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Posts

February 26, 2015

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10:47 PM | Monade 116
Nel futuro la società umana sarà suddivisa in due macro civiltà: quella delle monadi urbane, agglomerati di palazzoni gigantestchi, chiamati costellazioni al cui interno ad ogni piano, vengono stipati quantità di esseri umani da fare invidia a metropoli come New York; e quella delle campagne, dove quelli che oggi definiremmo contadini vivono coltivando la terra e preservando l'ambiente. Le due civiltà hanno pochissimi scambi, se non quelli strettamente necessari per lo scambio di materie […]
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9:46 PM | Unizor - Probability - Easy Problems 3
Problem AIt's about chess.Two rooks of different color are randomly put on a standard chess board (8x8).What is the probability they are on the same horizontal or vertical line (that is, one can capture another)?SolutionThe sample space contains all the different positions of two rooks on the board. There are 64 positions for one rook and 63 remaining positions for another. That makes 64·63 elementary events in our sample space, all having the same probability of 1/(64·63).Now, for every […]
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9:27 PM | Circles Tasks
We looked at two diagrams as we finished up our unit on Circles. I knew that we didn’t have time for everyone to do both tasks. I wondered whether I could pull off giving students some choice in what they investigated. Both tasks are from the Mathematics Assessment Project. The first can be found as […]
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8:28 PM | Mr. Men #9
Alternates: Kurt Gödel was an Austrian mathematician famous for his incompleteness theorems.
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6:34 PM | Fields MathEd Forum: Big Ideas in Statistics and Probability
Fields MathEd Forum: Big Ideas in Statistics and Probability: I’m heading to the Fields Institute (@FieldsInstitute). I’ve been invited to speak at the Fields MathEd Forum on Big Ideas in Statistics and Probability (related to mathematics education). Here is the abstract for my talk, ‘Grand Probabilistic Delusions’ (which starts at 10:45am on Saturday, February 28th): It is a popular notion that probability is counterintuitive. Sir David Spiegelhalter perhaps said it best: “I […]
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5:06 PM | A simple to state math problem from finance
I asked my colleagues at work as well as my Facebook wall the following question today. It led to quite an interesting discussion in both places! Consider the following transaction: (1) You hand me $100 today. (2) One year from now I give you $100. (3) One year after that I give you an additional…
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4:51 PM | FlipFlop
via Dribble
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3:29 PM | Interesting but Hard to Understand Math Comic
Check out this interesting comic riddle from Spikedmath.com! The sky is the limit when it comes to Math! Do give it a try, before scrolling down to view the answer. Featured Amazon Product: Buy yourself a gift from Amazon! Amazon … Continue reading →
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2:05 PM | ICTM Session: Assessment in the Common Core Era
If the meaning of a grade is to show understanding of math, then...The power to change is not our alone. We are a distant third. Parents are ultimately responsible for their child's education. At the middle school level, he gives homework and posts all work and solutions. HW is not graded but is recorded and students are expected to Check, Correct, and Reflect. They copy four random hw problems onto a form where he has already copied the work and solutions on back. They must check, correct […]
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12:42 PM | MFM2P - Day 17 (Similar Triangles)
I am currently in Toronto about to spend 2 days working with Apple. So this post and the next one are "what should happen", not what happened in class.Today's warm up is this Would You Rather:I did this one with my 2P class last semester. This may seem like a simple calculation exercise, but it was challenging for some. Many calculated how much they would make in a day, then in a week, then in a month, then in a year and they did not get the same answer as someone who went from one week to one […]
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12:30 PM | Stuzzicamenti...al cubo!
Questo giovedì torna finalmente la curiosa rubrica degli "Stuzzica...menti", con un nuovissimo enigma per voi e per i vostri ragazzi!Questa volta vi serviranno 9 stuzzicamenti. Correte in cucina, estraeteli dallo scatolino e posizionateli come nell'immagine, per dare il via al gioco!Siete pronti???Spostate soltanto 3 stuzzicadenti e otterrete un cubo!
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10:56 AM | Tjuvarnas jul: Trollkarlens dotter (2014)
Watch Full Tjuvarnas jul: Trollkarlens dotter in Best QualityNow you can play full Tjuvarnas jul: Trollkarlens dotter in HD quality with duration 90 Min and has been launched in 2014-11-14 and MPAA rating is 0.Original Title : Tjuvarnas jul: Trollkarlens dotterMovie title in your country : Tjuvarnas jul: Trollkarlens dotterYear of movie : 2014Genres of movie : Status of movie : ReleasedRelease date of movie : 2014-11-14Companies of movie : Countries of movie : Language of movie : Durationof […]
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10:31 AM | Alongside Night ()
Free Streaming Alongside Night in High Quality VideoNow you can see Alongside Night in HD format with duration 112 Min and has been aired on and MPAA rating is 0.Original Title : Alongside NightMovie title in your country : Alongside NightYear of movie : Genres of movie : Status of movie : ReleasedRelease date of movie : Companies of movie : Countries of movie : Language of movie : Durationof movie : 112 MinAverage vote of movie : 0Youtube ID of movie : Translation of movie : EN,Cast of movie […]
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10:19 AM | The Wolverine (2013)
Play Full The Wolverine in Best LookNow you can play full The Wolverine in best video format with duration 126 Min and has been launched in 2013-07-25 and MPAA rating is 1945.Original Title : The WolverineMovie title in your country : The WolverineYear of movie : 2013Genres of movie : Action, Adventure, Fantasy, Science Fiction, Status of movie : ReleasedRelease date of movie : 2013-07-25Companies of movie : Ingenious Media, Twentieth Century Fox Film Corporation, Donners' Company, Marvel […]
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9:35 AM | Les Interdits (2013)
Download Full Les Interdits in Best Video FormatNow you can play full Les Interdits in best look with duration 92 Min and was published in 2013-11-27 and MPAA rating is 2.Original Title : Les InterditsMovie title in your country : Les InterditsYear of movie : 2013Genres of movie : Drama, Status of movie : ReleasedRelease date of movie : 2013-11-27Companies of movie : Countries of movie : France, Language of movie : Français, Italiano, עִבְרִית, Durationof movie : 92 MinAverage vote of […]
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9:25 AM | RobEastaway.com
Rob Eastaway is an author. He has a whole bunch of great books (see below for a couple of examples). His website is also home to a handful of great maths puzzles for use in lessons.
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9:23 AM | Headlight Design & Parabolas
This demonstration explains just one of the reasons that parabolas are important in real-life. Headlight design is discussed, specifically the location of the light source as it relates to the shape of the headlight itself.
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7:47 AM | Liar's Dice (2014)
Watch Full Liar's Dice in Top QualityNow you can enjoy Liar's Dice in HD quality with duration 104 Min and was published in 2014-01-18 and MPAA rating is 0.Original Title : Liar's DiceMovie title in your country : Liar's DiceYear of movie : 2014Genres of movie : Status of movie : ReleasedRelease date of movie : 2014-01-18Companies of movie : Countries of movie : India, Language of movie : हिन्दी, Durationof movie : 104 MinAverage vote of movie : 0Youtube ID of movie : Translation of […]
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5:44 AM | The transience of sharing
As a serial organiser, a brain cell explodes when I read on a social network involving teachers, "where can I find?" or "has anyone got?".
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4:49 AM | work worth doing
From the fantastic series finale of Parks and Recreation. I love everything about this. “When we worked here together, we fought, scratched, and clawed to make people’s lives a tiny bit better. That’s what public service is all about. Small, incremental change every day. Teddy Roosevelt once said, ‘Far and away, the best prize that […]
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4:42 AM | The Princess Twins of Legendale (2013)
Full Length of The Princess Twins of Legendale in Best LookNow you can see The Princess Twins of Legendale in best look with duration 73 Min and has been launched in 2013-08-15 with MPAA rating is 0.Original Title : The Princess Twins of LegendaleMovie title in your country : The Princess Twins of LegendaleYear of movie : 2013Genres of movie : Animation, Status of movie : ReleasedRelease date of movie : 2013-08-15Companies of movie : MGA Entertainment, Countries of movie : Language of movie : […]
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4:31 AM | Pad na jou hart (2014)
Best Pad na jou hart in HD FormatNow you can play full Pad na jou hart in HD video with duration 112 Min and was released on 2014-02-14 with MPAA rating is 2.Original Title : Pad na jou hartMovie title in your country : Pad na jou hartYear of movie : 2014Genres of movie : Adventure, Romance, Status of movie : ReleasedRelease date of movie : 2014-02-14Companies of movie : The Film Factory, Countries of movie : South Africa, Language of movie : Afrikaans, Durationof movie : 112 MinAverage vote of […]
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3:44 AM | Class preview for tomorrow in Algebra
Mrs. DesmanLesson Idea
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3:18 AM | Rice Krispie Conic Sections
After seeing Rice Krispie Conic Sections on Shawn’s blog, I knew I had to make them for my class.  I’m so glad I did.  They were amazing.  They are actually very easy to make, and totally worth it.  We have … Continue reading →
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2:47 AM | Finding and Interpreting Slope INB Pages
This has been a weird year of teaching for me.  It's year three which means that I feel like I'm kinda starting to get the hang of this whole teaching thing.  But, at the same time, I see so many areas that I desperately need to improve in.  I go back and forth between feelings of excitement over being able to parts of lessons and notebook pages from previous years and feelings of disappointment in myself for just reusing things from previous years and not making them better. […]
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12:00 AM | On This Day in Math - February 26
Euler calculated without effort,just as men breathe,as eagles sustain themselves in the air.~Francois AragoThe 57th day of the year; 57(base ten) is written with all ones in base seven. It is the last day this year that can be written in base seven with all ones.(What is the last day of the year that can be written with all ones in base two,... base three?)EVENTS1616 Galileo is warned to abandon Copernican views. On February 19, 1616, the Inquisition had asked a commission of theologians, […]

