Recently an educator asked me about resources for helping a parent prepare for the U.S. Citizenship Interview and Exam. The following resources are ones I recommend most frequently:
This video comes directly from US Immigration office and has been very helpful to my adult students: http://www.youtube.com/watch?v=SDb9_CqPUTQ
Many free resources exist on the US Immigration site to help people prepare for the exam: http://www.uscis.gov/citizenship/learners/study-test/study-materials-civics-test
For several years I taught a citizenship test prep course. Students seem to enjoy the format of this book and CD. Practicing with the CD is an essential component of being reading for the dictation portion of the actual exam and interview. The book and CD can be purchased on Amazon: http://www.newreaderspress.com/citizenship-passing-the-tes
If you host a local class to prepare individuals to take the exam, feel free to comment in a reply.