While I agree with the concerns of many parents that overtesting is damaging to children and subverts the purpose of education, I don't believe that the Common Core has set the bar too high, at least in math, my area of expertise. I know from direct experience with children that we can expect far more thinking of them than is commonly held. That is the Core Belief of my blog. The problem is that teachers have not received the necessary preparation and the testing has been rushed and lacking in quality control. We're trying to set the bar higher for children without raising the bar…
Math

Most Topular Stories

Another Common Core Rant  not a video...
MathNotations15 Apr 2014  5:31 am 
Re: Application of Quantum dot enabled displays
Search for "math OR mathematics"20 Apr 2014  4:32 amIf the costs can be brought down and such panels can be installed in the window pans then it will bring down the electricity costs and scarcity by some level. 
'Body hack' app by math researchers shortcuts jetlag recovery
Mathematics News  ScienceDaily10 Apr 2014  4:46 pmA different kind of jetlag mobile app released today by mathematicians reveals previously unknown shortcuts that can help travelers snap their internal clocks to new time zones as efficiently as possible. 
A Month of Math, Magic and Mystery
Scientific American  Math16 Apr 2014  8:52 amHaven't got the Math Awareness Month bug yet? Here are three teasers to get you started: 1. What read the same right side up and upside down, and combine mathematics, art, and language?  Read more on ScientificAmerican.com 
The 16th Century’s Line of Fire
NYT > Mathematics7 Apr 2014  10:00 pmMathematics would seem to be immune to ideology. But not always, as a look back at a controversy from the dawn of the modern era makes clear.

Search for "math OR mathematics"

Re: Application of Quantum dot enabled displays
20 Apr 2014  4:32 amIf the costs can be brought down and such panels can be installed in the window pans then it will bring down the electricity costs and scarcity by some level. 
All this food talk is making my stomach uneasy.
20 Apr 2014  4:31 amI have no fear of a good bagel going stale in the lab. They're never left uneaten long enough for that to happen. 
overhyped smartphone market
20 Apr 2014  4:30 amMore and more companies are coming up with midrange smartphones and these smartphones are also popular and fits the pocket. 
Bob Hunter commentary: All night games for Ohio State football isn't so farfetched
20 Apr 2014  4:00 amWhen athletic director Gene Smith was asked if he could see a day when Ohio State will play all of its football games at night, he answered with an emphatic "no." 
Printed Letters: April 20, 2014
20 Apr 2014  3:54 amD51 should keep teacher, ditch GJHS administration As a parent of a child taught by Jane White, I can personally vouch for her professionalism and quality as an educator.

Mathematics News  ScienceDaily

'Body hack' app by math researchers shortcuts jetlag recovery
10 Apr 2014  4:46 pmA different kind of jetlag mobile app released today by mathematicians reveals previously unknown shortcuts that can help travelers snap their internal clocks to new time zones as efficiently as possible. 
Virus structure inspires novel understanding of onionlike carbon nanoparticles
10 Apr 2014  9:22 amSymmetry is ubiquitous in the natural world. It occurs in gemstones and snowflakes and even in biology, an area typically associated with complexity and diversity. There are striking examples: the shapes of virus particles, such as those causing the common cold, are highly symmetrical and look like tiny footballs. 
Should you trust your financial advisor? Pseudomathematics and financial charlatanism
10 Apr 2014  7:30 amYour financial advisor calls you up to suggest a new investment scheme. Drawing on 20 years of data, he has set his computer to work on this question: If you had invested according to this scheme in the past, which portfolio would have been the best? His computer assembled thousands of such simulated portfolios and calculated for each one an industrystandard measure of return on risk. Out of this gargantuan calculation, your advisor has chosen the optimal portfolio. After briefly reminding you of the oftrepeated slogan that "past performance is not an indicator of future results," the… 
Technical tests of biodiversity: When physicists play with genetics of populations
9 Apr 2014  6:39 amThe effect of migration on biodiversity (intended as the coexistence of different genetic traits) is an open question: does migration increase or decrease the genetic variability of populations? Or is the relationship more complex than that? A team of physicists has developed and analyzed a model that simulates the effect of migration on the genetic biodiversity of populations, and discovered that the effect is all but trivial. 
Method offers potential for understanding antibacterial resistance
8 Apr 2014  4:48 amBiologists could gain a deeper understanding about how species have evolved  and even find ways to address antibiotic resistance  using tools that were recently developed. By basing their methods on mathematical models and Bayesian analysis, the researchers succeeded in producing tools for biologists who are interested in jumping genes and the traits they carry with them.

Scientific American  Math

A Month of Math, Magic and Mystery
16 Apr 2014  8:52 amHaven't got the Math Awareness Month bug yet? Here are three teasers to get you started: 1. What read the same right side up and upside down, and combine mathematics, art, and language?  Read more on ScientificAmerican.com 
The Secret Spiritual History of Calculus
14 Apr 2014  5:00 amIntegral calculus originated in a 17thcentury debate that was as religious as it was scientific  Read more on ScientificAmerican.com 
5 Tips for Faster Mental Division (Part 2)
13 Apr 2014  7:00 amThe Math Dude: Quick & Dirty Tips to Make Math Simpler  Read more on ScientificAmerican.com 
5 Tips for Faster Mental Division (Part 1)
12 Apr 2014  7:00 amThe Math Dude: Quick & Dirty Tips to Make Math Simpler  Read more on ScientificAmerican.com 
Measure Yourself by the Standard of the Capybara
11 Apr 2014  5:30 amWe all know a lot of measurements about ourselves. You are some number of feet or meters tall. You weigh some number of pounds, kilograms, or stone.  Read more on ScientificAmerican.com

NYT > Mathematics

The 16th Century’s Line of Fire
7 Apr 2014  10:00 pmMathematics would seem to be immune to ideology. But not always, as a look back at a controversy from the dawn of the modern era makes clear. 
In N.C.A.A. Tournament Bracket, Mathematician Outdoes Matildas
24 Mar 2014  10:00 pmTim Chartier, a math professor, has picked 33 of 48 men’s games correctly, with help from his son. They have outdistanced a rotating cast of young Broadway stars, as well as coin flips. 
Flies That Do Calculus With Their Wings
18 Mar 2014  10:00 pmScientists glued tiny magnets to fruit flies to learn about the millisecond aerial ballets required to stay aloft when you’re a tiny insect. 
Mathematicians Are Hoping Their Calculations Add Up to the Perfect Bracket
15 Mar 2014  10:00 pmThe reason behind their motivation? How about 1 billion of them? That is the number of dollars offered by Quicken Loans for an unblemished result in predicting N.C.A.A. tournament games 
A Viable Common Core?
22 Feb 2014  9:00 pmEducators and others take part in a national debate over the new learning standards.

