Source for copying & pasting super&subscript Unicode characters so they look like exponents. Useful for headings.
The craziest. They should be ded.
A great set of resources and tips for using Wikipedia with your courses.
An activity that requires students to attempt to build a boat with the best Cost / Weight ratio in a limited amount of time. Nice introduction to modeling and classroom culture.
Turns out there's a lot of energy stored in that little thing.
Energy & rotational motion lab using hot wheels cars and tracks.
For one thing: yes, schools should "belong to the community," precisely because such neighborhoods--or collectivities of neighborhoods--must be strengthened if democracy is to survive. Since I also believe that institutions are best governed by those with the closest "self-interest," schools need to be organized to privilege the staff, the families. and the students directly involved. Small, self-governing community-based schools, well and equally funded by the state and federal government seem wisest to me at this time in our history.
Why wikipedia ain't that bad.