It only happens every 4-8 years, and Inauguration Day is a great learning opportunity. There is a treasure trove of information at Tech Savvy Mama.
They have an insane amount of links on topics that parents or teachers can use to educate kids about historical context, biography, American government, traditions, and even fashion. There are also printable worksheets. Lots of interesting stuff there! You should seriously check it out.
Photo by Presidential Inaugural Committee.