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# Posts

### March 08, 2014

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centerofmath: Just one reason why!!!
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By way of fixing the current array of relational concepts in our minds, let us work through a sample of products from our relational multiplication table that will serve to illustrate the application of a comma relative to an absolute … Continue reading →
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A classic SAT math challenge that will probably not go away on the new SAT coming in 2016. And just imagine if calculators are not allowed for this! Watch "4% of 8% of 16x is what % of 2x? New SAT, Common Core and Percents Pt 1" on YouTube - https://www.youtube.com/watch?v=WY58ebnZvCI&feature=youtube_gdata_player VISIT ME DAILY ON TWITTER AT twitter.com/dmarain
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There Are Only 3 Countries Where Girls Feel More Comfortable With Math Than Boys: Olga Khazan: When it comes to math, the picture is grim: Jordan, Qatar, and the United Arab Emirates are the only three countries in which boys are significantly less likely to feel comfortable working on math problems than girls are. In all of the other countries, the girls are more likely to say they feel “helpless while performing a math problem.” [source: mme rss]
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About 9 months ago, I gave a presentation at the World Future Society Conference called The Promise and Perils of Personalization. After thinking, reading, discussing, and musing about personalization for about a year, I realized that there is a fine line between useful personalization and creepy personalization. It reminded me of the “uncanny valley” in [...]
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Solo per tranquillizzarvi, anche io come molte donne oggi, 8 marzo, sono andata dal parrucchiere. Il mio parrucchiere di fiducia abita con me e sa usare la macchinetta per capelli benissimo!Guardare per credere!
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During the month of March many primary classes in my school are emphasizing whole number characteristics. Second grade was and continues to focus on place value, even/odd numbers and patterns.  Students used base ten blocks last Monday and played Name that Number with their peers. Teachers in the upper grades in my district have experimented with […]
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“‘We Have Always Fought’: Challenging the ‘Women, Cattle and Slaves’ Narrative” by Kameron Hurley â A Dribble of Ink: I’m going to tell you a story about llamas. It will be like every other story you’ve ever heard about llamas: how they are covered in fine scales; how they eat their young if not raised properly; and how, at the end of their lives, they hurl themselves – lemming-like – over cliffs to drown in the surging sea. They are, at heart, sea creatures, birthed […]
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Bei ZEIT Online möchte man uns die Evolutionstheorie bzw. deren Paradoxien mit folgendem Beispiel veranschaulichen: A sei ein unfehlbarer Schütze, der immer trifft. B habe eine Treffer-Wahrscheinlichkeit von 80 Prozent, trifft also im Schnitt acht Mal bei zehn Schüssen. C habe eine Treffer-Wahrscheinlichkeit von 50 Prozent. Es wird dann dargestellt, dass für jeden der drei…
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In case you’ve been waiting, the full version of Algeboats is out in the iPad store for $4.99. You can see some of the gameplay for the Lite version of Algeboats on Youtube. <iframe width=”420″ height=”315″ src=”//www.youtube.com/embed/TIx_NFIhHWM” frameborder=”0″ allowfullscreen></iframe> The game is designed to teach students about what algebraic variables mean and to begin to understand [...] + Another busy week at Retraction Watch. Here’s what was happening elsewhere around the web in science publishing and research integrity news: Hoax papers such as the 120 fake studies published by IEEE and Springer aren’t the real problem in science, says Achilleas Kostoulas. Is there “too much success” in studies published in Psychological Science? How […] + Certains lecteurs se demandent peut-être comment obtenir pratiquement une matrice telle que la matrice présentée à la fin du billet précédent; d’autres ne connaissent peut-être pas les quaternions, pour lesquels ce billet risque alors de ne pas être très parlant. Je vais présenter ici une construction de l’algèbre basée sur une jolie méthode, appelée le […] + I’ve referenced Vilma Mesa‘s Classroom Mapping for a while now, and want to give this some more thoughtful due diligence. You can see examples of Vilma’s Classroom mapping in this Slideshow (the images are shared with her permission and you may reshare them by sharing the slideshow). Maps of Interaction in Math Classrooms from Maria [...] + Today is International Women's Day, celebrated with a charming video at google.com and here with lines from Enheduanna (2285-2250 BCE), the earliest woman known to me who was both poet and mathematician. The true woman who possesses exceeding wisdom, She consults a tablet of lapis lazuli, She gives advice to all lands, She measures off the heavens, she places […] + How to shuffle songs?: Lukáš Poláček: At Spotify we take user feedback seriously. We noticed some users complaining about our shuffling algorithm playing a few songs from the same artist right after each other. The users were asking “Why isn’t your shuffling random?”