Electoral College Calculator
Have you seen this? The National Archives have an electoral college calculator that allows you to mark which states went democrat, republican and third party. From there it adds it for you. This would make a great tool for students (and adults) who are keeping track of how the election plays out and allows you to keep the information at your finger tips. Check out the calculator here.
This and many other resources to help teach about the elections are located on MrsFullenkamp.com on the elections page here. Do you have any other election resources that I have missed?