Wild About Math!

Visually stunning math concepts which are easy to explain
10 Apr 2014  9:01 amMath StackExchange has a great list of "visually stunning math concepts which are easy to explain." 
Tim Chartier – Inspired by Math #34
6 Apr 2014  10:35 pmMy favorite kind of Math challenges are those that children can understand and professional mathematicians can't solve easily (or at all.) Math Bytes: Google Bombs, ChocolateCovered Pi, and Other Cool Bits in Computing is a brand new book from Princeton University Press that has a great collection of fun problems that kids (middle school and above) and their parents can work on together. Author Tim Chartier does a fantastic job of weaving some wonderful stories into his sharing of a number of challenges that are either original or new spins on old problems. And, many (all?) of the puzzles in… 
Chuck Adler – Inspired by Math #33
13 Feb 2014  6:27 pmI've admitted before that Physics and I have never gotten along. But, science fiction is something I enjoy. So, when Princeton University Press sent me a copy of Physics Professor Chuck Adler's new book "Wizards, Aliens, and Starships," I was intrigued enough that I wanted to interview the author. This interview rambled, but in a good way. Chuck is a great guest, he's passionate about physics and math as well as fantasy and science fiction. We flowed through a number of subjects and had a grand time. Enjoy! About Chuck Adler Chuck Adler grew up in the DC suburbs, and went to a very good… 
Martin Gardner undiluted
22 Nov 2013  11:54 amPrinceton University Press recently published "Undiluted HocusPocus: The Autobiography of Martin Gardner." I've not reviewed the book since these days I pretty much only interview authors and living authors at that. So, no review from me, but I highly recommend Shecky's review and Shecky's first impressions at Math Tango. What inspired to blog this afternoon was an email I received from Andrew S. DeSio, Director of Publicity for Princeton University Press. Andrew has asked me to help spread the word that Martin Gardner really did write his own autobiography. Here's an excerpt from Andrew's… 
Colm Mulcahy – Inspired by Math #32
21 Sep 2013  10:56 amI had the pleasure of interviewing mathematician and mathematical card magic innovator Colm Mulcahy. Dr. Mulcahy just published a book, Mathematical Card Magic: FiftyTwo New Effects. We spent a delightful hour discussing his book, his love of math and magic, and the inspiration behind writing the book. Plus, Dr. Mulcahy shares a few challenges listeners might enjoy chewing on, sprinkled throughout the interview. And, we discuss Martin Gardner, who Colm Mulcahy knew for the last decade of his life and met with several times. You may also enjoy Shecky's text interview with Colm Mulcahy at Math…

Loren on the Art of MATLAB

Debunking Bad News Analysis with MATLAB
7 Apr 2014  8:28 amWith spring comes the tax filing deadline. This post is also about taxes. I'd like to introduce this week's guest blogger, Toshi Takeuchi. Toshi analyzes web data and runs online ad campaigns here at MathWorks.Hi, I am Toshi. I am a big fan of Nate Silver who made analyzing data very cool and mainstream. Because I analyze data a lot, it bugs me when I see questionable analyses passed around in the news media.So when I saw this CNBC post on Google+, my “bogus data analysis” radar started sending high alerts.This map shows you the ranking of states based on average tax amount,… 
MATLAB Virtual Conference 2014
17 Mar 2014  10:47 amWe are hosting another worldwide conference this month, online. Its coming Marcn 26, and has special tracks includingDiscover MATLAB and SimulinkFind Out What's NewSee What Industry Experts Are DoingExplore MATLAB and Simulink in AcademiaContentsRegisterTimezonesKeynoteHope to See You ThereRegisterYou can register online here.TimezonesThere are two timezones for the conference, one for the Americas (with four sessions in Spanish), and one for India/Europe.KeynotePlease be sure to attend Roy Lurie's keynote entitled "Embracing Technical Computing Trends with MATLAB: Accelerating the Pace of… 
Integer Programming and Hyper Sudoku
14 Mar 2014  9:53 amI'd like to introduce this week's guest blogger Alan Weiss. Alan writes documentation for mathematical toolboxes here at MathWorks.Hi, folks. While I have not written a blog post for Loren before, if you use Optimization Toolbox™ or Global Optimization Toolbox then you might have read my work.I am excited to describe how to use a new solver. Beginning with Release 2014a, Optimization Toolbox has mixedinteger linear programming. The intlinprog solver attempts to solve problems with linear objective functions, linear constraints, and (this is the new part) the constraint that some… 
Arithmetic Associativity – Not So Fast
26 Feb 2014  7:07 amArithmetic is associative, right? Well, in the world of paper and pencil, where you can often do calculations exactly, that can be true. However, in the computing world, where real numbers can't always be represented exactly because of working with finite precision datatypes, it turns out that you can't depend on the arithmetic to behave the way you were taught in grade school.ContentsLet's Do Some MathLet's Try Another ExampleHave You Rewritten Expressions to Get Better Accuracy?Let's Do Some MathSuppose I want to check the following:$$ \sqrt {2} = 2/\sqrt {2} $$I can do this analytically… 
Double Integration in MATLAB – Methods and Handling Discontinuities, Singularities, and More
12 Feb 2014  7:06 amIn our recent post, Mike Hosea and I talked about adjusting both the absolute and relative tolerances for getting more accurate results when calculating a double integral. Today we'd like to talk about choosing the method of integration as well as which order to choose for the first dimension (direction) of integration.ContentsSet the StageChanging the Order of IntegrationSingularitiesCan You Take Advantage of these New Integration Routines?Set the Stageintegral2 has, at present, two different integration methods, 'tiled' and 'iterated', not counting the 'auto' method that chooses between…

