• Wild About Math bloggers 1/21/11

    Updated: 2011-01-29 21:12:21
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 1 21 11 January 29th , 2011 by Sol The 1 28 edition is at Equalis Here’s last week’s edition . Welcome to another edition of Wild About Math Bloggers Alex Bellos introduces us to Lee Sallow’s fascinating work with Geomagic squares Sallow realised that you could create a much more versatile magic square , which he calls a geomagic square Instead of containing numbers , it contains shapes , and that the combination of shapes that you get in each row , column and diagonal can be pieced together to make the same master shape . Built on Facts has a nice introduction to the zeta functio n and on its relationship to prime numbers . Hat tip to Shecky James Tanton has a new

  • Join DreamBox for Wednesday’s Webinar: Google Apps for Education

    Updated: 2011-01-28 22:26:04
    Earlier this week we shared with you the good news that teachers can now access their DreamBox Teacher Dashboard in the Google Web App Marketplace! Using DreamBox Learning Connect, teachers and school administrators can securely get one-click access to their DreamBox reporting dashboard  to monitor individual student’s math comprehension and progress. Please join me on this [...]

  • Searching for the missing truth

    Updated: 2011-01-28 17:55:02
    Skip to Navigation about Plus support Plus Plus sponsors subscribe to Plus terms of use Search this site : Searching for the missing truth by Marianne Freiberger Submitted by mf344 on January 28, 2011 in continuum hypothesis Gödel's Incompleteness Theorem mathematical reality set theory Zermelo-Fraenkel axiomatisation of set theory Many people like mathematics because it gives definite answers . Things are either true or false , and true things seem true in a very fundamental way . Hugh . Woodin The fact is , however , that mathematics has been moving on somewhat shaky philosophical ground for some time now . With the work of the logician Kurt Gödel and others in the 1930s it became clear that there are limits to the power of mathematics to pin down truth . In fact , it's possible to build

  • Goodbye 29, Hello 42

    Updated: 2011-01-28 02:35:51
    I’ve been celebrating my 29th birthday for many years. Once, when I was actually 45 and wanted to have a big party, I invited everyone to the 5th anniversary of my 29th birthday. Last week my son turned 29 and I realized that it is time to drop this beautiful, prime, evil, [...]

  • Classification of numbers

    Updated: 2011-01-27 14:52:41
    Classification of numbers with an easy to read chart. This chart should help you identify easily the different types of numbers

  • DreamBox Floats on Google Apps Cloud

    Updated: 2011-01-25 17:43:44
    DreamBox Learning and Google have just announced that we’re supporting the new Google education application marketplace, with our DreamBox Learning Connect tool. Our development team has been working hard to support this new way to quickly get connected. DreamBox Learning Connect allows teachers using DreamBox Learning K-3 Math to have one-click access to their DreamBox Teacher [...]

  • Wild About Math bloggers 1/14/11

    Updated: 2011-01-25 17:42:53
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 1 14 11 January 25th , 2011 by Sol The 1 21 edition is at Equalis Here’s last week’s article . Here’s my roundup of this second week of January Carnival of Mathematics 73 is up at Walking . Randomly Maxwell’s Demon has an interesting spin on the prisoner’s dilemma , in a group . setting Last semester I offered my students 1,000,000 dollars . They turned me down . This was lucky , despite the money and glamour of academic mathematics , I do not have a million dollars . The game was simple . The class of 100 each had to write a number . The highest number won . Of course there was a catch , the prize was 1,000,000 divided by the winning number . The best outcome for

  • Tuesday Teacher Tips: Using the Open Number Line

    Updated: 2011-01-25 16:58:17
    Welcome to the Tuesday Teacher Tips series! Each week we’ll highlight teaching and learning resources, ideas to use in the classroom, as well as things to ponder as you go about your teaching day. I teach third grade, and the unit we’re currently working on is one that many students struggle with—money, specifically using mental math [...]

