the Graphs of tan, cot,...
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3:20 AM | 54th Annual Northwest Math Conference: Scaling New Heights
54th Annual Northwest Math Conference: Scaling New Heights: Registration is now underway for the 54th Annual Northwest Math Conference: Scaling New Heights, which runs October 22-24, 2015 in Whistler, BC. See you there.
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3:17 AM | The New Way to Save Money: Playing the Lottery
The New Way to Save Money: Playing the Lottery: Amos Zeeberg: But some lottery players have found a way to get the thrill of gambling while also making the prudent choice to save a chunk of each paycheck. This is thanks to “prize-linked savings accounts”—each time an account-holder deposits a certain amount, they get a ticket for a raffle that includes cash prizes of various amounts. […] [source: mme rss]
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2:47 AM | More Cartoons on Kids, Adults, and Technology
Originally posted on Larry Cuban on School Reform and Classroom Practice:After nearly two years of once-monthly cartoons, readers and friends (and, yes, even family) send me their favorites. The eternal struggle of adjusting to each new technology gives cartoonists…
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1:00 AM | Good Maths Teachers…
I am very happy to announce that on Monday Dec 1st I’ll be asking someone else for his thoughts on Mathematics education – Simon Singh, whose book ‘The Simpsons and Their Mathematical Secrets’ was published in paperback recently (and is a … Continue reading →
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12:34 AM | IXL: Piattaforma Educativa Per La Matematica, Dall'Età Prescolare Alla Secondaria Di 2° Grado
In rete, sono presenti numerose risorse dedicate alla Matematica. Tra queste si distingue IXL, una piattaforma educativa americana che offre ottimi contenuti adatti alle esigenze degli studenti, dall'età prescolare alla Secondaria di 2° grado!La piattaforma offre Maths skill (abilità matematiche), continuamente implementate ed arricchite, fruibili online. Qui la mappa dell'offerta, distribuita in quattordici tappe progressive, dalle Preschool skills (abilità in età prescolare) […]
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12:26 AM | Week 16
Bereken exact de oppervlakte van de halve cirkel. Oplossing week 16
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12:00 AM | On This Day in Math - November 28
Newton is, of course, the greatest of all Cambridge professors; he also happens to be the greatest disaster that ever befell not merely Cambridge mathematics in particular, but British mathematical science as a whole.~Leonard RothThe 332nd day of the year; 332 is the number of ways to partition 47 into non-zero triangular numbers.  (36 + 10 + 1 would be one) The sum of the first 332 primes is a prime.EVENTSIn 2348 BC, a supposed comet under divine guidance passed near Earth, causing […]

November 27, 2014

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4:45 PM | Enid Blyton–Relikt vergangener Zeiten.
Nachdem wir die SAMS Bücher durchgelesen haben, versuche ich Carolina für Enid Blyton zu begeistern. Was habe ich ihre Bücher als Kind verschlungen. Fünf Freunde. Geheimnis um. Rätsel um. Die Schwarze Sieben. Sogar Hanni und Nanni habe ich gelesen.Und immer ging es um kluge Kinder, die Verbrechen lösen und Geheimnissen … Continue reading →
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2:53 PM | Graphic design & Fashion degree Programmes
To all Singaporean readers and parents, We are proud to recommend some excellent Graphic Design and Fashion Degree Programmes, by First Media Design School. The degree is being conferred by the University of the West of England, Bristol. For those who … Continue reading →
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2:46 PM | Assessment - continuing the conversation
I like thinking about assessment.  It certainly isn't straight forward, but I find it interesting.  In fact, I find it so interesting and important that I have been pursuing graduate studies on this topic.  Dylan Wiliam (2013) has suggested that assessment is the "central process in effective instruction...[and] the bridge between teaching and learning" (p.15), and I agree with this sentiment.  Usually even the people who strongly disagree with this statement, begin to agree […]
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2:36 PM | Imaginary Erdős Number enjoy!