Homeschool Math Blog

Giveaway  Math Mammoth!
15 Apr 2014  7:50 amIt is time for a giveaway for my own products (Math Mammoth)! There will be 17 prizes! The "grand prize":ONE (1) winner will get Math Mammoth All Inclusive bundle  either a download or a CDTWO (2) winners will get Math Mammoth Light Blue Series bundle  either a download or a CDFOUR (4) winners will get Math Mammoth Blue Series bundle  either a download or a CDTEN (10) winners will get one grade level of Math Mammoth Light Blue series  download  the grade level is chosen by each winner.The winners will be chosen by a random number generator. Something SPECIAL This giveaway is COUPLED with… 
Fraction lessons updated
2 Apr 2014  11:18 amThese fraction lessons on my site have been updated! They are complete lessons with varying exercises and word problems, and give you a great preview to my books Math Mammoth Fractions 1 and Math Mammoth Fractions 2.Understanding fractionsA fractional part of group Mixed numbersFractions to mixed numbers and vv.Adding like fractionsEquivalent fractionsAdding unlike fractions 1Adding unlike fractions 2: Finding the common denominatorAdding mixed numbersSubtracting mixed numbersSubtracting mixed numbers 2Measuring in inchesComparing fractions Simplifying fractionsMultiply fractions by… 
Giveaways at Educents
1 Apr 2014  1:26 pmEducents is celebrating their 1year anniversary... with a SLEW of giveaways! You will want to see this  dozens on giveaways on the same page (including one for Math Mammoth)! http://www.educents.com/educents1yearanniversary/ 
Grading tests and math homework
31 Mar 2014  7:27 amA few days ago I got a question from Jennifer concerning GRADING a child's math work, and I think it's a good question! How do recommend that parents grade when using Math Mammoth? Should I score every assignment? Or just tests? Before we pulled our children out of public school, only tests were being counted for their grade. What do you recommend? Thanks Jennifer I don't actually give any exact grading recommendations regarding Math Mammoth but leave it up to parents/teachers. I do include a grading rubric for the tests, but that's all.Personally, I feel that grading needs to be such that it… 
The missing $1 puzzle and more
27 Mar 2014  4:56 pmHave you ever encountered this wellknown puzzle about the missing $1? Three people rent a room at $30. They pay $10 each and go up to the room. The owner realized he charged too much and it was only supposed to be $25. He sends the bell hop up with the $5. Each of the people keeps $1 and they give the bellhop $2 as they can't share it. So now each person has paid $9 for the room (total $27) and the bell hop has $2... where is the other $1??? See the solution to this and find many more puzzles on my new page of favorite challenging…

About.com Mathematics

Easter Egg Hunt
17 Apr 2014  11:00 amAre you read for a quadratic equation word problem that relates to Easter? I can't think of anything more entertaining to do this Easter that links the holiday with Math! Jennifer Ledwith provides us with this entertaining set of questions for a fun filled 'mathy' Easter. See the exercise questions here. (All questions are supported with answers.) 
Measures of Central Tendancy
9 Apr 2014  8:48 amThis concept is taught as early as the 3rd grade and refers to the law of averages. When the term average is used, most of us mean the 'mean' average. However, there are other averages which are the median and the mode. If you are looking for a 101 on the Mean, the Median and the Mode, you'll find a quick overview here....Read Full Post 
Beginning of Base 10
5 Apr 2014  5:52 amBase 10 concepts begin in Kindergarten. At this early age, base 10 refers to the ability to understand that in a number like 12, the one represents 1 ten or 10 ones, it no longer is the same as 1 when 1 is in isolation. It is also showing the ability to count onward when 10 is recognized, looking at a group of 10 and automatically knowing to count up to determine how many there are when there is a group of 10 and 5 more or 6 more....Read Full Post 
Best Graduate Level Math Programs
2 Apr 2014  11:43 amAre you ready to move on to a graduate degree in math? Whether you're looking to pursue graduate level in Algebra, Number Theory, Algebraic Geometry, Analysis, Applied Math, Discrete Math, Topology, Logic or Geometry, you might just find this list of the top schools to pursue graduate level math to be quite helpful. You'll find score levels and useful information to help you guide your decision....Read Full Post 
Algebraic Reasoning in Kindergarten?
30 Mar 2014  1:53 amWhen you think of algebraic reasoning, I'm sure that kindergarten is the last thing on your mind. However, algebraic reasoning occurs as early as kindergarten and is certainly one of the benchmarks in the Common Core Standards. This week, I've written an article about how to address subtraction to five, addition to 10 and what it means to reason algebraically in kindergarten. The strategies in this article address K.0A in the Common Core Standards....Read Full Post

Let's Play Math!

Reblog: Putting Bill Gates in Proportion
17 Apr 2014  4:34 pm[Feature photo above by Baluart.net.] Here’s a blast from the Let’s Play Math! blog archives: Seven years ago, one of my math club students was preparing for a speech contest. His mother emailed me to check some figures, which led to a couple of blog posts on solving proportion problems. I hope you enjoy… Putting Bill Gates in Proportion and Bill Gates Proportions II Putting Bill Gates in Proportion A friend gave me permission to turn our email discussion into an article… Can you help us figure out how to figure out this problem? I think we have all the information we… 
Do You Blog About Math?
14 Apr 2014  1:50 pmby Mike Licht, NotionsCapital.com It’s carnival time again. Activities, games, lessons, handson fun — if you’ve written a blog post about math, we’d love to have you join our Math Teachers at Play (MTaP) math education blog carnival. Posts must be relevant to students or teachers of schoollevel mathematics (that is, anything from preschool up through firstyear calculus). Old posts are welcome, as long as they haven’t been published in past editions of this carnival. Click here to submit your blog post. Browse all the past editions of the Math Teachers at Play blog… 
Reblog: The Handshake Problem
3 Apr 2014  5:49 am[Feature photo above by Tobias Wolter (CCBYSA3.0) via Wikimedia Commons.] Here’s a blast from the Let’s Play Math! blog archives: Seven years ago, our homeschool coop held an endofsemester assembly. Each class was supposed to demonstrate something they had learned. I threatened to hand out a ten question pop quiz on integer arithmetic, but instead my prealgebra students voted to perform a skit. I hope you enjoy… Skit: The Handshake Problem If seven people meet at a party, and each person shakes the hand of everyone else exactly once, how many handshakes are there in… 
Reblog: In Honor of the Standardized Testing Season
24 Mar 2014  11:16 am[Feature photo above by Alberto G. Photo right by Renato Ganoza. Both (CCBYSA2.0) via flickr.] Here’s a blast from the Let’s Play Math! blog archives: Quotations and comments about the perils of standardized testing, now part of my book Let’s Play Math. I hope you enjoy… In Honor of the Standardized Testing Season The school experience makes a tremendous difference in a child’s learning. Which of the following students would you rather be? I continued to do arithmetic with my father, passing proudly through fractions to decimals. I eventually arrived at the… 
Math Teachers at Play #72 via Christy’s Houseful of Chaos
20 Mar 2014  9:15 am[Feature photo above is 72 Pencils by fdecomite via flickr.] Math Teachers at Play is a traveling blog carnival. It moves around from month to month, and the March edition is now posted at Christy’s Houseful of Chaos. What a fun list of math posts to browse! This is the 72nd Edition of the Math Teachers at Play (MTaP) blog carnival! The number 72 is a Harshad number in number bases from binary up to but excluding base 13. Harshad numbers are numbers that are divisible by the sum of their numbers. They are basedependant. In binary 72 is expressed 1001000. Add the digits together to get…

