Since we last featured NCTM's Illuminations site, they've
revised and expanded their content and redesigned their logo.
Use ratios to complete a bicycle race.
Use numbers, shapes, fractions, decimals, percents.
For grades 6-8; explore relationships among radius, diameter,
New lessons, written by participants in the Illuminations
Summer Institute from July 2008:
Planning a Playground
Illuminations Summer Institute
Applications are now being accepted for the 2009 Illuminations Summer Institute, a two-week intensive residential program, held at the NCTM headquarters in Reston, VA. The online application submission deadline is Friday, May 1.
This is a dynamic geometry site for handheld devices and
graphing calculators, including the Cabri Jr. Application for the
Texas Instruments TI83+ and TI84+, and the TI-Nspire.
Click "Teaching" or "Puzzles" to browse geometry construction lessons and challenges. Site owner Nevil Hopley, Head of Mathematics at George Watson's College (Edinburgh), welcomes your own contributions, and has offered to turn them into movie files like the Cabri Jr. tutorial, already available for download.