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Posts

March 28, 2015

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10:05 AM | Tricks and Tips 2: Sequences, Linear Graphs and Surds
I recently presented a workshop at the National Mathematics Teacher Conference (#mathsconf2015) entitled 'Tricks and Tips: Clever Methods for Explaining Mathematical Concepts'. This is the second in a series of posts summarising the content of that workshop for those who were unable to attend. The aim of my workshop was to encourage people to reflect on their subject knowledge and the
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9:40 AM | Interactive Fractals
Eleven interactive fractals in 2D and 3D (signup required)
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9:31 AM | Curves with Constant Width
via Mathematicus
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7:30 AM | Some Answers to Questions I Asks on March 21st
March 28th, 2015Pi Day was on March 14th, and I waited a week to see if anyone would […]
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6:00 AM | 28 Marzo 1928 - Buon Compleanno Alexander!
“Mi sembra che la biblioteca di questo rinomatissimo Istituto non sia poi così fornita di testi come uno si aspetterebbe…” “Qui i libri non li leggiamo: li scriviamo” Napalm. Parola strana, per una strana sostanza. Ma è stranezza compensata da un certa onestà implicita nel termine stesso: sembra inizialmente curioso, quasi perverso, trovare nel nome del [...]
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6:00 AM | La poursuite du lièvre par un chien
La poursuite du lièvre par un chien : quelques 'illustrations du problème des deux courriers au Moyen-Âge et au début du XVème siècle. - Histoire des Mathématiques / Piste bleue, featured
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4:36 AM | Kindergarten math placement test?
Someone asked me a question about kindergarten mathHello! Is there a placement test to see if a child is ready for 1A? We went over the kindergarten review and she did well with that, but I'd hate for her to get started and then discouraged. Is there a kindergarten curriculum that you'd recommend? My goal has been to not do anything formal for kindergarten math, but she wants it and is ready. Thanks!That is indeed a valid concern. Sometimes children start with Math Mammoth 1-A and there's one […]
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3:14 AM | The Canadian who reinvented mathematics
The Canadian who reinvented mathematics: Sandro Contenta:Langlands, a Canadian, is one of the world’s great mathematicians. His universe is the outer limits of pure mathematics, a rarefied realm where abstract objects exist, infinity is corralled and symmetry reigns.
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2:28 AM | Pedagogical Praise for Mr. Math Teacher
The recent vernal equinox brings not only more sunshine to my day outside of my classroom, but to the time I spend within.  Shortly after setting my clocks back an hour, former students of mine started to descend upon our … Continue reading →
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12:59 AM | Compartmentalizing your life
These last five weeks I have been traveling every week while trying to juggle my teaching, research, and family responsibilities. Thankfully I have successfully fulfilled all my teaching and service responsibilities! Even if this meant almost no sleep, I was … Continue reading →
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12:00 AM | On This Day in Math - March 28
*George W. Hart, Sculpture `The introduction of the cipher 0 or the group concept was general nonsense too, and mathematics was more or less stagnating for thousands of years because nobody was around to take such childish steps ...'.in a letter in 1982 to Ronald Brown The 87th day of the year; the sum of the squares of the first four primes is 87. \(87 = 2^2 + 3^2 + 5^2 + 7^2 \) 87 = 3 * 29, \(87^2 + 3^2 + 29^2 and 87^2 - 3^2 - 29^2 \)are both primesAmong Australian cricket players, it […]

