**21st Century Problem Solving **This site is directed to students, teachers, administrators, Parents and other professionals. It is dedicated to promoting problem solving literacy.

http://www2.hawaii.edu/suremath/home.shtml

**Discovery Online, Expeditions -- Rollercoasters**

Design your own roller coaster, using the hills, loops, dips and camelbacks that create thrills and chills.

http://discovery.com/exp/rollercoasters/build....

**Everyday Mathematics**

Student work samples and help for students...

http://sun.kent.wednet.edu/curriculum/math/edmath/...

**Figure This! Math Challenges for Families**

Ongoing series of colorful award-winning math challenges (with hints and solutions) for middle-school kids, with helpful parent guides. Can be downloaded and printed.

http://figurethis.org/index40.htm

**Qdos K-7 maths**

Interactive online maths curriculum program for Australian K-7 primary students. Content developed by qualified teachers

http://qdos.australia.edu

**Welcome to Discover Engineering Online**

Build a probe in space, design a bridge, explore science centers around the globe...

http://discoverengineering.org/eweek/index.htm...

**Bamdad's Math Comics**

This is a collection of some math related comics and cartoons.

http://csun.edu/~hcmth014/comics.html

**Zona Land, Home**

Educational and entertaining items pertaining to physics, the mathematical sciences, and to mathematics in general.

http://id.mind.net/~zona/

**Interactive Mathematics Miscellany and Puzzles**

Math puzzles. Interactive education. A lot of math information for teachers, students and parents. Work out and enjoy mathematics. Explore unexpected connections.

http://cut-the-knot.com/content.html

**Interactive Math Tutorials**

Interactive tutorials in mathematics. Learning by non-linear paths. Self-assessment tests. Interactive workbenches.

http://cne.gmu.edu/modules/dau/math_idx_frm.ht...

**The Fibonacci Numbers and the Golden section**

Fibonacci numbers and the golden section in nature, art, geometry, architecture, music, geometry and even for calculating pi!

http://mcs.surrey.ac.uk/personal/r.knott/fibon...

**Mandelbrot and Julia Set Explorer**

http://aleph0.clarku.edu/~djoyce/julia/explorer.ht...

**Pattern Blocks: Exploring Fractions with Shapes**

java applets java applets education educational math mathematics problem solving problem-solving educational java home schooling home-schooling school pattern blocks patterns blocks manipulatives

http://best.com/~ejad/java/patterns/patterns_j...

**Percent and Probability**

Learn about percents and probabilities. Change a percent to a fraction and a fraction to a percent

http://mathleague.com/help/percent/percent.htm...

**Fractions**

A web site with information on adding, subtracting, multiplying and dividing fractions. Improper fractions, mixed numbers, reducing fractions and more...

http://mathleague.com/help/fractions/fractions...

**Chance Database**

This data base contains materials designed help teach a Chance course or a more standard introductory probability or statistics course.

http://geom.umn.edu/docs/education/chance/

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