X

# Posts

### October 06, 2015

+
Probability and statistics rarely get this kind of attention. But this story is special. It’s about debunking a long-held statistics result that itself was about debunking sports lore. There are many angry comments on this WSJ article in regards to a draft of an unpublished study. I was stunned at first and skeptical since the … Continue reading The Hot Hand Is Real?! Understanding A Controversial Statistics Paper – Game Theory Tuesdays
+
Here is my 3-leafed rose plot in Desmos. Below you will find the same plot in Geogebra. The GeoGebra version, to me, can be presented to students earlier in their math program.
+
Operations with Functions:How to add and subtract functions.0:06 Introduction to adding and subtracting functions0:03 Problem 1,add g(x) +j(x)1:21 Solution to problem 1 (Adding functions)1:36 Problem 2 Subtract functions j(x) -g(x)3:07 Solution to problem 2On MooMooMath we provide helpful Math and Geometry videos to help you figure out how to solve Math problems or review old Math concepts you may need to refresh. If you’re a Math student or teacher, we'd love to have you subscribe and join […]
+
Okay, let’s be clear. I *DO* teach.  A lot. But students don’t often know how to articulate that *how* I’m trying to teach may differ, at times, from some of their past math-class experiences. They might not know exactly how … Continue reading →
+
Pas de télévoteurs dans votre école ?Pas de budget pour Dyknow ?Pas de patanteux pour vous bidouiller un système de réponses ?Qu'à cela ne tienne, vos étudiants ont sans doute des cellulaires et/ou votre école un réseau wifi.Kahoot! permet de contourner le problème.L'application vous permet de créer un quiz, un sondage ou même une discussion.Vous dites la phrase magique :"Prenez vos cellulaires."Les étudiants entre le NIP du questionnaire et c'est parti !Vous voulez vérifier la […]

