Librarians' Index to the Internet Mathematics http://lii.org/search/file/math
King's List of On-line Math Activities http://www.k111.k12.il.us/king/math.htm
Math Ideas for Science Fair Projects http://mathforum.org/teachers/mathproject.html
Math Projects for Science Fairs http://camel.math.ca/Education/mpsf
More High School Web Links http://inside.pps.k12.or.us/teachers.pps.k12.or.us/math/hsmath/.docs/pg/hs_weblinks02.html
The New Knot a Braid of Links http://www.cms.math.ca/Kabol/knotlinks.html
Numeracy-General http://www.teachingideas.co.uk/maths/contents.htm
http://www.ohiorc.org
Practical Uses of Math and Science http://pumas.jpl.nasa.gov
New York Times Daily Lesson Plans Mathematics http://www.nytimes.com/learning/teachers/lessons/mathematics.html
Math-abundance http://www.ping.be/math
Curioius Math http://www.curiousmath.com
Node Works Directory http://dir.nodeworks.com/Science/Math/Education
Matrix http://www.mathsyear2000.org/museum/outside.html
Mathematics Lessons That Are fun! fun! fun! http://math.rice.edu/~lanius/Lessons
Geometry Independent Projects http://www.ga.k12.pa.us/academics/us/Math/Geometry/index.htm
e-z gemometry.com http://www.e-zgeometry.com
Activities That Practice Function and Algebra Concepts http://www.shodor.org/interactivate/activities/algebra.html
Math Forum http://www.mathforum.com
Cut the Knot! http://www.cut-the-knot.org/ctk/index.shtml
Annotated Summary of Units http://www.georgetown.edu/projects/handsonmath/download.htm
Math Cats http://www.mathcats.com/crafts.html
Illuminations http://illuminations.nctm.org
math.com The World of Math Online http://www.math.com