Archive for August 2011
A numerical dynamical system to entrance the children of the world
Posted by: Gary Ernest Davis on: August 6, 2011
Ian Carpenter (@IanMathmogician on Twitter) came up with the following very cute dynamical process, based on whole numbers: 1. Pick a number between 1 and 99. 2. Write the number as words. 3. Count the number of letters in the words to get a new number. 4. Repeat. What happens? Suppose we start with 42. […]
Math missed in school – Alfred Posamentier
Posted by: Gary Ernest Davis on: August 5, 2011
Math teachers need “to know more than the text book, look “says Alfred Posamentier, ambulance Professor Emeritus of City College. There are mathematical wonders beyond the curriculum that can make the subject come alive.