. We responded “Hey! Our shuffling is random!” So who was right? As it turns out, both we and the users were right but it’s a bit more complicated than that. It also tells a nice story about how to interpret […] + spring-of-mathematics: Chess on the Dot is a chess variant invented by Joshua Chao in 2010, which uses a total sphere (not a sphere-like cylinder) as chessboard with standard rules of chess. The digital version of “Chess on the Dot” won red dot design award (Germany) in 2010.All rules of chess can be applied to Dot without change because the surface of Dot is essentially a 2-dimensional membrane (without borders), and all squares on it can be displayed as a 2-dimensional, flat and […] + I’ve been giving versions of this presentation at several events lately: AlaMATYC, SXSWEdu, STEAM3, and Elgin CC’s Distance Learning Conference. I said I would post the slides, and so here they are in one version. Surviving (and thriving) in the Age of Technology-Enhanced Instruction from Maria Andersen To see the video of students in the [...] + Να βρείτε τον Γεωμετρικό τόπο των μέσω των χορδών της παραβολής$y^2=4x$που έχουν συντελεστή λ=$\frac{1}{2}\$.Διαβάστε περισσότερα »
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Rejected postsFiled under: rejected post
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Uit de extra opgaven ruimtefiguren. Lichamen die passen in een kubus met ribben van 6 cm.Bereken de inhoud.Je moet maar zien dat dit een kubus is met daaraf gesneden 4 piramides met een driehoek als grondvlak. Dat grondvlak is 18 cm² en de hoogte is 6. Dan kom je er wel uit, maar een beetje lastig is het wel...
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I was going to post yet one more discussion of our discussion of the discussion of the discussion of some paper that I don’t really care about, but then I was like, aaaahh, what’s the point? So instead here’s a pointer to the first paper I ever published. It’s the very last one on this […]The post Disagreeing to disagree appeared first on Statistical Modeling, Causal Inference, and Social Science.
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I was reading an article on autism and the article mentioned that autism is much more prevalent in boys than girls. This article states that The Centers for Disease Control and Prevention has stated that about 1 out of every … Continue reading →
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3 = 8 - 1 - 4
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Aunt Pythia missed you very much last week and is ever so grateful to return today. And although she usually takes on four questions from readers, today she feels like switching it up and taking on three but making them extra delicious. She hopes you agree that this was the correct choice. Plus she’s running […]
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We examine more about divisibility rules and see why they work. In this post, we discuss divisibility by 4. If you can recall, divisibility by 4 states that A number is divisible by 4 if the last two digits are … Continue reading →The post The Proof of Divisibility by 4 appeared first on Proofs from The Book.
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Scikit-Learn   The Sun     Flexible Muscle-Based Locomotion for Bipedal Creatures  InMoov Open source 3D printed robot    InMoov using script: full.py MRL Join the CompressiveSensing subreddit or the Google+ Community and post there ! Liked this entry ? subscribe to Nuit Blanche's feed, there's more where that came from. You can also subscribe to Nuit Blanche by Email, explore the Big Picture in Compressive Sensing or the […]
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Photo on 2014-03-08 at 05.19, originally uploaded by vlorbik. here’s the same group… call it G… appearing as the lower-left hex board from a set of four. we intend to display an accurate visual representation of the simple group (S) of order 168. our group (G) is one of many 7-element subgroups (this particular one […]
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One of the things that has been keeping me busy for the past couple of weeks is getting everything ready for our blood drive at school.  Student Council was volunteered to help run the blood drive, and I'm in charge of Student Council.  So, it's only naturally that I'm now semi-in-charge of the blood drive. Have I mentioned that I know nothing about coordinating a blood drive?  I've never even donated blood before.  I've always had trouble getting blood drawn, so I've always […]
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Photo on 2014-03-08 at 04.56, originally uploaded by vlorbik. here’s a hex board with seven icons on it; each icon has seven colors; the seven permutations of colors-into-hexes (each icon has seven hexes) can be considered as the objects of a cyclic group. specifically { () = \identity (1234567) = \psi (1357246)= \psi^2 (1473625)=\psi^3 (1526374)=\psi^4 […]
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Filed under: Kids, Mountains, pictures, Statistics, Travel, University life Tagged: 14w5125, Advances in Scalable Bayesian Computation, Banff International Research Station for Mathematical Innovation, Bayesian computation, BIRS, Canada, MCMC, Monte Carlo Statistical Methods, simulation