You need tools to train your students to think biblically and logically about science, art, history and culture. Get first hand information from the mouths of atheists, humanist and religious leaders that you cannot get out of a text book. Many Christians cower in mindless fear at secularism's persuasive power. Yet, we are exhorted to be transformed by the renewing, not the removing of our minds.
Frances Scott Key, the author of our national anthem wrote, "I do not believe there are any new objections to be discovered to the truth of Christianity. Men may argue ingeniously against our faith, but what can they say in defense of their own?"
Now, you can learn how to engage people in conversation without fear. You can learn how to ask them to give you a reason for the hope they say they have.