This is the fourth of six (once weekly) U. S. Citizenship classes for adult learners I teach as a volunteer for a local non-profit (the Latina Women's League). Each lesson includes power point slides with two to three active links to short high quality publicly licensed videos (some from the U.S. Citizenship Immigration Service, others from news services, and available through youtube).
Lesson Four includes material from the ending of the War of 1812 (and Francis Scott Key's writing of the national anthem), the Louisiana Purchase--nearly doubling the then U.S. land, the election of Abraham Lincoln, Slavery issues, the Civil War, Confederate States of America, and the reconstruction period including the post Civil War Constitutional Amendments (13, 14, and 15). This lesson includes three live links to short videos, one on the election of Lincoln/Civil War, another on the National Anthem (performed by the U.S. military college choruses--very moving), and a third on the Pledge of Allegiance (a large part of the citizenship exam and swearing in ceremony).
I pair this instruction with a short book "Study Guide for the U.S. Citizenship Test in English" by Mike Swedenberg (current version is updated January 2018). I have no economic interest in the book, but find it an excellent tool for my students, at a low cost (online I got my 15 copies spring 2018, from Amazon for $7 to $8 dollars each). This 'course' also includes a vocabulary sheet for the lengthy (twenty page) N-400 application. The process is VERY EXPENSIVE ($725 as of 2018) so it is in our best interest to have the students confidently well-prepared to succeed.
This past years' class has had a 30-40% success rate of first time exam takers, passing the exam after only one cycle through the course. Others have retaken parts or all of the course before attempting and successfully passing the exam.
The materials (book) and at the U.S. Citizenship web site are available in multiple languages. Some things I have learned through experience, that may help your students, include: Make sure your student learners are fluent enough in English (the test is given, including writing, and understanding in English to most applicants) to understand, read, write, and respond to interview questions with their Citizenship agent.
I am a retired (now part-time) adjunct Professor of political science at our local two year college (rated number one in the nation by PEW Corporation for 2014-2016) with more than twenty years of teaching experience. I have been repeatedly recognized for excellence in teaching at both the two year and university level during my career.
My citizenship students current range in age from 21 to 81, and represent many Latin and Southern American countries (Columbia, Venezuela, etc.), European countries, African-countries, Great Britain, and Asian nations.
I hope these materials may be of help to you with your students. Any profits from these materials will be used to help support the continuing costs of books, supplies, etc. in support of our Citizenship class program. Thank you in advance for you feedback, and constructive suggestions.