Check out this wiki! This was created by two classes, one in New York and one in New Zealand. They started with questions about differences between the northern and southern hemispheres and collaborated to research information about seasons, whirlpool d
This site has searchable video cases of real elementary math lessons teaching standards based mathematics lessons. You can also see a complete lesson plan with handouts.
Great resouce for children's literature applicable to math lessons. You can search by grade or topic. The site also has links to some lesson plans and online activities which go with some of the books.
The NCTM website has excellent ideas for lesson plans, interactive on-line math activities, challenge problems, and more. NCTM offers many professional development resources such as journals, on-line conferences, information about regional conferences, an