I recently blogged (here and here) about the experiment conducted by students in Italy that allowed them to use publicly available NASA audio recordings from the moon landings to determine the distance between the earth and the moon. I bit more online research led to...
Posts related to: Mathematics
Following up on lunar distance
A followup to my previous posting about the Italian kids calculating the distance to the moon using recordings from the Apollo Space program. As I read the story on the technology Review website, I came to the comments made by readers. One stuck out. This is what...
From Tech to Ed Tech: Distance to the moon
For one reason or another, I have three consecutive posts regarding the earth and sun and moon - i.e. the local area in the solar system. I had just completed my previous postings (on on seeing through eclipses and measuring the radius of the earth) when I came across...
The beauty of the web: Shape of the earth
While searching for information for my previous posting on using eclipses to see, I came across an interesting paper that provided yet another way of figuring out the shape of the Earth. Lynch, D.K. (2005). Turbulent ship wakes: further evidence that the Earth is...
TPACK videos: A few new ones
I have come across some new TPACK related videos/podcasts (either on youtube or elsewhere) that I feel may be worth sharing. The first of them came as an email from Matt Townsley. He pointed me to these two videos by Janet Bowers of San Diego State University. In...
On making computation visible
Here is a cool video about a "a mechanical, binary adding machine that uses marbles to flip the bits" - in other words a computer made of wood, that works at a pace that we can grasp! Marvelous. (HT: Collision Detection). Check out the video: [youtube width="425"...
On messing with your mind
A fascinating series of illusions to reveal just how complicated a phenomenon perception is. I was particularly impressed by the "rubber hand" illusion. http://www.youtube.com/watch?v=YQtbcgBWobA
Binary Sudoku
Courtsey, XKCD!
Math Concepts by Gaurav Bhatnagar
Gaurav Bhatnagar is one of my oldest friends - going back to 8th grade in Modern School, Barakhamba Road. He recently published his first book on Mathematics for kids, titled, Get Smart: Maths Concepts, published by Penguin India. The book also has an associated blog...
Analyzing political debate
Political debates are heavily analyzed - by pundits and laypeople alike. I had my own minor visual contribution to this discourse through this WordMap/Cloud of the third and final debate between McCain and Obama . Such wordmaps are fun to create and see but are not...
Decision science, neural Buddhists & the loopy brain of David Brooks
I do not understand David Brooks. Brooks is an op-ed columnist for the NYTimes. For the most part his columns are right-of-the-political wing nuttiness, garbed in some erudite clothing. I am not linking to them here but his past few op-eds suggesting that McCain would...
100 greatest mathematical theorems
Title says it all... check it out.
Interesting links
Here are some links that came up during our discussion today regarding web-based software for education. Shodor foundation Curriki Gizmos from Explore Learning Illumination genetics tools
Visualizing mathematics
I love visual proofs of mathematical theorems. One visual proof I use quite often in my design courses (CEP817 or CEP917) is a visual proof of the fact that the sum of consecutive odd numbers is a square number. In other words: 1 + 3 = 4 = 22 1 + 3 + 5 = 9 = 32 1 + 3...
Truly grasping 4-D
Understanding 4D while living in a 3D world. A stunning series of videos (freely available for download or online viewing) that teach you how to to visualize four dimensions. Titled Dimensions, these videos were created by a French professor of mathematics in...
TAPS / TPACK videos
A few years ago, as a part of our PT3 project Matt Koehler, Ken Dirkin and I video taped a series of teacher interviews around authentic problem solving in teaching using technology. The teachers were winners of the TAPS (Technology in Authentic Problem Solving)...
Fear, awe and the algebra of the pendulum
In response to my previous posting titled How artists work, Leigh Wolf pointed out a book (Curious Minds: How a child becomes a scientist). I had not heard of this book before and a quick google search led me to this page. Edited by John Brockman (the brains behind...
TPACK @ AMTE
Maggie Niess has a new piece titled Knowledge Needed for Teaching With Technologies – Call it TPACK published in the spring 08 issue of AMTE Connections. For those of you who don’t know, AMTE stands for the Association of Mathematics Teacher Educators and you can find...
Math-Music, serious game design
My 8 year old daughter, Shreya, came to me the other day and said that she had designed a learning game. I asked her to draw it out for me and here is what she had created. The game is called Math Music and I guess, it builds on the Guitar Hero idea, but adds...
A certain ambiguity
A Certain Ambiguity: A Mathematical Novel is a book written by two of my high school friends, Gaurav Suri and Hartosh Singh Bal.