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Posts

July 30, 2015

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6:20 PM | Math(s) Teachers at Play #88 via mathematicsandcoding
From elementary to high school, manipulatives to Minecraft, there’s plenty of fun to be had at this month’s math education blog carnival: Math(s) Teachers at Play 88 Enjoy! So, here is issue 88 of the Math(s) Teachers at Play blog carnival. This acts as a round up of some cool blog posts that have been … Continue reading Math(s) Teachers at Play #88 via mathematicsandcoding →
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5:27 PM | Analysis -> (Topology) -> Algebra
Originally posted on Math Online Tom Circle:Mathematics is divided into 2 major branches: 1. Analysis (Continuity, alculus) 2. Algebra (Set, Discrete numbers, Structure) In between the two branches, Poincaré invented in 1900s the Topology (拓扑学) – which studies the…
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5:27 PM | Dividing Fraction Anchor Chart {Poster and Cards}
Dividing Fraction Anchor Chart {Poster and Cards} Poster/Anchor Chart with Cards for Students A anchor chart to put on your Math Vocabulary board to use as a reference. Along with cards to use as bookmarks for a quick reference. Also included is a 24inch x 36inch (poster size) […] Related Math Games: Dividing Fraction {Poster/Anchor Chart and Cards} What is a Fraction Anchor Chart {Poster and Cards} How Can I Multiply a Fraction = Poster/Anchor Chart with Cards for Students
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3:13 PM | Newton's Method Interactive Graph
De methode van Newton-Raphson, ook bekend als de methode van Newton, is een numeriek algoritme om de nulpunten van een functie te bepalen. Je kunt dit gebruiken voor functies die differentieerbaar zijn en waarvan de afgeleide bekend is. bronAnalyse + - hoofdstuk 4Numerieke methoden, halveringsmethode, Newton-Raphson, Regula falsi.
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2:52 PM | #70 Days letting go ... getting started
I feel bummed today.It is the math textbook adoption year.  Yesterday I went to training for the textbook selected for our math course.  I left disappointed.I'm not bound to a textbook.  I use it as a reference tool, an extra help for students who are struggling - who need extra practice, and for question sets. Our previous text was OK, not great, but had a span of materials that was helpful.  There were powerpoint presentations with detailed examples, tutorial videos, […]
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2:07 PM | 7 Days of Maths http://www.intmath.com #4
Matrix Applet
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12:30 PM | Free Math Symbols Posters
Fair Warning:  If you get annoyed by blog posts about posters I've created for my classroom, you might want to avoid my blog for the next few days.  Let's just say I've gone a little poster crazy the past few days and created a heap of new posters for my classroom.  I haven't been able to actually start decorating my classroom for the upcoming school year, so I've been compensating by just making pretty things to hang up in it eventually. Don't worry.  I've done some actual […]
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8:17 AM | IntMath Newsletter: Newton’s Method, Desmos activities
In this Newsletter: 1. New interactive graph: Newton's Method 2. Newton's Method, accuracy and floating point numbers 3. Resource: Desmos Activities 4. Math puzzles 5. Math movie: Talks for people who hated math in high school 6. Final thought: Success often means failure first The post IntMath Newsletter: Newton’s Method, Desmos activities appeared first on squareCircleZ. Related posts: Newton’s Method interactive graph I added a new interactive graph that helps […]
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7:56 AM | Newton’s Method, accuracy and floating point numbers
YouTube engineers faced a problem as the number of views for Gangnam Style approached 2 billion. I found related issues when developing the Newton's Method graph. The post Newton’s Method, accuracy and floating point numbers appeared first on squareCircleZ. Related posts: Newton’s Method interactive graph I added a new interactive graph that helps explain... IntMath Newsletter: Newton’s Method, Desmos activities In this Newsletter: 1. New interactive graph: Newton's […]
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7:54 AM | Newton’s Method interactive graph
I added a new interactive graph that helps explain how Newton's Method works. Newton's Method uses differentiation to solve non-linear equations and is especially useful when we can't factor the equation. It's very commonly used by computers when solving math-based problems. The post Newton’s Method interactive graph appeared first on squareCircleZ. Related posts: Newton’s Method, accuracy and floating point numbers YouTube engineers faced a problem as the number of... IntMath […]
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4:41 AM | Handwritten Pythagoras
No summary available for this post.
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4:34 AM | Balance Equation Puzzles
One of the ways that I teach solving linear equations (things like 2x + 4 = 3x – 5) is by using balance puzzles: squares are x’s, circles are constants. The puzzle above is the same as 2x + 2 = 8. The solution, at the bottom, is the same as x = 3. Credit: […]
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12:26 AM | Analyzing Errors - Free Poster
This year I'm making lots of tiny changes to my classroom. Still doing notebooks.  But, I'm letting students use their notebooks on their quizzes.  And, our notebooks are going to have a heap more worked examples in them.  Still doing SBG.  But, I'm changing the format of my quizzes and what students have to do to be able to requiz. Still doing A/B/Not Yet.  But, I'm toying with the idea of changing how I enter these grades in the computer.  This is yet to be […]

