Science is usually taught in one of two ways. The spiral approach has students survey many topics each year, eventually revisiting previously-studied topics to go into more depth. The immersion approach spends an entire semester (or year) on one subject, covering it in depth. In this seminar, Dr. Wile discusses a different method for teaching science in the elementary years: covering science topics chronologically. Science was learned in a chronological sequence as early scientists developed ideas that were tested and improved by later scientists. Teaching science this way has several advantages, which Dr. Wile will discuss.