www.cut-the-knot.org

Excellent interactive mathematical miscellany (700+ java applets).

www.nrich.maths.org

Problems, games, discussion boards and more via the MMP at Cambridge.

www.shodor.org/interactivate

Interactive explorations with supporting resources for instructors.

www.geogebra.org

GeoGebra – free dynamic maths software for geometry, algebra, calculus, etc

http://schools.ednet.ns.ca/avrsb/732/hainstoc/briefcase/techintegpage_math_all.htm

Links to many resources – MySkoool (has an interactive number line),NCTM Illuminations, NUMB3RS, ..
www.censusatschool.ntu.ac.uk/

Census At School – sample and use data from, and participate in, a project
involving schoolchildren across the world. Also check out www.gapminder.org/

http://understandinguncertainty.org

Examples and animations on uncertainty, probability and risk.

www.simonsingh.net

Download Simon Singh's excellent interactive CD-ROM of The Code Book.
www.rigb.org/christmaslectures2006

Activities building on the 2006 RI Christmas Lectures, The NUM8ER MY5TERIES.

Access web casts of 30 years of past Christmas Lectures at www.rigb.org

http://www.fi.uu.nl/wisweb/en

Wisweb, mathematical applets from the Freudenthal Institute.

http://mcs.open.ac.uk/jhm3/

Professor John Mason's Structured Variation Grids.

http://nlvm.usu.edu

Virtual Manipulatives, including algebra tiles.

www.counton.org

A variety of resources, including a (limited) listing of UK maths 'performers'.

http://www.pims.math.ca/knotplot

KnotPlot is a fabulous resource for playing with knots. A good introduction

to knots is available at http://www.popmath.org.uk/exhib/knotexhib.html

www.sunsite.ubc.ca/DigitalMathArchive/Euclid/java/html/pythagoras.html

Pythagoras animated.

MATHEMATICS: 

FURTHER HELP

http://www.nikon.com/about/feelnikon/universcale/index_f.htm

Experience sizes, from nano to ...

Further online resources:

For mathematical topics, search http://mathworld.com

or www.wikipedia.org

www-history.mcs.st-andrews.ac.uk

The extensive, indexed MacTutor history of maths archive.

http://mathforum.org

Math Forum – one of the most comprehensive maths education resources.

http://illuminations.nctm.org

From the US: Diverse activities, lessons, e-examples and links.

www.galileo.org/math

A great collection of problems, investigations, resources and links.

www.stat.auckland.ac.nz/~iase/islp

International Statistics Literacy Project resources.

http://plus.maths.org

Online magazine – window on to a world of maths

– in art, science, sport, …