### October 05, 2015

+
We’ve just put up an ad for a new 2 year postdoctoral position at the ANU, to work with myself and Tony Licata. We’re looking for someone who’s interested in operator algebras, quantum topology, and/or representation theory, to collaborate with us on Australian Research Council funded projects. The ad hasn’t yet been crossposted to MathJobs, […]
+
A car travels at 40 kilometers per hour traveled for 7 hours. The table of the distances traveled with respect to time is shown below. Observe the relationship between the distance traveled and the time. As the time increases, the distance traveled increases. If the number of hours increases two times, then the distance also […] Math and Multimedia - School math, multimedia, and technology tutorials.
+
The book Making It Stick – the Science of Succesful Learning has caused me to consider how I approach practice and assessment in my math classroom. The section “Mix Up Your Practice”, in particular, provides ideas for considering why spaced practice, … Continue reading →
+
This year our district has adopted new math programs at all levels. At the elementary level we have adopted Bridges, from The Math Learning Center. It is an inquiry based program, encouraging students to think deeply about mathematics, numbers and their relationships. We changed to this program from enVision, which teachers were constantly saying they disliked […]
+
[after proving Euler's formula e π i + 1 = 0 in a lecture]Gentlemen, that is surely true, it is absolutely paradoxical; we cannot understand it, and we don't know what it means. But we have proved it, and therefore we know it is the truth.~Benjamin PeirceThe 279th day of the year; Every positive integer is the sum of at most 279 eighth powers. See Waring's problem279 = 3^2 + 3^3 + 3^5 (powers are consecutive primes). *Derek Orr For more fun with daily calendar math see Dereks Daily Math and […]
+
Sara’s post last week about applying for grants hit me right in the middle of, of course, applying for a grant. I found Sara’s tips very useful and loved the advice from the Chronicle on how not to get a … Continue reading →
+
CALL FOR PARTICIPATIONWINE 2015: The 11th Conference on Web and Internet EconomicsCentrum Wiskunde & Informatica (CWI), Amsterdam, The NetherlandsDecember 9-12, 2015, with tutorial program on December 9, 2015http://event.cwi.nl/wine2015 <http://event.cwi.nl/wine2015>---------------------------------------------------------------------------------------------------------------------------Registration is now […]
+
“Recently, El Moselhy et al. proposed a method to construct a map that pushed forward the prior measure to the posterior measure, casting Bayesian inference as an optimal transport problem. Namely, the constructed map transforms a random variable distributed according to the prior into another random variable distributed according to the posterior. This approach is […]
+
Triality, its action on the 24-cell, and the 'tetrality' description of \$\mathfrak{so}(8)\$.
+
The epsilon-delta proof, the nemesis of many a calculus student, is an initiation rite into the mysteries of proof writing. -- Read more on ScientificAmerican.com
+
Recall that Kim Davis is the Kentucky clerk who refused to issue marriage licenses for same-sex couples and was cheered on by Mike Huckabee and other Republican candidates for Prez. Had she refused to issue marriage license for couples that had been previously divorced than neither Mike Huckabee would not be supporting her, and the Pope wouldn't have a private 15 minute meeting with her telling her to stay strong (NOTE- I wrote this post in that tiny window of time when it was believed she did […]
+
Here is my 3-leafed rose plot in Desmos. Below you will find the same plot in Geogebra. The GeoGebra version, to me, can be presented to students earlier in their math program.
+
Last week I visited a few places in the US. My first stop was Morgantown, West Virginia where my host was Casian Pantea. There I had a lot of discussions with Casian and Carsten Conradi on chemical reaction network theory. This synergized well with the work I have recently been doing preparing a lecture course […]
+
The Simons Institute for the Theory of Computing at UC Berkeley invites applications for Research Fellowships for academic year 2016-17. Simons-Berkeley Research Fellowships are an opportunity for outstanding junior scientists (at most 6 years from PhD by Fall 2016) to spend one or both semesters at the Institute in connection with one or more of […]
+
+
+
I just glanced at my 4th graders homework – they are learning subtraction. I noticed that he was borrowing, which isn’t they way he usually does subtraction. That’s fine. the conversation went like this: Me: Oh, you learned about borrowing? him: yup. Me: Do you like it better than your way of subtracting? him: They…
+
“Sir, I’m not even allowed to buy a bottle of wine to have with my dinner. How am I supposed to choose what I want to do for the rest of my life?” A year 13 pupil in my home team (tutor group) asked me that today while discussing her UCAS choices and it stopped […]
+
تصحيح تمرين 4 حول الحساب العددي للاولى باك علوم رياضية x و y عددان حقيقيان موجبان، وa عدد حقيقي بحيث a=x+y بين أن : sqrt(4 x+1)+sqrt(4y+1)<=2(a+1)مبادئ حول المنطق ◄المجموعات والتطبيقات خاص بالأولى باك علوم رياضية ◄التعداد خاص بالعلوم رياضية ◄الحسابيات في Z خاص بالعلوم رياضيةتصحيح […]
+
This is a guest post written by my brother Andy (@andycav_25). Andy is a primary teacher in West Yorkshire and currently teachers Year 5. Fractions Jigsaw from NRICH In the 2014 Primary National Curriculum, there’s much more emphasis on problem solving in maths. Henceforth, we’ve had a few staff meetings and twilights on this recently. […]
+
Let and suppose is a triangle such that there exists a point which satisfies , , . What is the relative position of with respect to the triangle such that a) The area is maximized; b) The perimeter is maximized. This was inspired by this answer on Math Overflow. Solution: It is clear that in […]
+
Una Cadena de Markov en tiempo discreto consiste en una clase particular de un proceso estocástico donde se verifica el cumplimiento de la propiedad markoviana (en términos simples establece que el futuro es independiente del pasado dado el presente) y la propiedad estacionaria (la probabilidad de transición de un estado i a un estado j […] La entrada Preguntas Frecuentes de Cadenas de Markov aparece primero en Gestión de Operaciones.
+
Animation film by Mirai Mizue http://im-possible.info/english/anim/online-video/youtube-mirai-mizue.html
+
Here are two new hardware randomized acquisition of signals:Development of a fast electromagnetic shutter for compressive sensing imaging in scanning transmission electron microscopy Armand Béché, Bart Goris, Bert Freitag, Jo VerbeeckThe concept of compressive sensing was recently proposed to significantly reduce the electron dose in scanning transmission electron microscopy (STEM) while still maintaining the main features in the image. Here, an experimental setup based on an electromagnetic […]