July 29, 2015

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11:12 PM | Review: Boaler (2015) - What's Math Got to Do With It?
I have read a lot of research papers, articles, books, magazine articles, and blog posts about math education and find it impossible to keep them all straight. Writing a review helps me process and remember the main points and gives me something I can look back on. I hope it helps you too. Check out all my reviews. […] The post Review: Boaler (2015) - What's Math Got to Do With It? appeared first on Math Fireworks.
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11:00 PM | On This Day in Math - July 30
I have created a new universe from nothing. ~Janos Bolyai The 211th day of the year; 211 is a primorial prime,(a prime that is one more, or one less than a primorial  can you find the next larger (or smaller) primorial prime? 211 is also the sum of three consecutive primes (67 + 71 + 73)...There are also 211 primes on a 24-hour digital clock. (00:00 - 23:59) *Derek Orr ‏@ DerektionaryEVENTS1738 Euler sends a letter to John Bernoulli with the solution to a question from Danial […]
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10:42 PM | Voices in Your Head
We’ve all been there and will probably be there again, and if this doesn’t […]
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9:23 PM | Prima di Adamo
La fascinazione verso le teorie mistiche della reincarnazione si unisce con l'evoluzionismo, che stava muovendo i suoi primi passi, in Prima di Adamo, romanzo di Jack London che potremmo tranquillamente classificare come pura avventura.L'idea di London è, infatti, quella di raccontare la vita, più che fittizia di un nostro progenitore, appartenente a una di quelle razze di primati apparse prima degli uomini e da questi soppiantate. Attraverso il sogno, espediente narrativo utilizzato nella […]
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9:01 PM | Original LEGO calculation busted by math professor
Original LEGO calculation busted by math professor: Chris Burns:This Friday a documentary will be released by the name of “A LEGO Brickumentary,” and in it, a math professor will tell you how many different LEGO creations you can make. Of course the real number isn’t entirely feasible to calculate. Back in 1958, LEGO estimated and suggested through a patent (as created by the original LEGO creator’s son, Godtfred Kirk Christiansen) that six standard LEGO bricks could potentially be […]
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7:09 PM | Talking About Guns at School
Handling socially sensitive conversations is part of our job. Here's how I handle the student that likes to talk guns.
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6:24 PM | Simulación de una Línea de Espera M/M/1 (Teoría de Colas) en Excel
Un sistema de espera M/M/1 es aquel que considera un servidor, con tiempos exponenciales de servicio y entre llegadas de clientes. La implicancia que los tiempos de servicio se distribuyan exponencial es que existe una preponderancia de tiempos de servicio menores al promedio combinados con algunos pocos tiempos extensos. Un ejemplo de ello es lo […]
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6:11 PM | Some History Notes and Some Requests for Information on Division Symbols
Recently James Tanton posted a short article about problems that are circulating on the internet such as (and this is the one he used) "What is the value of the following expression: 62 ÷ 2(3)+4, and then asked, "Is the answer 10 or is the answer 58?" (my personal choice for historical reasons explained below is 3.6) I don't care to argue the possible choices, although Professor Tanton does a good job of that in his blog, but I'm more interested in the history of some symbols for division he […]
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4:00 PM | WordPressers Making a Splash
Bloggers are leaving their marks everywhere, online and in print.
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3:23 PM | Technology 2015-2016
I am at that point in the summer where I decide I need to start planning but then my temporary ADD kicks in.  Standards, Lessons, Benchmarks, PARCC, Technology, Class Rules,  INBs, Flipclass...It drives me crazy!  I always say to myself KISS! But of course my brain doesn't work that way.So I start by breaking it down into categories,  This post is obviously about technology.  I won't lie I am the teacher in my school that loves technology and gets super excited about […]
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2:05 PM | 7 Days of Maths http://www.intmath.com #3
Interactive Trigonometric Ratios
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12:51 PM | Cómo Calcular Cp y Cpk con el Complemento SPC for Excel
El Cálculo de los índices Cp y Cpk en el Control Estadístico de Procesos permite evaluar que tan bien el proceso se apega a las especificaciones técnicas deseadas o equivalentemente determinar si el proceso cumple el objetivo funcional para el cual fue diseñado. En el siguiente artículo mostraremos cómo obtener de forma rápida y sencilla […]
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12:49 PM | TinyScan – PDF Scanner App for iPhone / iPad
I have been using an amazing app that I really don’t know how I lived without called TinyScan.  Holy mac, this app is a teachers dream!  There is a free version which I tried first.  But, I quickly upgraded to the premium … Continue reading →
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9:00 AM | Ask Uncle Colin: a topological conundrum
Ask Uncle Colin is a chance to ask your burning, possibly embarrassing, maths questions — and to show off your skills at coming up with clever acronyms. Send your questions to colin@flyingcoloursmaths.co.uk and Uncle Colin will do what he can. Dear Uncle Colin, I’m having a topology crisis. I’ve been trying to understand why 3.9.12 isn’t a valid semi-regular polyhedron and I can’t make sense of it. I’m driving myself to distraction! — Vertices, Edges, […]
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8:57 AM | Knife Act
I have just baked a rectangular cake when my wife comes home and barbarically cuts out a piece for herself. The piece she cuts is rectangular, but it’s not in any convenient proportion to the rest of the cake, and its sides aren’t even parallel to the cake’s sides. I want to divide the remaining cake into two equal-sized halves with a single straight cut. How can I do it? http://www.futilitycloset.com/2015/07/29/knife-act/
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8:40 AM | Where the Laws No Longer Hold
Next, my brain exploded and the universe dissolved around me, because I had just punched logic in the face. Continue reading →
Editor's Pick
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7:33 AM | New GCSE: Sequences
I've been busy getting my head around the additional sequences content on the new 9 - 1 Maths GCSE and thought it would be helpful to share my findings. Quite a lot has been added to the higher tier. Previously students covered all the GCSE sequences content at Key Stage 3 so there was nothing new to teach at Key Stage 4. But now we need to include a few weeks' worth of sequences lessons in our
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