Attention: the Grade 4 Nashua School's Web Guide is now located here: http://people.ne.mediaone.net/jimrhansen/gradefour/index.html
Here is a favorite lesson from my class.You might like to use it when you teach 2 digit by 2 digit multiplication. Ferris Wheel Multiplication
Mr. Hansen's 3rd Grade Class Website 1999-2000 Mt. Pleasant School I am looping with this class this year
KidsRunning An interview with Mr. Hansen by KidsRunning.com (on teaching, running, and the Boston Marathon).
Yahooligans search engine for kids
Scholastic.com a good place to look for ideas and resources
Eduhound.com another nice place for teachers to look for resources on the web
FactMonster.com an online dictionary, encyclopedia. almanac, atlas, and general source of all sorts of information in all subject areas for kids.