• Happenings – 2011 Apr 30

    Updated: 2011-04-30 19:24:54
    I’ve been all over the place last weekend and during the week, doing a little bit of a lot of things. I’ve got some things that seem to be finished, in principle if not in practice. We’ll be done with elliptical orbits as soon as I put out a derivation of Kepler’s equation…. And the [...]

  • Wild About Math blogs 4/22/11

    Updated: 2011-04-29 14:28:47
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math blogs 4 22 11 April 29th , 2011 by Sol Welcome to another edition of Wild About Math blogs I’m about to start a new blog about the intersection of Math+kids+exploration+programming+Mathematica . I’m about to start a blog about programming with Mathematica as a way for kids and adults to get engaged with Math . I’m pretty new to Mathematica and I find myself getting stuck with some of the basics which will make the new blog all the more valuable . If you have experience with Mathematica and can help me with writing some simple animations I would be incredibly grateful and , of course , I will acknowledge you in the blog and if you like I’ll link to your . site In the new blog

  • Playing with Mathematica is live

    Updated: 2011-04-27 20:10:42
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Playing with Mathematica is live April 27th , 2011 by Sol This morning I launched a new site , Playing with Mathematica For those of you who , like me , are new to Mathematica I believe you will enjoy the site . I’m not calling it a blog because my intent is to produce in depth how-to notebooks and essays on topics related to exploring math with Mathematica . I’m not expecting it to have the tone of a blog . Wild About Math will continue to live on although by the end of next month I’ll stop doing the weekly Wild About Math bloggers series and I’ll go back to the sporadic postings I’ve been doing for some . time I invite you to come check out the new site and , if it catches your fancy ,

  • Tuesday Teacher Tips: Time to Test

    Updated: 2011-04-26 19:34:04
    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. The signs of spring are prominent in classrooms across the country; students are gearing up to take standards-based tests. Check out this month’s [...]

  • Elliptical orbits: given time, find position

    Updated: 2011-04-26 01:44:46
    For a change, I decided to split two problems into two posts. We have found time from position; now let’s reverse that and find position from time. The following problem is Example 2.1 on p. 31 of Prussing & Conway, “Orbital Mechanics” (see my bibliography page). “An Earth satellite orbit has a semimajor axis a [...]

  • Happenings – 2011 Apr 23

    Updated: 2011-04-23 17:13:16
    Well, it’s been a relatively uneventful week. As I expected… while looking for something else entirely, I moved a small box of papers, and lo and behold – there was my book on differential games. It had never made it off that desk, and had gotten covered up by stuff. I own a book on [...]

  • Wild About Math blogs 4/15/11

    Updated: 2011-04-22 14:08:56
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math blogs 4 15 11 April 22nd , 2011 by Sol Here we go with another edition of Wild About Math Blogs Check out this impressive April Fool’s video on complex . numbers http : www.youtube.com watch v=aP4fWMLofvo Hat tip to Dan Carnival of Mathematics 76 has been posted at Walking Randomly Check out this great sculpture with 80 pencils 10-Minute Math has some wonderful illustrations of an Alphabet book that teaches young ones about . symmetry Here’s an amazing TED video , Printing a human kidney , that shows an application of 2-D and 3-D . geometry http : www.youtube.com watch v=9RMx31GnNXY Hat tip to squareCircleZ The Museum of Mathemathics , to open in 2012, has received a 2

  • Algebra proofs

    Updated: 2011-04-21 02:58:56
    Some important algebra proofs are demonstrated and explained here.

  • Proof by mathematical induction

    Updated: 2011-04-20 23:07:54
    A crystal clear explanation of how to do proof by mathematical induction.

  • Seeking help with Mathematica

    Updated: 2011-04-19 15:12:57
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Seeking help with Mathematica April 19th , 2011 by Sol I’m about to start a blog about programming with Mathematica as a way for kids and adults to get engaged with Math . I’m pretty new to Mathematica and I find myself getting stuck with some of the basics which will make the new blog all the more valuable . If you have experience with Mathematica and can help me with writing some simple animations I would be incredibly grateful and , of course , I will acknowledge you in the blog and if you like I’ll link to your site . In the new blog I’ll be writing how-to articles where I dissect some simple Mathematica code and show readers how to do neat explorations . If you’re willing to help me

  • I’m famous!

    Updated: 2011-04-19 14:04:26
    The local Santa Fe newspaper ran an article about my monthly Math gatherings. … I read about some guy who thought it was possible to make math “fun and accessible.” He started a blog, Wild About Math!, and last fall he began hosting a math group the third Wednesday of each month at the Santa Fe Complex (a place where brainy people work with math to create some incredible, even useful, things). Check it out! SHARETHIS.addEntry({ title: "I'm famous!", url: "http://wildaboutmath.com/2011/04/19/im-famous/" });

  • Leaders to Watch: EdNET’s Best for 2011

    Updated: 2011-04-18 19:03:17
    The EdNET community and the EdNET’s Best panel have chosen the following contenders for spots on the list of EdNET’s Best for 2011 Leaders to Watch, which recognizes business professionals who are making a significant impact in the education industry. DreamBox Learning’s CEO Jessie Woolley-Wilson was nominated for EdNET’s Best “Leaders to Watch” category. Vote for Jessie [...]