  • Happenings – 2011 Jan 22

    Updated: 2011-01-22 19:30:36
    Last weekend was dominated by two things… a long technical post, and a football game. I know better than to put five examples into one technical post… on the other hand, I think each one of them was a simple example. (Of course I think that; after all, I both planned and executed them.) It [...]

  • A Math Guide to the MIT Mystery Hunt 2011

    Updated: 2011-01-20 23:16:50
    As I did for 2010 and for previous years, here are math-related puzzles from the MIT Mystery Hunt 2011. Another Small Collection of Immense Integers — Large integers. Two Heads are Better than One — A logic puzzle. Worthy of Picasso — Paint-by-Numbers followed by a mathematical extraction. Unfair Cryptogram — A cryptogram. The Eternal Struggle — Something happens [...]

  • Mutant Sudoku

    Updated: 2011-01-20 23:10:20
    Tired of the same old sudoku? Here’s an opportunity to try many variations of it. Thomas Snyder and Wei-Hwa Huang wrote a book called Mutant Sudoku. The authors are both Sudoku champions. I like the book because the authors are trying to bring everyone up to their level, rather than dumbing [...]

  • Are You Attending TCEA 2011 in Austin, February 9-11?

    Updated: 2011-01-20 16:28:28
    Are you attending the TCEA 2011 Education Conference in February? If so, make sure you visit DreamBox Learning in booth 1350! We’d love to meet you, and you could win some great giveaways for your classroom. Join us in our booth for: Hourly demos Learn how DreamBox Learning provides adaptive instruction with every mouse click, and view our [...]

  • Finding the nine - solution

    Updated: 2011-01-19 17:47:57
    Skip to Navigation about Plus support Plus Plus sponsors subscribe to Plus terms of use Search this site : Finding the nine solution Submitted by mf344 on January 19, 2011 in puzzle Here is the solution of our puzzle Finding the nine Did you get it right Add new comment Home Articles Careers Blog News Packages Podcasts Posters Puzzles Reviews Constructing our lives : the mathematics of engineering What do Gollum , the new Olympic stadium that's being built in London and the quest for sustainable energy . view Do you know what's good for you Understand the maths behind health and medicine . Read the latest and join the debate view Support Plus Make a difference to mathematics view Visual curiosities and mathematical paradoxes When your eyes see a picture they send an image to your brain ,

  • Great article about Vi Hart in the New York Times

    Updated: 2011-01-19 06:44:57
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Great article about Vi Hart in the New York Times January 18th , 2011 by Sol Check out Bending and Stretching Classroom Lessons to Make Math Inspire at the New York Times . It’s a great interview with Vi Hart . You’ll need a free account at the New York Times to read the . article I didn’t know that Hart graduated with a degree in music and never took a math course in college . Just two years after graduating she has produced amazing work If you enjoyed this post , make sure you subscribe to my RSS feed One Response to Great article about Vi Hart in the New York Times” By Jon on Jan 19, 2011 Reply Thanks for the link . It looks really interesting just by the photo . I never would have

  • Wild About Math bloggers 1/7/11

    Updated: 2011-01-17 16:14:54
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 1 7 11 January 17th , 2011 by Sol The 1 14 Wild About Math Bloggers post is at Equalis Happy New Year , Everybody Here’s some fun stuff from the Math . web Shecky has an in-depth review of Princeton University Press’s new book : Loving and Hating . Mathematics Gary Davis at the Republic of Mathematics has a fun article about the number 2011 Not only is 2011 prime but it is also the sum of 11 consecutive prime numbers . Wow Keith Devlin has a very thought-provoking article , What Exactly is Multiplication After my three articles on the nature of multiplication in 2008 June , July-August , September I promised myself to leave the topic alone for some years . In fact ,

  • Happenings – 2011 Jan 15

    Updated: 2011-01-15 20:10:27
    Well, I’ve managed to put off this post until almost the last minute; but since I did not put out a technical post last Monday, I certainly have to put out a diary post today. Why is it almost the last minute? Because I have to drive to a friend’s house to watch the Pittsburgh [...]

