Reformation Day is a good opportunity to teach your children about the courage of Martin Luther as he attempted to reform the Catholic Church.  Luther didn’t intend to change the course of history, but he obeyed the revelation of God in the Scriptures rather than the tradition taught by the church.  There are plenty of books about Luther, but simple online resources about the Reformation seem to be few and far between.  Here are a few to consider using to understand the significance of the day:

Two minute overview to the event of Reformation Day as told by Legos

A dramatic introduction to Luther by Max Maclain

• Christian History on Luther’s early years and later years.  Both are in a pdf format and not easy to navigate see these pages for the table of contents: early and later TOC 
• Ligonier has a lecture on Luther
• Stephen Nichols produces good materials on the topic including his book and lectures
• If you want a book introducing Luther try A Man Who Changed the World

PBS also has an hour long overview