February 25, 2015

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10:35 PM | Birth of a Theorem: A Mathematical Adventure by Cédric Villani – review
Birth of a Theorem: A Mathematical Adventure by Cédric Villani – review: Hannah Fry:The Birth of a Theorem is written as a diary, taking us through the early evolution of the idea in Lyon in 2008, through six months of frustration trying to wrestle the beast of a theorem to the ground at Princeton (his words, not mine) and culminating in the news that he has won the most coveted prize.
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10:15 PM | Induction simplified
When first teaching about the interior angles of a polygon I had an elaborate lesson that involved students drawing quadrilaterals, pentagons, hexagons, etc and measuring and collecting data and finally making a theory. They’d then verify that theory by drawing triangles inside the polygons and realizing Interior Angles of a Triangle had returned. I didn’t […]
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9:47 PM | Técnicas Cualitativas para Pronósticos de Ventas
Las técnicas de tipo cualitativo para efectuar pronósticos de ventas (demanda) se basa en el juicio de un grupo de personas conocedoras, con experiencia y expertas en la materia, lo que les permite dar su opinión y pronosticar el futuro en relación a un tema determinado; esta opinión puede consistir en la entrega de valores […]
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9:33 PM | Class Math Discussions
A few years ago I remember my school district emphasizing the need to use more of a math workshop approach in the elementary classrooms. The school district even invited a math workshop specialist to present on all the different ways to set up groups and organize guided math.  Some of the teachers gleaned the information […]
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