  • Ma & Pa Kettle Math

    Updated: 2011-01-15 05:07:16
    http://www.youtube.com/watch?v=Bfq5kju627c SHARETHIS.addEntry({ title: "Ma & Pa Kettle Math", url: "http://wildaboutmath.com/2011/01/14/ma-pa-kettle-math/" });

  • An interesting problem with sums

    Updated: 2011-01-14 07:14:12
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos An interesting problem with sums January 14th , 2011 by Sol Check out this brand new video by James Tanton . In it , he tackles a problem I’ve personally enjoyed solving determining which positive integers can be written as a sum of consecutive positive integers . For example , 6 1+2+3, 7=3+4, but 8 can’t be written as a sum of consecutive . integers The video tackles this problem in Tanton’s landmark style , with dots http : www.youtube.com watch v=Rc4NDQnqoLM And , as usual , there’s an extra credit . problem Enjoy If you enjoyed this post , make sure you subscribe to my RSS feed One Response to An interesting problem with sums” By Jonathan on Jan 17, 2011 Reply I solve this with a group

  • 'Maths 1001'

    Updated: 2011-01-12 11:05:54
    Skip to Navigation about Plus support Plus Plus sponsors subscribe to Plus terms of use Search this site : Maths 1001' review by Marianne Freiberger Submitted by mf344 on January 12, 2011 in book review Maths 1001 : absolutely everything you need to know about mathematics in 1001 bite-sized explanations By Richard Elwes There are many places where this book could live very happily : on the shelf in with the textbooks , on a coffee table , by the bed , and if it wasn't a little heavy to hold up , it would also make good reading in the bath . The reason for its versatility is that it's a mixture between an encyclopaedia and a popular maths book . In some sense , it's a plain English encyclopaedia of maths , embellished with some examples for entertainment . So whether you're trying to get at

  • New Google phone app solves sudoku

    Updated: 2011-01-11 17:45:13
    Check out this New Scientist article and the video below. Wow! http://www.youtube.com/watch?v=rdftOloAH9Q Hat tip to Equalis. SHARETHIS.addEntry({ title: "New Google phone app solves sudoku", url: "http://wildaboutmath.com/2011/01/11/new-google-phone-app-solves-sudoku/" });

  • Tuesday Teacher Tips: Money!

    Updated: 2011-01-11 17:28:17
    Welcome to the Tuesday Teacher Tips series! Each week we’ll highlight teaching and learning resources, ideas to use in the classroom, as well as things to ponder as you go about your teaching day. During a recent unit on money, I came across a great resource to use in the classroom—the United States Mint website. Under [...]

  • Math Club Meeting, January 20th, 6:00 PM

    Updated: 2011-01-11 16:11:55
    Welcome back to another semester. I hope everyone had a nice relaxing break and he first week of classes is going well. o get this semester started we are going to have a Meeting on Thursday January 20th at 6:00pm in the math lounge. There will be pizza, pop, and important information on activities that will be happening this semester.

  • Top 10 Jobs for 2011. Math degree looking good.

    Updated: 2011-01-10 19:14:58
    3 of the top 4 jobs are mathematics or statistics related.http://www.careercast.com/jobs-rated/10-best-jobs-2011

  • Wild About Math bloggers 12/31/10

    Updated: 2011-01-10 15:52:06
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 12 31 10 January 10th , 2011 by Sol The new edition of Wild About Math Bloggers is at Equalis Here’s the previous edition . Here’s our last Wild About Math Bloggers of the year . Sit back and enjoy this week’s . ride The Mathematics and Multimedia Blog Carnival 6 is now posted at Great Maths Teaching Ideas Stephen Wolfram tells , at the Wolfram Blog , about his new venture : Touch Press I’ve been waiting for some time for someone to venture beyond the simple ebook to do something more impressive than just providing text to read on an electronic device . Well , Touch Press has done it . Combine text with graphics and live interaction throw in a hefty dose of

  • Two Planes Keep Flying

    Updated: 2011-01-09 21:11:57
    Two days ago I threw at my readers the following problem: A plane takes off and goes east at a rate of 350 mph. At the same time, a second plane takes off from the same place and goes west at a rate of 400 mph. When will they be 2000 miles [...]