ChapterZero

Eigenvector twocondition number for a product of PSD matrices
7 Apr 2014  9:31 amI’m pushing to submit a preprint on the Nystrom method that has been knocking around for the longest time. I find myself running into problems centering around expressions of the type \(B^{1}A\), where \(A, B\) are SPSD matrices satisfying \(B \preceq A\). This expression will be familiar to numerical linear algebraists: there \(B\) would be a preconditioner for a linear system \(A x = b,\) and the relevant quantity of interest is the spectral radius of \(B^{1} A\). It’s not hard to show that the spectral radius of this product is at most 1… but instead, I’m… 
Canonical Correlation Analysis (CCA)
7 Apr 2014  9:20 amI am not completely satisfied with the expositions of CCA that I’ve come across, so I decided to write one that reflects my own intuition. CCA is useful in the case where you observe two random variables that are both noisy linear functions of some underlying latent random variable, and you want to use this fact to help you guess the latent variable. Formally, assume \[ x = T_X z + n_x, \quad \text{ and } \quad y = T_Y z + n_y, \] where, without loss of generality, we assume that the entries of \(z\) are uncorrelated and unit variance. Here \(T_X\) and \(T_Y\) are matrices whose image… 
Decision time: MacPorts vs Homebrew vs Fink
7 Mar 2014  8:12 pmMy work macbook pro recently crapped out on me during an update of the OS (apparently something has a tendency to go wrong with the video card or its driver or something similar during this particular update for this particular model … sigh) so I’ve had the joy of reinstalling my personal ecosystem of software again. One of the crucial decisions for me is whether to use MacPorts, HomeBrew, or Fink to allow me to manage the installation of nontrivial Unix packages. This post is really just to remind myself that at this goround, I chose MacPorts because of these posts. 
Adagrad and projections onto ellipsoids
6 Feb 2014  10:16 pm((Caveat! I am not sure the manipulations done in this post are correct, but the gist is certainly there.)) One of my favorite optimization techniques is Adagrad, a firstorder technique that approximates the Hessian by using all the gradients up to that point. It calls for updates of the form: \[ x_{t+1} = \Pi_{\mathcal{X}}^{G_t^{1/2}} (x_t  \eta G_{t}^{1/2} g_t), \] or more practically for highdimensional problems, \[ x_{t+1} = \Pi_{\mathcal{X}}^{\text{diag}(G_t)^{1/2}} (x_t  \eta \text{diag}(G_{t})^{1/2} g_t). \] Here, \(g_t\) denotes the gradient at step \(t\), \(\eta\) is a fixed… 
Back of the envelope calculations of how fast your computer can do linear algebra operations
23 Jan 2014  3:28 pmLet’s talk about CPU speed, practically. By practically, I mean, how fast can your CPU do linear algebra operations. And by linear algebra operations, I mean matrixmatrix multiplies. First, you need to calculate how many FLOPS your computer can do. The following formula comes in handy: \[ \text{nFLOPS} = \text{cores} \cdot \frac{\text{clock cycles}}{\text{second}} \cdot \frac{\text{FLOPS}}{\text{cycle}}. \] You probably already know the number of cores in your computer, and the number of clock cyles. The interesting thing here is the number of FLOPS per cycle: this depends on the…

Computational Complexity

Announcements
18 Apr 2014  8:25 amTime for a short rundown of announcements. STOC will be held May 31June 3 in New York City. Early registration and hotel deadline is April 30. Student travel support requests due by this Monday. The newly renamed ACM Conference on Economics and Computation (EC '14) will be held in Palo Alto June 812. Early registration deadline is May 15. Hotel deadline is May 19th but the organizers suggest booking early because Stanford graduation is June 13. The Conference on Computational Complexity will be held June 1113 in Vancouver. Local arrangements information will be posted when available. 
Should you reveal a P = NP algorithm?
17 Apr 2014  5:13 amA reader asks What would you do if you could prove that P=NP with a timecomplexity of n2 or better... moreover, would you publish it? There are all these statements of the good that could come of it. But how would the government react in its present state? Would it ever see the light of day? How would a person be treated if they just gave it away on the internet? Could a person be labeled a threat to national security for giving it away? I consider this a completely hypothetical and unlikely scenario. If you think this applies to you, make sure you truly have a working… 
Factorization in coNP in other domains?
13 Apr 2014  7:40 pmI had on an exam in my grad complexity course to show that the following set is in coNP FACT = { (n,m) : there is a factor y of n with 2 \le y \le m } The answer I was looking for was to write FACTbar (the complement) as FACTbar = { (n,m)  (\exists p_1,...,p_L) where L \le log n for all i \le L we have m < p_i \le n and p_i is prime (the p_i are not necc distinct) n =p_1 p_2 ... p_L } INTUITION: Find the unique factorization and note that the none of the primes are < m To prove this work you seem to need to use the Unique Factorization theorem and you need that PRIMES is in NP (the… 
Favorite Theorems: Extended Formulations
9 Apr 2014  2:24 pmThe first couple of favorite theorems took place at the beginning of the last decade, but recent years have brought exciting results as well, such as the limitations of using linear programs to solve hard problems. Linear vs. semidefinite extended formulations: exponential separation and strong lower bounds by Samuel Fiorini, Serge Massar, Sebastian Pokutta, Hans Raj Tiwary and Ronald de Wolf, STOC 2012 (ArXiv). The matching polytope has exponential extension complexity by Thomas Rothvoß. To appear in STOC 2014. It all started with a paper by E.R. "Ted" Swart (the Deolalikar… 
How free is Randomness?
7 Apr 2014  5:50 amMatthew Green had a great post on the topic how do you know a random number generator is working. Gee, I just look at the sequence and see if it LOOKS random. Probably not the best idea. Actually people often found pattersn where there aren't any. Reminds me of a the following apocryphal story which would have to have taken place before everyone had a computer: A teacher assigns the class a HW assignment to flip a coin 600 times and record H's and T's. He warns them that if they just try to come up with a random sequence without flipping he will know. Sure enough, a few of them had…

