How do I check tranny fluid in 98 cavalier

Thanks for the info Greg. I saw the red threaded cap and took that off and then looked in it with a flashlight but could not see any fluid at all. But, I did not know about the fluid level screw. I have no idea when fluid was ever changed. Was given car by my brother at 171,000. He did not show much love to this vehicle. I am amazed that it was soo forgiving and is still running.