March 27, 2015

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11:15 PM | a most curious case of misaddressed mail
Today, I got two FedEx envelopes in the mail, both apparently from the same origin, namely UF Statistics department reimbursing my travel expenses. However, once both envelopes opened, I discovered that, while one was indeed containing my reimbursement cheque, the other one contained several huge cheques addressed to… a famous Nova Scotia fiddler, Natalie MacMaster, […]
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10:52 PM | Comic #22 — It’s Punny (take 1)
Click the image for a larger version
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10:48 PM | Alternative Issues
Today my year 13s started work on the masses of past papers I gave them as an easter present (the lucky people that they are). One of those papers was the Edexcel C3 paper from the January sitting. One of my students today asked for help on this question from said paper: He had managed […]
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9:47 PM | CUE 2015 Notes & Reflections
I just got back from three awesome days at the Annual CUE Conference in Palm Springs. Sessions I attended:Applying Best Practices in 1:1 (Cheryl Morris, Andrew Thomasson, Sam Patterson)Slide Deck (see for lots of student creation examples)Students have a digital portfolio on WeeblyAutocrat can let students fill out a form and be emailed a document; teacher is still owner (still not sure how this is better/easier than Doctopus; need to explore)Pixlr functions like photoshop (14.99/year for […]
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9:30 PM | infinity-imagined:This animation shows a human brain in...
infinity-imagined:This animation shows a human brain in cross-section.  A head was frozen in a block of ice, sectioned with a macrotome, and photographed repeatedly. 700 horizontal sections with a thickness of 174 microns were produced and imaged.  The animation starts near the top of the head and proceeds down towards the neck, then reverses and returns to the top.Images produced by the Visible Human Project, National Library of Medicine; http://vhnet.nlm.nih.gov/
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9:00 PM | Britney Spears taking maths lessons: Millionaire pop star wants to help her sons with homework
Britney Spears taking maths lessons: Millionaire pop star wants to help her sons with homework: Toyin Owoseje:After conquering the charts, pop superstar Britney Spears is now preparing to take on algebra.The 33-year-old Grammy winner, who is worth an estimated $130m (£87m), has revealed she has signed up for maths lessons so that she can help her sons with their homework.
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8:22 PM | Quantum gravity from quantum error-correcting codes?
The lessons we learned from the Ryu-Takayanagi formula, the firewall paradox and the ER=EPR conjecture have convinced us that quantum information theory can become a powerful tool to sharpen our understanding of various problems in high-energy physics. But, many of … Continue reading →
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7:57 PM | John Forbes Nash y Louis Nirenberg, premio Abel 2015
Los matemáticos John Forbes Nash (estadounidense, de 86 años) y Louis Nirenberg (canadiense, de 90 años) han sido galardonados con el Premio Abel 2015 por sus contribuciones al campo de las ecuaciones en derivadas parciales y sus aplicaciones al análisis geométrico. John Nash añade este premio al Premio Nobel de Economía (1994) y al Steele […]Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un […]
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7:52 PM | Vojtech Jarnik Competition 2015 – Problems Category 2
Problem 1. Let and be two matrices with real entries. Prove that provided all the inverses appearing on the left-hand side of the equality exist. Problem 2. Determine all pairs of positive integers satisfying the equation Problem 3. Determine the set of real values for which the following series converges, and find its sum: Problem […]
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7:44 PM | Wooden impossible triangle
Real sculpture of impossible triangle by mtairymd   http://im-possible.info/english/art/sculpture/mtairymd.html   Author - http://www.instructables.com/member/mtairymd/
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7:41 PM | Vojtech Jarnik Competition 2015 – Category 1 Problems
Problem 1. Let be differentiable on . Prove that there exists such that Problem 2. Consider the infinite chessboard whose rows and columns are indexed by positive integers. Is it possible to put a single positive rational number into each cell of the chessboard so that each positive rational number appears exactly once and the […]
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7:33 PM | The Abel Prize goes to John Nash & Louis Nirenberg
The Norwegian Academy of Sciences and Letters has announced that the Abel Prize for 2015 will go to American mathematicians John F. Nash, Jr. and Louis Nirenberg “for striking and seminal contributions to the theory of nonlinear partial differential equations and its applications to geometric analysis.” Read full details on the Abel Prize website. by
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7:29 PM | Mathematical Impressions: The Golden Ratio
The golden ratio is greatly hyped, partly for its beautiful mathematical properties but also for nonsensical reasons. Distinguishing between the two requires understanding that mathematics is about structures and relationships, not just numbers in isolation.
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7:23 PM | desargues’ theorem in color
the diagram is, essentially, traced from bruce e.~meserve’s _fundamental_concepts_- _of_geometry_ (dover reprint of 1983; originally addison-wesley 1959). but i added in the colors. with which, one has as follows. there’s a red line, a blue line, and a yellow line. to start with. all sharing a point. then two “triangles” are constructed: each of these […]
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6:47 PM | Book Review: “What the Best College Teachers Do” by Ken Bain, 2004
Book review by Richard Elwes: Open a typical book on the theory of pedagogy, and all too often one is confronted by a morass of impenetrable and, one often suspects, unnecessary jargon. So it is a particular pleasure to read … Continue reading →
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6:40 PM | Some angle basics with circles
My older son and I are currently studying how angles and circles interact. I though that a good way for him to review some of the basic properties would be to give a short, sort of mini lecture on three of the properties. First up, what happens when the angle is on the circle: Next…
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6:37 PM | Two Groups of Math Students I Created in My Classroom
Another post from Tap Into Teen Minds. Enjoy! There are two groups of students I used to see forming in my math classroom and my teaching & assessment practices were the main reason why they formed. The post Two Groups of Math Students I Created in My Classroom appeared first on Tap Into Teen Minds.
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6:23 PM | Some trinomial practice
This was created in #GeoGebra (there is a reason for "Gebra" in that name!) Find it on line here.
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6:01 PM | سلسلة حساب التكامل - س20- Calcul d’intégrale اخطاط دالة مثلثة
سلسلة حساب التكامل - س20- Calcul d’intégrale <!-- mathsways336-280 --> (adsbygoogle = window.adsbygoogle || []).push({}); ما يلي شرح شامل لجميع دروس الثانية بكالوريا لكل الشعب العلمية بالاضافة الى سلسلة هائلة من التمارين المحلولة مع الشرح بالفيديو. كما يتم اضافة الجديد اسبوعيا وفي بعض الاحيان يوميا. […]
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