Ok, so maybe you don't work in the local school system and maybe you don't lead Sunday school classes. That doesn't mean you don't teach.
Education doesn't only take place in a classroom. Much of it happens around kitchen tables or in cars through the rear view mirror. So much of our learning in life is not a formal effort. So I'll repeat it again, don't fool yourself into believing you aren't a teacher.
I've heard it said, "Christianity isn't a product to consume (think Sunday morning activities), but rather a lifestyle to live out." If this is true, then what's happening around your kitchen table on a random Thursday afternoon is just as important as what your child will hear from the pulpit on Sunday morning. We also know that the consistent conversations around your kitchen table will carry more weight in the long run than what's mentioned from the pulpit.
Let's open some scripture. Flip over to Matthew 28:19-20.
"18 Jesus came to them and said:
I have been given all authority in heaven and on earth!
19 Go to the people of all nations and make them my disciples. Baptize them in the name of the Father, the Son, and the Holy Spirit,
20 and teach them to do everything I have told you. I will be with you always, even until the end of the world." Matthew 28:19-20, HCSB
You may have heard this before. It's commonly referred to as the Great Commission. This is when Jesus gives His disciples their instructions on life after He's gone. Their job is to go replicate what He did in their lives within the lives of many many others.
This scripture is often examined during discipleship discussions; as it should be. The part that doesn't always get as much coverage is the fact that He tells them to be teaching. This command was not just for the disciples with Him then, but also for us as well.
So the question isn't, "Are you a teacher?"; but rather, "What are you teaching??".