Natural Blogarithms

Review Activity Ideas
29 Mar 2014  12:11 pmDuring the Teacher Quality Grant class today, we began preparing for the PostTest that will take place in two weeks. Class participants shared a variety of ways that they conduct reviews in their junior high and high school classrooms. This group of teachers shares some very interesting games that they have used to engage students and get them more excited about math. Here are the ideas they shared: Jeopardy®: This is a classic game where students compete for points by selecting a category and point value. The question (or answer) is revealed and they are given the opportunity to buzz in… 
How to Insert Equation Numbers in Word 2010
3 Mar 2014  10:46 amHow to Insert Equation Numbers in Word 2010. In most cases, I’m using LaTEX to typeset my math docs but when I am in a hurry or I’m having my students write up reports, I need to use Word. Here’s a quick demo for adding equation numbers in word that autonumber and can be referenced in the text. 
Graphs of Sine and Cosine Functions
3 Mar 2014  7:52 amI just posted a new video to the Trigonometry Lecture Series. This is the 11th in the series. In this video, I cover how to identify properties of sine and cosine graphs, determine the amplitude and period of sinusoidal functions, graph the sinusoidal functions using key points, and find an equation for a sinusoidal graph. View on YouTube 
How to Insert an Excel Chart into a Blackboard Discussion Board
2 Mar 2014  8:44 pm 
New Videos in the Trigonometry Video Series
10 Feb 2014  5:46 pmJust finished uploading five new videos to my online video lecture series in Trigonometry. Here’s the first and a link to the playlist on YouTube: Link to Full Playlist Newly added: Lecture 6: Measuring Angles in Radians Lecture 7: Definition of Trigonometric Functions Lecture 8: Trig Values of Special Families of Angles Lecture 9: Properties of Trig Functions Lecture 10: Basic Identities of Trig Functions

eon

“Gods” make Comeback at Toyota
10 Apr 2014  8:30 pmis the headline of this bloomberg piece that reports the strange phenomena that human beings are replacing robots in the manufacturing lines. The point is that by automating some of these production process, much of the skill learnt by the human worker is lost. Without these knowledge, the humans cannot innovate and improve on the current process. I see a close parallel between this and how students are losing their mathematical/computational ability because they are doing all their calculations on a calculator. Sure, if all the mathematics that you will do in future is to add some numbers on… 
Come Together
8 Apr 2014  6:22 pmis not the beatles song but the title of episode 16 of a tv program called discover science. I happened to catch it on local tv and the combination of quirky Japanese humour and the clever introduction to mathematics and science caught my attention. A preview of the episode is available at the above link but you need to watch the whole episode to find the link to parabolas. 
Mathematics and poetry
4 Apr 2014  2:59 pmA nice article by Ornes on slate and a paper by Glaz. My favourites has to be the Fermat Last Theorem Poetry Challenge which I have read about previously elsewhere. Here’s one entry by E. Howe, H. Lenstra, D. Moulton: “My butter, garcon, is writ large in!” a diner was heard to be chargin’. “I HAD to write there,” exclaimed waiter Pierre, “I couldn’t find room in the margarine.” 
Maths & Fashion
20 Mar 2014  3:21 pmThat headline caught my eye and earned the newspaper article a more detailed look. It’s about a sub brand from Issey Miyake called 132.5, which apparently stands for 1 piece of material which forms a 3d dress but yet can be folded flat into 2d. The meaning of the .5 wasn’t that clear to me. Fashion’s not my thing but this is certainly cool enough to merit a link. http://www.isseymiyake.com/en/brands/132_5.html 
Advice to Young Mathematicians
27 Jan 2014  8:25 pmThe Princeton Companion to Mathematics contains a short section of sound advice to young mathematicans by Sir Micheal Atiyah and others. It is certainly worth reading. The section can be downloaded from here.

mathematics « WordPress.com Tag Feed

Missing Math: A Number Mystery
17 Apr 2014  6:00 pmMissing math : a number mystery MATHEMATICS (K2) Missing Math: A Number Mystery by Loreen Leedy ATOS 2.7 460L Essential Question: Why are numbers important? Unit Summary: Students will examine the essential question, “Why are numbers important?” They will work in groups to locate numbers from five books from an assigned section of the library based on the Dewey Decimal System. The groups will find books holding specified number criteria and will fill out a chart to show the numbers they have located. They will use their numbers in number sentences to show greater and less than… 
Arthur Benjamin: Lightning calculation and other "Mathemagic"
17 Apr 2014  5:17 pmSpeaker Arthur Benjamin is an American mathematician known for his stage and TV shows in mathemagic – showing off his skill in rapidly performing calculations with large numbers. He has published multiple books to teach these skills to others. Summary Arthur combines his love of magic and maths to do some extremely quick calculations – squaring and multiplying random 23 digit numbers instantly as they are called out by the audience. 4 digit numbers took a little longer, but still within a few seconds. His next ‘trick’ was to ask the audience to multiply a known 4… 
In what manner do mathematical objects exist?
17 Apr 2014  3:45 pmI mean it cant really be said they don’t exist, as many of our models of the physical world use them, unless of course we take a uselessly literal and physical interpretation of existence. But in what sense do things like parabolas and circles and functions and cones and such actually exist? One interpretation is that of plato; the idea that mathematics exists on some higher plane which we ‘dip into’ now and then so as to better inform our perceptions of the physical world. However, this raises more questions than it answers; where is this plane of existence inhabited… 
Math Part Two  Palindromes and Passwords
17 Apr 2014  2:55 pmI’m a Math Nerd. I confess. I like numbers. It’s a weakness. I liked Math so much that I 
Logic
17 Apr 2014  1:01 pmIn the true fashion of my exploratory spirit, I’ve decided to give the proper definition of ‘Logic’ a little try. Grab pen and paper, and here we go. Etymology First, what I always like to do is to look up the word itself. Any object that we occupy ourselves with that has a name, will have some origins in how our forefathers may have encountered it. Therefore, the etymologic description of an object’s name can already hint us towards what it may describe. – In the case of ‘Logic’, I happen to know by rote that it ultimately derives from the Old Greek…

