Keep the news in the Wayback Machine. Sign Fight for the Future's letter. Please Don't Scroll Past This Can you chip in? The Internet Archive partners with libraries, archives, and institutions across ...

Be prepared with additional items of varying sizes. Items that are too small (such as a dime) and too large (such as the opening of an umbrella) tend to be less accurate. After the measurements have ...

Discover the area formula of circles by separating into congruent shapes and using their understanding of other polygons. Give students an opportunity to estimate the area of the circular objects that ...

These lesson plans explore how propaganda and hate speech were used by the Nazis during the Holocaust. Lessons encourage critical thinking about the effects of propaganda on people and society.