Math Forum -- lots of great math information, including weekly math challenge problems. A good place to begin a search on numerous mathematical topics or ask for special help with a challenging problem ("ask Dr. Math"). http://mathforum.org
Mathpath -- a summer program for middle school students who are gifted in mathematics. There is a qualifying quiz which features challenging problems very different from those in mathcounts. http://www.mathpath.org/Quiz/quiz.2005.pdf
THEOREM OF THE DAY -- This website offers a different theorem (or lemma, law, formula, or identity) every day. http://www.theoremoftheday.org
Math Quizzes -- This fun website (softschools.com) offers FREE math quizzes. At the end of each quiz, you can check your answers and see your score with the given answer keys. This is a great website for additional math practice. http://www.softschools.com/quizzes/math/
Math Games & Worksheets -- This same website also offers math games and various math worksheets for 6th & 7th grade math. http://www.softschools.com/grades/6th_and_7th.jsp
Star Origami -- This website teaches you how to fold a 3D Star like the one shown in my classroom. http://www.merrimack.edu/~thull/fit.html
Origami: Jedi Master Yoda -- Yes, Yoda in the Star War movie. You can learn to fold Yoda with one piece of paper! Although the instruction is written in Spanish, the diagram is clear and self-explanatory. http://www.pajarita.org/aep/internacionales/intern2-1.pdf
Cupertino Middle School http://cupertino.ca.campusgrid.net/home/Links+to+our+Schools/Middle+Schools