MathNotations

A Common Core Alg Activity Using Desmos  Piecewise Linear Functions and Squares
20 Apr 2014  4:29 amThis is my first attempt to use Desmos, the outstanding free online graphing calculator (and a free iPad app). I'm sure many of you have been utilizing this powerful resource. There are already many available teacher samples you can use. Let me know if you can view the graph (you may have to adjust the window slightly). More importantly, what do you think of the activity and do you see its potential for deepening understanding of algebra? If interested in purchasing my NEW 2012 Math Challenge Problem/Quiz book, click on BUY NOW at top of right sidebar. 175 problems divided… 
Another Common Core Rant  not a video...
15 Apr 2014  5:31 amWhile I agree with the concerns of many parents that overtesting is damaging to children and subverts the purpose of education, I don't believe that the Common Core has set the bar too high, at least in math, my area of expertise. I know from direct experience with children that we can expect far more thinking of them than is commonly held. That is the Core Belief of my blog. The problem is that teachers have not received the necessary preparation and the testing has been rushed and lacking in quality control. We're trying to set the bar higher for children without raising the bar… 
Developing Fraction Sense Using Egyptian Fractions
5 Apr 2014  12:01 pmThis MathCast describes a procedure for writing proper fractions as a sum of unit fractions, e.g., 5/6=1/2+1/3. This exploration is appropriate for Gr5 on up.A simplified form of the Greedy Algorithm.Watch "Developing Fraction Sense Using Egyptian Fractions" on YouTube: http://youtu.be/ulb6E4OcQ8g I'm experimenting with embedding these MathCasts directly into my blog post, however, the audio may not come out right. May work on your computer but not your tablets or smartphones. Please let me know. If there is a problem you can just click on the link to YouTube. VISIT ME DAILY ON TWITTER AT… 
A DataBased Percent Problem for the New SAT and Common Core
30 Mar 2014  3:07 pmThe MathCast below is a more sophisticated % problem which requires processing several pieces of data expressed in percent form. Students have to make sense of the information and develop a model to represent the data. Both a tree model and a table/spreadsheet approach are demonstrated. These are the kinds of databased applications which will become a central theme of the newer assessments from PARCC, SBAC and the College Board. Sorry, you'll have to watch the video to see the problem but I'll give you a glimpse: 70% of the lefthanded students surveyed were boys... Watch… 
40% of 9th graders play sports...Math Challenges for the Old/New SAT and the Common Core
24 Mar 2014  5:07 amDavid Coleman of the College Board has stated that ratios, percents, etc., will be an important focus of the new SAT, particularly in an applied setting.The MathCast below demonstrates a classic mediumhard percent word problem which should continue on all of our "new" assessments. Watch "40% of the 9th grade... Percents,New SAT and…" on YouTube40% of the 9th grade... Percents, the New SAT and…: http://youtu.be/WjNQ8VHhD4U I encourage all my readers to offer constructive criticism re both the content and the technology of these videos and suggest…

Neoformix

Markham Winter of 2014
1 Apr 2014  4:30 amWinter has finally ended in Markham where I live and it has seemed a very long and cold season this year. I decided to take a look at the weather data from Environment Canada and see whether my impression is supported by the data. The result is the graphic below. Click on it to see a larger version. Yes, 2014 was the coldest winter in Markham since 1994. We had an average temperature during the winter of 8.2 C this year and in 1994 it was 9.2 C. Both last year and especially 2012 were warmer than usual so it likely felt that much worse in comparison. We also had the 4th most snow in the… 
Toronto Visible Minorities
27 Sep 2013  4:30 amToronto is the most multicultural city in the world. According to the 2011 National Household Survey, 46% of the population were foreignborn immigrants and 47% are members of a visible minority. (ref) These immigrants come from a wide variety of places across the globe and their diversity makes the city a truly remarkable place. I have created a Dot Map that shows a single point for every person in the Toronto area, coloured by visible minority status. There are 5,700,628 in all and they are positioned at their place of residence and coloured based on the information from the 2011 census and… 
Toronto 311 Visualization
6 Sep 2013  4:20 amThe calls people make into the 311 service line in Toronto give an interesting glimpse into the pulse of the city. The City of Toronto makes this data available through their Open Data initiative. I did some analysis and design work with it to produce a visualization for illuminating timebased patterns during 2012. The visualization is a set of small multiple calendar heatmaps, one for each data series. The one shown above is for reports about 'long grass and weeds'. I was inspired to use this visual form by this example: Vehicles involved in fatal crashes by Nathan Yau. I experimented with… 
Visual Book Selector
8 May 2013  5:00 amOne common pattern I see in many interactive applications is to support a person who is selecting a few items from some larger set. Often these items have various characteristics that the person wants to use in some way to guide their selection process. The characteristics can be numeric quantities, dates, categories, or names of things. Showing all the items in a list and allowing the person to sort by one of the attributes is often a decent default solution. In other cases it's more useful to consider multiple attributes at a time during the selection process. Maybe you want items that are… 
Star Wars Movie Fingerprints
27 Mar 2013  4:35 amRecently YouTube had a video that showed all six Star Wars movies at once. They were placed in a 2 by 3 matrix and had an audio track of all the movies superimposed. It was an interesting experiment that has since been removed based on copyright grounds. Before it was removed I was able to do some simple analysis on the video and extract some details of the individual episodes of the Star Wars series. Basically, I produced something very similar to a classic work called Cinema Redux™ by Brendan Dawes, done in 2004. Each individual movie in the series was reduced to a collection of small…

