An interactive applet and associated web page that show the concept of ...
An interactive applet and associated web page that show the concept of adjacent angles (two angles that share a common leg). The applet shows three line segments with a common endpoint. The user can move the center one and see that the angles on both sides (the adjacent angles) of it are affected. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, students can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
In 1909, the predominantly immigrant and female workers in New York City's ...
In 1909, the predominantly immigrant and female workers in New York City's garment industry staged a series of job walkouts that led to a massive general strike involving more than 20,000 workers. Fifteen-year-old shirtwaist worker Clara Lemlich, a Jewish immigrant from Russia, emerged as a key organizer and speaker. An unprovoked attack on Lemlich and her fellow female strikers by anti-union thugs was recorded by New York Sun correspondent McAlister Coleman. He retold the story years later in his article, "All of Which I Saw," published in the Progressive in 1950.