A huge library of the founding documents and a timeline.  Many of the documents include a glossary.  However, many of the connected sites don't work.  Also just be careful as this website does seem to have a right wing agenda. 

Very simple, easy to read write up about the Seneca Falls Convention that can be adapted for class.  Includes portraits of the major players.

From the LOC their information and primary sources on the Seneca Falls Convention.  In addition to the manuscript, it also has additional views about the convention from other sources of the time.  This might be good to use to have students compare the viewpoints of the time.

This site includes many primary resources on the founding documents.  While I think it might be a little overwhelming for students to use, teachers could use the annotated Constitution section which gives excellent notes, information and writings about the Constitution and the BIll of Rights.  It also includes a lot of supporting primary documents that assisted in writing the founding documents.

Write up of Seneca Falls Convention with links to other sites regarding womens' suffrage and women leaders in general.

Tons of good things on this site - videos about government (which I find really hard to locate), interactive games, readings and information about federalism, rights and equality.  There are a lot of resources here, including an entire section for teachers.  I think it is mostly geared towards middle and high school teachers.

This site has good pdf links to all the founding documents.  Additionally, it includes a section on using the Constitution and connecting it to current events.  I have used this before in class and it works great (and it includes recent news - from the past week!).  It also includes various lessons to use too.

Although I didn't use this entire lesson, there are some excellent vocabulary and 'anatomy' of the Constitution PDFs that would work well in lower grades and perhaps with ELL students.  Good overview of the structure of government and the powers and duties of the 3 branches. I feel that there is a lot to take from this lesson to use in class.

Great site about George Washington.  Includes links and information on the Constitutional Convention, his personal writings and his farewell address.  Lots of items that can easily be adapted for class.

A PBS video about what happened to the founding fathers who signed the Declaration of Independence.  I think students would find this interesting so they can see how signing this document really did impact the lives of these men.  Would be a nice conclusion to teaching it as it is only 8:00 minutes long.

Tons of information about the US government divided into sections for various grade groups.  I think this would be especially helpful for the younger grades.  The readings are good for all grades but I think that as far as real activities go for older grades, it is lacking.  Overall, easy to use information and helpful for students to use on their own.

Simple and short writings on major Supreme Court cases.  Very good when you need a quick description of the importance of  a case or a handout reading for the class.  This is part of PBS and their section on Supreme Court history.

Landmark cases of the Supreme Court includes Marbury v. Madison, Roe v. Wade, Brown v. Board and other instrumental cases in US history.  Provides synopsis' of the cases for different reading levels and a variety of class activities and worksheets that can be used.