Institute for Mathematics and Computer Science

What Does It Mean to be Genuinely Good at Math?
17 Apr 2014  5:35 amHave you seen the latest video of a young child reciting multiplication tables or the digits of pi? Or maybe you know a kid who has always gotten straight A’s. Pretty neat, but does it equate to being genuinely good at math? No. Bright students often do well in school with little or no effort. And an airtight memory facilitates excellent grades, especially when those grades depend on regurgitating information that’s already been provided. Being genuinely good at math is more about having a deep understanding of how and why things work. It also means being able to take that… 
From Public School to the Ivy League
19 Mar 2014  10:00 pmThe following excerpt is from the new book by Mandee Heller Adler, From Public School to the Ivy League: How to get into a top school without top dollar resources, which is available at Amazon.com. Ms. Adler is the founder and principal of International College Counselors, a Floridabased firm that provides expert strategies for admission to undergraduate colleges, graduate programs, business schools, law schools, medical schools, dental schools and other postgraduate schools. From Chapter 4: Writing Essays … ANSWERING THE QUIRKY QUESTIONS In recent years, a number of colleges have… 
IMACS Math Academy for Broward County Middle School Students
19 Feb 2014  10:00 pmThe IMACS Math Academy is an intensive oneweek program for exceptional students currently attending middle school in Broward County, Florida. Broward County, Florida students currently attending grades 68 are invited to apply to the IMACS Math Academy, an intensive oneweek program designed to stimulate talented students’ interest in mathematics beyond the traditional classroom. There is no cost to attend the IMACS Math Academy! There are two scheduled sessions. The first will be held March 24 – 28 during Spring Break. The second will be held June 23 – June 27 during… 
AP Computer Science … Updating
29 Jan 2014  10:00 pmFollowing a recent review of the AP Computer Science A course and exam, the College Board has decided to replace its case study requirement with a requirement to complete a minimum of 20 hours of handson lab experiences. This change, which will take effect for the 20142015 school year, is being implemented to more effectively support student learning of core concepts in computer science. IMACS continues to follow closely all communications from the College Board, as well as discussions within the APCS community, on the forthcoming changes and will act accordingly. From the beginning,… 
Letters to a Young Math Teacher
1 Jan 2014  10:00 pmThe following letter is extracted from the new book, Letters to a Young Math Teacher, by Gerald Rising and Ray Patenaude, which is available from Amazon.com and other sources. Gerry Rising is Distinguished Teaching Professor Emeritus at State University of New York at Buffalo where he cofounded the university’s Gifted Math Program for highlyqualified regional students in grades seven through twelve. Gerry Rising was for many years associated with IMACS activities and is a strong supporter of our work. Letter Seventeen: A Bag of Tricks Paul Rosenbloom enjoyed an international…

Maths Tips From Maths Insider

How to Solve a Physics Problem (FUNNY!) plus Mental Math Tips
4 Apr 2014  8:14 amI saw the comic strip below last week on Facebook by the funny folks at Saturday Morning Breakfast Cereal (SMBC), and spent a good few minutes crylaughing (is that a thing?) Even my daughter in the midst of wrangling with Quadratics in preparation for a math test, joined in. You see, even for seasoned math teachers, math lovers and professional scientists and mathematicians, arithmetical errors are all too common when problem solving. As part of my role as Instructor for International Students at Tabtor Math, I was given 5 math worksheets at Grade 5 and 6 level to test and report… 
Check out These Challenging Online Math Tools for Gifted Kids
3 Dec 2013  1:28 amThis is a guest post by Joseph Rodriguez While many educators agree that it is essential to improve the quality of math education in our public schools, a debate persists about how it should be done. Do we work with the students who are struggling, so that they can do better? Or do we push the students who are excelling, so they can move on to even greater things? Budgets are tight and many schools are pushed to decide one path or the other. Fortunately, many online resources can challenge gifted math students with new coursework and an outlet for their ingenuity. Here’s what you… 
Holiday Math and More
28 Nov 2013  1:12 amIf you’ve read my Tabtor vs Kumon blog post a few months back, you’ll know that I’ve been working with Tabtor Math, the personalized iPad based math program. I’m Tabtor’s instructor for many of their international students, and I’m also recording instructional videos which accompany each of the Tabtor worksheets as well as writing articles for their blog. As a result, It’s been a bit quiet here at Maths Insider but after the holiday I’ll hopefully be back here with a vengeance. I’ve still got plenty of ideas to share with you on Maths… 
Educator.com – A Great Math Program for Self Motivated Teens
17 Oct 2013  6:11 amThis is a guest post by Stephanie from houstonnanny.com. For those who need a math education program that can allow high school students to work at their own pace, Educator.com may be what you’re looking for. Subject material from basic math skills to more advanced forms of linear algebra are present and ready for you to explore, as well as science and computing courses. While there are some materials that can be tested for free, a subscription is needed in order to take advantage of the courses at this website. How Detailed are the Courses? Each course is divided among several… 
Pretend Mind Reading – A Way Of Learning Algebra by Lawrence Ball
30 Sep 2013  11:49 pmThis is a guest post by Lawrence Ball Here’s a way to pretend you read someone’s mind. It’s also a way to get familiar with algebra. I want you to do some calculations for me, are you ready? Think of a number between 1 and 5, don’t tell me what it is, but remember it for later. OK? Got one? Now double it. OK? Now add 10. Now halve it (or divide it by 2 – same thing) Now take away the number you started with. Your answer is 5. Well it should be, if it isn’t you made a mistake! Lets try another one. Think of a number between 1 and 5 The reason I keep…

MathFour

Learning is Hard – And Scary!
26 Mar 2014  4:43 amI’m learning how to write a business plan. And it’s hard! But I’m not just doing it to see if I can. There’s real meaning to learning this: I’m writing the business plan for Math Philanthropy, Inc. And when I’m done, I’ll submit it into a business plan competition. In this process, I’m discovering a few things: I’m scared that what I write will sound dumb. I worry that I’m not putting in enough. I wonder if I’m putting in too much. And what if everything I write is wrong? Sound familiar? If you’ve ever learned math (or… 
Fibonacci Valentine
29 Jan 2014  9:15 amPart of Wordless Wednesday… It’s time for math and love to intersect again! Want the instructions to build one yourself? Check it out over on cwist! And don’t forget to share on Twitter, Facebook and Pinterest! 
Football vs. Furniture – A Tale of Probabilities
22 Jan 2014  3:45 pmWe have a local legend, icon and hero here in Houston, where I live. His name is Mattress Mack and he owns a furniture store. Okay, his real name is Jim McIngvale and his furniture store is a little more than just that. It’s THE furniture store. He’s built this amazing empire of furniture sales doing crazy, fun and remarkable things. This past weekend was no different. Gambling with Football and Furniture I got an email on Friday – two days before the AFC and NFC championship football games. They were running a(nother) bizarre promotion. Here’s the gist of the rules: 1. Purchase… 
Symmetry in Christmas Ornament Crafts
22 Dec 2013  10:38 pmThe sweet ladies at Blinds.com got me into another fun round of crafty goodies – this time with symmetry! Unfortunately, I’m stuck in a hospital room with limited supplies. (No biggie – just fixing to give birth.) I did all of the following with tinsel cord, some blinds samples and a tiny pair of scissors. Christmas Tree This one looks like a Christmas tree. It was my first attempt and it turned out pretty good! Notice the vertical symmetry. Ribbon Candy I noticed that a single blind sample like this did neat things, so I put two together. They turned out looking a lot like… 
Christmas Ornament Craft with Fractions!
16 Dec 2013  3:00 amThis weekend I had the privilege to collaborate with Heather Sanders, amazing homeschool teacher and blogger. She let me spin her Christmas tree debacle into a fun fraction experience over at Pioneer Woman’s homeschool blog. In the writing of that post, I was inspired to create this Christmas ornament craft. You can use these ornaments to describe the fractions happening in your Christmas tree. Print them on card stock and let your students find the fractions. Then have them write them down and color the ornaments to put on the tree! Supplies Scissors Hole Punch Sharpie Crayons, colored…