  • 'The big questions: Mathematics'

    Updated: 2011-04-18 11:40:40
    The big questions: Mathematics By Tony Crilly With twenty skillfully written essays Tony Crilly paints a broad-stroke picture of modern mathematics, focusing on some of the most exciting topics. This book is intended for people whose acquaintance with mathematics is limited to their high school years, but who want to know "what all this fuss is about".read more

  • Happenings – 2011 Apr 16

    Updated: 2011-04-16 21:31:51
    The big news for the week was that I came down with a cold Saturday night, and that wiped out the rest of the weekend, any possibility of a Monday evening post, and a fair bit of the week. Still, it left me time to think, if not to do. I think I’m ready to [...]

  • Wild About Math bloggers 4/8/11

    Updated: 2011-04-16 16:17:55
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 4 8 11 April 16th , 2011 by Sol Welcome to the April 8th edition of Wild About Math Bloggers What’s special about Algebra II The Washington Post reports that Of all of the classes offered in high school , Algebra II is the leading predictor of college and work success , according to research that has launched a growing national movement to require it of graduates . Hat tip to Shecky Try your hand at this problem that lends itself to proof by induction It is known that is an integer number . Prove that is also an integer number for any integer n Discussion and hints : Use mathematical induction . First square the given integer number to show that is also an integer

  • Tuesday Teacher Tips: Math and Environmental Education

    Updated: 2011-04-12 16:26:39
    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. The month of April provides many opportunities to integrate environmental learning into your classroom. Environmental Education Week (April 10-16) The National Environmental Education Week [...]

  • 80 pencils

    Updated: 2011-04-11 00:45:21
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos 80 pencils April 10th , 2011 by Sol Check out the great pictures in this blog post by Cory Poole at An Ocean of Knowledge an Inch Deep It’s the middle of April and this next week all students at University Preparatory School , where I teach , will be taking the California standardized tests . So I decided to design and build a sculpture that I’m calling Standardized Testing And Reporting” or STAR” , which is what the California testing program is named . The sculpture is made up of 80 pencils and is held together with a variety of glues . If you enjoyed this post , make sure you subscribe to my RSS feed 2 Responses to 80 pencils” By Guillermo Bautista on Apr 18, 2011 Reply Very creative .

  • Wild About Math bloggers 4/1/11

    Updated: 2011-04-11 00:41:51
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 4 1 11 April 10th , 2011 by Sol Welcome to April The 9th Mathematics and Multimedia Blog Carnival is hosted at Virtual Math Tutor . Check out this perpetual motion waterwheel I discovered at the : Carnival http : www.youtube.com watch v=0v2xnl6LwJE Math Teachers at Play 36 is published at Math . Hombre Check out the article and video below of a 12-year old physics genius The article title refers to the boy as autistic but , if you read the article , you’ll learn that the boy has Asperger’s Syndrome . HUGE difference . Hat tip to Shecky http : www.youtube.com watch v=YFmrlIEpJOE Did you know that there many many ways to define what the center of a triangle is Alex

  • Happenings – 2011 Apr 9

    Updated: 2011-04-09 17:24:24
    Let’s just pick this up where I left off last Saturday. The list of things I do not understand continues to grow faster than the shorter list of things I do understand… but at least the shorter list is growing too. The two mechanics problems – of course – worked out. I still don’t understand [...]

  • Computer Jokes

    Updated: 2011-04-08 23:04:18
    * * * Today I saw an ad — “A printer for sale” — handwritten. Hmm. * * * What do you call a motherboard on your spouse’s computer? The motherboard-in-law. a2a_linkname="Computer Jokes"; a2a_linkurl="http://blog.tanyakhovanova.com/?p=322";

  • Around the Corner: NCTM 2011 (Visit us in booth 1428!)

    Updated: 2011-04-08 22:00:18
    Are you attending NCTM 2011 next week (April 13th-16th) in Indianapolis, IN? If so, make sure you visit DreamBox Learning in booth 1428! We have a number of activities going on in-booth and at the show! Calendar of Events   Thursday, April 14th Book signing with Dr. Cathy Fosnot Models of Intervention in Mathematics: Reweaving the Tapestry 11:00am Meet and greet with [...]

  • Tuesday Teacher Tips: Parent Communication

    Updated: 2011-04-05 17:30:53
    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. This week is conference week at our school. It’s always a busy week—teaching all day and then meeting with parents in the [...]

  • TI introduces new color-display TI-Nspire CX

    Updated: 2011-04-05 14:36:06
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos TI introduces new color-display TI-Nspire CX April 5th , 2011 by Sol TI has a new color CAS computer algebra system handheld learning device From the Press Release DALLAS , Feb . 25, 2011 PRNewswire In its quest to support math and science educators in achieving learning goals for their students , Texas Instruments rolls out its Nspired Learning solution with the introduction of the new color-display TI-Nspire™ CX handheld . With the Nspired Learning solution , teachers are able to build their own interactive and engaging math and science . classrooms The TI-Nspire CX handheld is the cornerstone of the Nspired Learning solution . The TI-Nspire CX handheld offers a set of fully integrated

  • 'Mathematics of life'

    Updated: 2011-04-04 15:25:11
    Mathematics of life: Unlocking the secrets of existence By Ian Stewart Mathematicians and physicists have long fought over the big names. Newton? He was one of us, the physicists claim, with his studies of gravity, light and motion. But he invented calculus, the mathematicians reply, he worked on geometry and harmonic series.read more

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