Mathematics 24x7

There is no escape...believe it or not. Mathematics is everywhere.

All Blog Posts (59)

Century Old Topology Problem Solved in 2006

In case you missed the solution of the century old Poincaré conjecture in 2006, I'll repost a link to the New York Times article "Elusive Proof, Elusive Prover: A New Mathematical Mystery". The story of the brilliant Russian mathematician Grigory Perelman (photograph) who identified… Continue

Added by Colin McAllister on June 7, 2009 at 10:43pm — No Comments

A New Game to Help Children Learn Mathematics

I reviewed the prototype of a web based graphical game that aims to help children learn mathematics. It was developed by Mr Veljko Sekelj, a freelance Internet consultant (LinkedIn profile). He invited me, via the "Math, Math Education, Math Culture" discussion group on LinkedIn.com, to try out the game and I was quite impressed. At… Continue

Added by Colin McAllister on June 6, 2009 at 9:03am — 1 Comment

History of Mathematics

I showed this video on History of Mathematics to my students . They were excited to see what they read in their textbooks. Visualisation plays an important role in explaining a concept . Through these knid of videos learning has become exciting . Students ask related questions leading to creative discussions… Continue

Added by Ramneek kaur on June 5, 2009 at 1:40pm — No Comments

Play Sudoku

Mathematics learning involves a blend of many skills. Be it calculative, logical , understanding , interpretation, analysis or application . There are a number of ways in which these skills can be inculcated. One way is playing games and solving puzzles.

Sudoku is an interesting addictive Mathematical puzzle .

How to Play?

Play Sudoku Online.…

Continue

Added by Ramneek kaur on June 4, 2009 at 4:24pm — 4 Comments

Making a Spirograph

A Spirograph is a curve formed by rolling a circle inside or outside of another circle. The pen is placed at any point on the rolling circle.



Visit #13 Mathematics street Making a… Continue

Added by Rashmi Kathuria on June 3, 2009 at 2:00pm — No Comments

Is your aptitude for mathematics being wasted?

If it is, then you may find this article inspiring: American Culture Derails Girl Math Whizzes. ScienceDaily (Oct. 13, 2008) — A culture of neglect and, at some age levels, outright social ostracism, is derailing a generation of students, especially girls, deemed the very best in mathematics, according to a new study. The report was published Oct. 10 in the Notices of the American… Continue

Added by Colin McAllister on May 28, 2009 at 1:23am — 2 Comments

Inspiring Web tools

I stumbled upon this collection via twitter.

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Added by Rashmi Kathuria on May 27, 2009 at 12:00pm — 8 Comments

A great mathematician Chen Jingrun

Photo of Chen Jingrun from the website: http://city.chinaassistor.com.

I am not familiar with his work, but I found the story of Chen Jingrun (1933-1996) fascinating. He graduated from Xiamen University in 1953 became researcher at the Chinese Academy of Sciences. His work led to progress in analytic number theory. His Chinese home… Continue

Added by Colin McAllister on May 15, 2009 at 8:28pm — 4 Comments

Thoughts About Creating A Mathematics Social Network

Are you thinking about creating a new social network for discussing mathematics? That would be a responsible undertaking, and you would need to have sufficient time and energy to make the commitment. If you are too busy, there are existing social networks for mathematics that you can join. I discuss some of the considerations in my blog post at Vox.com

If you don't wish to read… Continue

Added by Colin McAllister on May 15, 2009 at 7:54pm — No Comments

Using a Spreadsheet to Check a Calculus Problem

QUESTION: ABCD is a square with sides of unit length. points E and F are taken respectively on sides AB and AD such that AE=AF. find the maximum area of CDFE. ( The question was was posted by Keith on the SYNTAX ERROR mathematics group on Friendster)



MY ANSWER: (Posted on the Mirimatics… Continue

Added by Colin McAllister on May 10, 2009 at 10:00pm — 1 Comment

What is the relationship between a Derivative and an Integral

A derivative and an integral have an inverse relationship. If some function f(x) has an integral g(x), then the derivative of g(x) will be f(x). To be more precise, the integral of f(x) will be g(x) + c, where 'c' is a constant; any constant really. We can't determine it's value from f(x), because when we differentiate 'c', we always get 0, for any value of 'c', provided that 'c' is a… Continue

Added by Colin McAllister on May 10, 2009 at 1:57pm — No Comments

What I love to teach and why.

