How do I use basal body temperature and cervical mucus to predict ovulation?

http://www.babycenter.com/chart-basal-body-temperature-and-cervical-mucus?page=2

Charting your basal body temperature and cervical mucus can help you look back on your cycle and see when ovulation happened (typically it's two or three days before a sustained rise in temperature and right on or after the last day of egg-white cervical mucus).