CSE Blog  quant, math, computer science puzzles

Value of Pi  Estimation using Dice
30 Mar 2014  5:21 amSource: Asked to a friend at Goldman Sachs Quant Interview Problem: Estimate the value of pi using a dice 
(2n choose n) is never a perfect power
15 Feb 2014  11:22 pmSource: Cute problem sent by Sudeep Kanath Problem: Prove that (2n choose n) is never a perfect power 
Coin Problem  Wolfram Mathematica Puzzle
10 Feb 2014  3:29 amSource: The super awesome puzzle blog by Gowtham Kumar  Puzzle Tweeter  Coin Problem who got it from Wolfram Mathematica Problem: Suppose you have an infinite stock of $a bills and $b bills such that g.c.d(a,b)=1. Find the largest amount of money (integer) that cannot be represented using $a and $b denominations. Shameless plug: If you have not done it already, please like / +1 / follow on: Quora, Twitter, Facebook, G+ 
Determinant of Matrix (1711)
24 Dec 2013  12:53 amSource: Mailed by Sudeep Kamath (EECS PhD Student, UC Berkeley, EE IITB 2008 Alumnus) Problem:A is a 300 x 300 matrix with 17 on the diagonal, and the rest of the entries being 11. What is det (A) ? 
Open Ended Search Problem
20 Dec 2013  8:50 pmDisclaimer: It is a made up problem. Not to be attempted by light hearted. Problem: I have a 300 word text. I have a large list of indexed strings (Length of string ~ 20, Number of strings ~ 1M). I need to figure out phrases in the 300 word text that match exactly to one of the strings in the large list of strings I have. A naive approach: Taking all 45000 (300 C 2) phrases, search in the large list of strings. Can we do better than this? We need to minimize calls to list of indexed strings!

Puzzle Games  Challenging Puzzles For You

Puzzle #57 : The number whose letters are in alphabetical order.
27 Mar 2014  6:22 amQuestion : Can you find a number whose English name has its letters in alphabetical order? Answer : Click Here 
Puzzle #56 : Find the number.
26 Mar 2014  1:00 amQuestion : What number gives the same result, when it is added to 3,and when it is multiplied by 3?Answer : Click Here 
Puzzle #55 : Find my parking lot number.
25 Mar 2014  3:04 amQuestion : What is the number of the parking lot, where my car is parked?Hint : It's an observation puzzle. Answer : Click Here 
Puzzle #54 : Solve the Anagram
19 Mar 2014  12:32 amQuestion : Solve the anagram: Spa RegionHint : It's a Country NameAnswer : Click Here 
Puzzle #53 : Anagrams : The most popular word scrambler puzzles.
18 Mar 2014  12:44 amAnagrams are very old and popular word puzzle games. Anagram is a word scrambler game.In anagrams, you will get a scrambled word. Your aim is to find the correct word using all the letters in the anagram game. The below word puzzle is an example anagram.Example Question : What does the following anagram mean?HAS METExample hint : It's a river name.Answer : THAMES.Ok, let's play the real game now.Question : What does the following anagram mean?COLD ANTSHint : It's a country name.Answer : Show Me

PlainMath.net

SBIPO Study Plan: Reasoning section
20 Apr 2014  12:41 amSBIPO MCQ exam is divided into four sections:General Awareness  50 quesData Interpretation  50 quesReasoning  50 quesEnglish  50 quesToday I will cover only Reasoning section thoroughly and soon I will cover other sections too. For SBIPO and SSC too, reasoning is a scoring subject. So you should leave this section and try to cover its topics first and then proceed to other sections. ReasoningIn reasoning section, the major part is of verbal topics like inference conclusion, sullogism, data sufficiency etc. From last few years the weightage of section is almost same. Just little changes. 
Important Questions of Mensuration: Quantitative Aptitude
9 Apr 2014  4:46 amMensuration is one the toughest topic of quantitative aptitude section. The only thing is it takes time to analyze the question. Rest is just clarification and formula learning ability of candidate. This chapter is a part of quantitative aptitude section of SSC CGL and SBI PO. Today I will discuss some questions related to basic terms of mensuration.Examples with Solution Example1: What will be the area and perimeter of triangular plot whose sides are 17 m, 8m and 15m long?Solution: Firstly, we will check which kind of triangle it is.Since, `8^2 + 15^2 = 17^2`....... (`H^2 = P^2 +… 
Syllabus of SBIPO Recruitment 2014
4 Apr 2014  7:29 amSBIPO exam includes both multiple type questions and descriptive paper. Total marks including descriptive exam is 250.Objective type Paper : 200 MarksDescriptive Paper: 50 MarksObjective type exam consists of four sections:English LanguageData Analysis and InterpretationReasoningGeneral Awareness, Computers and Marketing. Descriptive ExamDescriptive exam is of half an hour and it can be about anything discussed Essay writingLetter writingParagraph writingPrecise writing English sectionThis section basically covers comprehensions, faulty sentences, jumbled sentences, closed passages etc. 
SBIPO Recruitment 2014 notification out
4 Apr 2014  4:23 amSBIPO Recruitment 2014 notification out. All the best to all the candidates.Important datesOnline registration : 07.04.2014Payment of fees Online : 07.04.2014 to 25.04.2014 Payment of fees Offline : 07.04.2014 to 25.04.2014 Eligibility criteriaAll graduates and third year students from recognized university are eligible.Age range: 21 30 yearsDetails official notification: hereSoon, I will post syllabus, study plan and strategies to crack this exam. 
How to prepare for Quantitative Aptitude section
27 Mar 2014  1:59 amQuantitative aptitude section is one of the four sections of bank exams, SSC and others. Some candidates think that it is not possible to crack Quant section. But, I want to tell you that a perfect study plan and regularity can easily help you to score good in this section because in numerical ability questions level is moderate. Tough questions have never been asked earlier. So you just need to clear all the basics of quantitative aptitude section. Rest will depend on you time mangement.Tricks to crack Quantitative aptitude section Attempt chapters of your interestWhen you start…