The teaching of evolution is certainly one of the most difficult aspects of any life science course. This subject requires of the student an appreciation of the concepts of time and of change not the time durations of our own experiences (hours, days, years), rather, periods of thousands and millions of years. Geological change presents enough problems in comprehension. Rapid cataclysmic change, such as the recent volcanic eruptions of Mount St. Helens in Washington, catches our attention, but the more gradual forces of nature action of the wind and waves, slow erosion, sedimentation, continental drift can be understood only with a deeper insight. To accept the notion of long term biological change is something which requires a fair amount of substantiation, particularly when religious views seem to be in conflict with scientific thought. I believe that too frequently the student is not given sufficient opportunity to examine the evidence for organic evolution. It is difficult to appreciate such a fundamental theory of biological science when one doesn't have ample time to learn about it.