Search Mathematics Centre ... Big Picture ... News ... Research & Stories ... Cube Tube ... Web Papers ... Contacts ... Site Map

Professional Development ... Working Mathematically ... Mathematics Task Centre ... Calculating Changes ... Maths300 ... Indigenous Students

Resources & Ordering ... Poly Plug ... Task Cameos ... Menu Maths ... Maths With Attitude ... Working Mathematically with Infants ... Sphinx Album

 

News

February 2013

In this month's News you will find:

Red Square  Christmas Comes To Pyramid Puzzle

Red Square  New Maths300 Lesson

Red Square  2013 Maths300 PD

Red Square  Stock Runout Special Extended

Red Square  Tasks of the Month
Task 153, Knight Protectors
Task 155, 64 = 65

Please feel free to distribute this information.

Email News Services
If you would like to subscribe please send an email request to: doug@blackdouglas.com.au:
  • In the subject line write Subscribe Maths.
  • In the body of message state which divisions you want to subscribe to, or simply write Subscribe All.
  • Add your name and preferred email address.
Update messages are sent from:
Mathematics Centre monthly
Calculating Changes bi-monthly
Maths300 occasionally
Working with Mathematics Centre
will help you find your way around our site
Browsing Hint
Use the View/Zoom options of your browser to 'move' the page closer or further away. Ctrl +, Ctrl - and Ctrl 0.
Green Line

  • Tasks of the Month
    Two new cameos this month.
    • Knight Protectors is a logic puzzle using the movements of a chess knight. The challenge is simply stated - to place 12 knights so that every square of an 8 x 8 board is either occupied or protected by the knights. It can be a difficult challenge, but when the solution is found it is a beautiful example of rotational symmetry. What happens if the size of the board is changed?
    • 64 = 65 is one of a genre of 'missing square' puzzles. It appears that the same 4 jigsaw pieces can make a square of area 64 and a rectangle of area 65. This can't be true, so how can the paradox be explained? At different levels, students can select different mathematical tools to prove where the extra square is and even to show that it's area must be one square unit. The task also opens the door to a study of Fibonacci numbers.
    Knight Protectors      64 = 65
    Click a photo to access its cameo, or access all current cameos through the Link List below.

Keep smiling,
Doug.
Green Line

Link List

  • Did you miss December/January News?
    If so you missed information about:
    1. Points of View discounted
    2. 2013 Maths300 PD
    3. Fractions in a Fraction of the Time (PD)
    4. Maths With Attitude & the Australian Curriculum
    5. Revision and expansion of Make A Snake cameo
    6. ...and more...

Did You Know?

Green Line

Previous News

November 2012 ... October 2012 ... September 2012 ... August 2012
June/July 2012 ... May 2012 ... April 2012 ... March 2012 ... February 2012 ... January 2012
December 2011 ... November 2011 ... October 2011 ... September 2011 ... August 2011 ... July 2011
June 2011 ... May 2011 ... April 2011 ... March 2011 ... February 2011 ... Dec 2010/Jan 2011
November 2010 ... October 2010 ... September 2010 ... August 2010 ... July 2010
June 2010 ... May 2010 ... April 2010 ... March 2010 ... February 2010 ... Dec.2009/Jan.2010
November 2009 ... October 2009 ... September 2009 ... August 2009 ... July 2009
June 2009 ... May 2009 ... April 2009 ... March 2009 ... February 2009 ... Dec.2008/Jan.2009
November 2008 ... October 2008 ... September 2008 ... August 2008 ... July 2008
May/June 2008 ... April 2008 ... March 2008 ... February 2008 ... Dec.2007/ Jan.2008
November 2007 ... October 2007 ... August/September 2007 ... July 2007
June 2007 ... May 2007 ... April 2007 ... March 2007 ... February 2007 ... Dec. 2006/ Jan. 2007
November 2006 ... October 2006 ... September 2006 ... August 2006 ... July 2006
June 2006 ... May 2006 ... April 2006 ... March 2006 ... February 2006 ... Dec. 2005/ Jan. 2006
November 2005 ... October 2005 ... September 2005 ... August 2005 ... July 2005
June 2005 ... May 2005 ... April 2005 ... March 2005 ... February 2005 ... Dec. 2004/ Jan. 2005
November 2004 ... October 2004 ... September 2004 ... August 2004 ... July 2004
June 2004 ... April/May 2004 ... March 2004 ... February 2004
December 2003 ... October 2003 ... August/September 2003 ... July 2003
June 2003 ... April/May 2003 ... March 2003 ... February 2003 ... January 2003
December 2002 ... November 2002 ... October 2002 ... September 2002 ... March 2002
December 2001 ... October 2001

Continue exploring our history back to July 1992 through the Sense of History link.

Green Line