New Official Looking for Advice

[David M]

I am currently taking classes (2 so far) to become a football official. I officiate basketball and baseball but in these sports Iwent through all the classes and took the test before working a game. In football they have us take the classes and work games (Pop Warner) before taking the test. Does anyone have any suggestions on what I should work on first? What is most important? By the way in Massachusetts we use NCAA rules with several modifications.

Thanks in advance.