Imaginary Erdős Number enjoy!
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2:20 PM | And Be Thankful
[Feature photo (above) by alicepopkorn via Flickr (CC BY 2.0).] Therefore, as God’s chosen people, holy and dearly loved, clothe yourselves with compassion, kindness, humility, gentleness and patience. Bear with each other and forgive whatever grievances you may have against … Continue reading →
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2:12 PM | Things Teenagers Say Volume 22
Happy Thanksgiving!  I know I have so much to be thankful for this year.  One thing I'm thankful for is that not a day goes by where my students don't make me laugh.  So, I think it's only fitting to share some things teenagers say today.  :) Previous Volumes:Volume 1 | Volume 2 | Volume 3 | Volume 4 | Volume 5  Volume 6 | Volume 7 | Volume 8 | Volume 9 | Volume 10Volume […]
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2:00 PM | A Zometool Thanksgiving
While cleaning up after a successful group build, a colleague and some students had fun making a little Thanksgiving tribute in Zometool.  
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1:57 PM | Proof in math
There are been three recent pieces about mathematical proof that have caught my attention in the last couple of months: (1) Most recently Keith Devlin’s piece here: (2) Evelyn Lamb’s coverage of Leslie Lamport’s talk at the Heidelberg Laureate Forum (including, importantly, a link to a paper in which Lamport takes a critical look at…
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1:28 PM | Carte mancanti
Ecco il nuovo rompicapo della settimana, dedicato agli amanti delle carte da gioco.  Nel mazzo di carte che ho in mano mancano alcune carte.Se le distribuisco in numero uguale tra 9 persone, mi avanzano 2 carte.Se le distribuisco in numero uguale tra 4 persone, mi avanzano 3 carte.Se le distribuisco in numero uguale tra 7 persone, me ne avanzano 5.In origine, il mazzo era di 52 carte. Quante carte mancano ora?
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12:29 PM | Math in cross-wind landing vectors applet
Here we look at some of the math behind the cross wind landing applet in the section on adding 2D vectors. The post Math in cross-wind landing vectors applet appeared first on squareCircleZ. Related posts: How to code JSXGraph axes, ticks and grids Trying to code JSXGraph so the axes and grid... Updated Graphs of tan, cot, sec and csc The updated applets on the Graphs of tan, cot,... New Riemann Sums applet Here's some background on the new Riemann Sums applet...
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11:02 AM | Poesie quadrate
Una poesia quadrata è una particolare composizione in cui il numero delle sillabe (o di parole) per ogni verso è uguale al numero dei versi, per cui la sua struttura risulta essere una griglia quadrata, come in questo esempio che traggo dalla matematica e poetessa americana JoAnne Growney e che ho adattato alla nostra lingua:When lovers leave, avoid laments. Grab a cactus-- new pain forgets.Se ti lascia,via la pena:sfrega cactuscon la schiena.La poesia quadrata più semplice (1 […]
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10:24 AM | Fermat’s Little Theorem Co-prime Condition
Originally posted on Math Online Tom Circle:It is confusing for students regarding the two forms of the Fermat’s Little Theorem (which is the generalization of the ancient Chinese Remainder Theorem): General: For any number a We get, If (a,…
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7:06 AM | Soluciones a los problemas de cálculo (IV)
He preparado un documento PDF con soluciones a problemas seleccionados del tema 4 que se puede descargar de este enlace.
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6:33 AM | What Maths do Engineers Learn: Singapore Engineering Maths (University) Tuition
Some of the Maths topics that Engineering Students need to learn are: Fourier Series Laplace Transform Total and Partial Differentiation Line Integral All the above topics are rather challenging and deep. Fortunately, for most engineering students, application of the theorems … Continue reading →
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6:15 AM | Laatste toevoegingen
Ik was het niet van plan maar ik heb toch maar weer 's wat dingen toegevoegd:Stelsels oplossenHet oplossen van ongelijkhedenNovember 2014
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