The universe of topics to choose from when teaching an astronomy course is astronomically immense. This wide array of opportunity presents some inherently difficult choices for teachers at all levels on how to limit the scope of the course to make the syllabus manageable. As but one example, consider that even the most experienced astronomy…

Describes the use of an exploratory computerized approach to introduce first-year physics students to the ramifications of Newton's third law of motion. (JRH)