One for All
One for All is a campaign promoting increased knowledge of the First Amendment and the five freedoms it offers to U.S. citizens. According to their website, currently the vast majority of Americans can only recall one of these freedoms—freedom of speech. The rights to peaceably assemble, petition, freedom of religion, and freedom of the press are often forgotten, despite being crucial to U.S. ways of life.
The majority of the site is devoted to press concerning the One for All initiative and free ads promoting First Amendment awareness. However, contents of use to teachers include First Amendment FAQs and several lesson plans—3 for elementary and middle school, including one where students create a mock blog for a founding father, and more than 15 for high school classrooms. A small news ticker in the lower right hand corner of the main page displays recent cases related to the First Amendment. This may prove useful for finding current examples for the classroom, although you will want to screen them first, as the content isn't always K-12 appropriate.