  • Two Planes

    Updated: 2011-01-07 22:29:51
    I stumbled upon the following problem in Mathematics Teacher v.73 (September 1980): A plane takes off and goes east at a rate of 350 mph. At the same time, a second plane takes off from the same place and goes west at a rate of 400 mph. When will they be 2000 [...]

  • Reading for a rainy day

    Updated: 2011-01-07 11:16:11
    Today it’s raining in both Seattle and Paris. Here are a few things I think are worth reading while the weather clears up. Stop collecting coupons. Recently, Batson, Spielman, and Srivastava gave a beautiful sparsification result for graphs: Every graph has a linear-sized spectral sparsifier. Here is one statement of their result (taken from Srivastava’s [...]

  • NOAA Scholarships

    Updated: 2011-01-07 00:38:06
    Behrend Math Blog NOAA Scholarships By MICHAEL RUTTER on January 6, 2011 7:38 PM No Comments No TrackBacks NOAA is pleased to announce the availability of scholarships to students majoring in disciplines related to oceanic and atmospheric science , research , or technology , and supportive of NOAA's programs and mission , e.g . biological , social and physical sciences mathematics engineering and computer and information sciences , teacher . education Undergraduate Scholarships for students who are currently sophomores Educational Partnership Program Undergraduate : Scholarship http : www.epp.noaa.gov The application deadline is January 31, 2011. Ernest F . Hollings Undergraduate Scholarship : Program http : www.oesd.noaa.gov Hollings_info.html The application deadline is February 4, 2011.

  • IT Internship at Erie Insurance

    Updated: 2011-01-06 05:56:12
    Behrend Math Blog IT Internship at Erie Insurance By MICHAEL RUTTER on January 6, 2011 12:56 PM No Comments No TrackBacks For those with computer science options or minors Information Technology Internships Erie Insurance Group , located in Erie , PA , will have Information Technology internships available to students pursuing a Bachelor's degree in an IT-related discipline . nbsp These are paid internships for the summer of 2011. Housing assistance may be available to those that qualify . nbsp Applications will be accepted from students who are completing their sophomore or junior year with a minimum cumulative GPA of 3.0. There are IT intern positions in the following : disciplines Business Analysis , Business Systems Consulting , Business Process Management , Programming , Project

  • Metric 2011: Metric geometry, groups, and algorithms

    Updated: 2011-01-04 22:29:06
    There will be a program at the Institut Henri Poincaré from Jan 5 to Mar 31 on “Metric geometry, algorithms, and groups.” Visit the web site, or that of the sister program on Discrete Analysis at the Newton Institute. Notes from the program and related courses and talks will be posted at the Metric 2011 [...]

  • The Best Writing on Mathematics 2010

    Updated: 2011-01-04 18:00:00
    Home About Math Books Table of Contents Write for us Applied Math Essential Math History Math Education Math News Math Websites Software Suggested Reading Tutorial Unsolved Problems The Best Writing on Mathematics 2010 Posted by Antonio Cangiano in Suggested Reading on January 4th , 2011 one response While compiling the new math releases for my site that helps you discover new books I came across a brand new book by Princeton University Press , called The Best Writing on Mathematics 2010 While I haven’t had the opportunity to read this book yet , it was just released yesterday I think it looks extremely . promising Here is a description of it directly from the : publisher This anthology brings together the year’s finest writing on mathematics from around the world . Featuring promising new

  • Tuesday Teacher Tips: Grocery Store Ads

    Updated: 2011-01-04 17:48:22
    Welcome to the Tuesday Teacher Tips series! Each week we’ll highlight teaching and learning resources, ideas to use in the classroom, as well as things to ponder as you go about your teaching day. Recently, I’ve been saving copies of the weekly grocery ads, the multi-page flyers that come in the Sunday paper. They work great to [...]

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