MCTM site mapThere are several websites which go to great effort to keep an updated list of math resources, including resources for teachers, sites for individual topics and grade levels, challenge problems, software and much more. Take time to visit and examine these
Comprehensive Math Resource Web Sites
There is also a page with web sites related to
Standards-Based Instruction.

There is a page on the NCTM site with teacher information and resources
Teach Math.

And, as linked from the MCTM main page, there is a page with
Challenges, Problems and Puzzles

Minnesota Department of Education Sample Tests
Basic Skills Test
Minnesota Comprehensive Assessments