I love to teach Geometry and Calculus! At first Geometry was my favorite subject to teach because I loved the shapes and logic in it. It all seems so logical to me and was at times a challenge for my students. Now, I also teach Calculus and can see how everything from Algebra 1, Geometry and Trigonometry fit together. Calculus is just as fun to teach! What makes teaching even more fun is that I have a SMARTBoard in my classroom. Mathematics sure does come to life with computer animations, and… Continue

Added by Sue Palmberg on April 23, 2009 at 5:27am — No Comments

Philosophy of Members of Mathematics24x7

Philosophy of life

• Invert and multiply (in that order)

• fun

• Love it

• Make the most of every situation.

• philosophy is a placeholder for mathematics

• I believe that learning should be fun, hands-on and creative. Using a multi-sensory approach makes learning come alive. Students who actively participate in their learning retain the information and can apply the concepts they have learned.

• Think

• to enjoy the positive: arts, science, good… Continue

Added by Rashmi Kathuria on April 22, 2009 at 6:35pm — No Comments

The Structure of Mathematical Revolutions*

This entry is cross-posted at Learning in Mathland.



"You must be the change you wish to see in the world" - Mahatma Gandhi



Kate, over at f(t), is sensing a paradigm shift in the world of math education. We are moving away from textbook-centered teaching, where problems… Continue

Added by Colleen King on April 21, 2009 at 11:41pm — 1 Comment

Busy. Learning.

Many of my students attend an elite K-8 school. To say that this school offers a traditional math curriculum would be an understatement. Students in grades 5, 6, and 7 spend months studying shopkeeper's math. The main focus is percentages - discounts, sales tax, tip, simple and compound interest, commissions, annuities, etc. Each of these topics is presented as a formula to memorize. The vocabulary is beyond the comprehension of most 12 year olds. Even the numbers themselves are tiresome.… Continue

Added by Colleen King on April 17, 2009 at 8:00pm — 5 Comments

Making It Relevant

There was a discussion on Twitter recently about keeping the spirit of wonder and play alive in our classrooms. The timing was perfect because my juniors had just embarked on a journey through trigonometry and their motivation was on the decline. I needed a way to make the concepts more meaningful and thought it would be interesting to connect trigonometry to animation. My students were familiar with sine, cosine, and tangent functions. They understood how the various parameters affected the… Continue

Added by Colleen King on April 14, 2009 at 8:12pm — 1 Comment

Basic Skills

Hi everyone. This is my first attempt at blogging about my teaching so it will be a bit random at first.



I am wondering what others do when the students do not seem to have grasped basic skills they should have learned in elementary school but are now in middle school. I teach grade 7,8,10 and 11 and I am often surprised by how much information they seem to forget. Perhaps it's just me but I figured that if I had taught it in Chapter 1, the students would still remember it by Chapter… Continue

Added by Carmen on April 14, 2009 at 3:06am — 7 Comments

The beauty of mathematics

Two years ago I made a slideshow for our Amesa conference dinner about the beauty of mathematics (our theme that year) The banner on the main page made me remember it, so I am posting it here.



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Added by Maggie Verster on March 13, 2009 at 7:15pm — 3 Comments

Pi Day -March 14

March 14 is celebrated as Pi Day. Teachers and students all across the world celebrate it in different ways. Here through this blog post I am sharing some Pi Facts



• The symbol for pi was first used in 1706 by William Jones, but was popular after it was adopted by the Swiss mathematician Leonhard Euler in 1737.

• Mathematically, Pi represents the ratio of Circumference of a circle to its Diameter.

• The value of Pi up to 75… Continue

Added by Rashmi Kathuria on March 13, 2009 at 1:24pm — 5 Comments

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