I am Kenan Professor Emeritus of Astrophysics at Brandeis University. My expertise is in classroom, small group, and one-on-one instruction in physics of the first year. I have, however, taught at all levels from non-science major courses through the graduate curriculum.

My education includes a bachelor's degree in physics from Amherst College and a doctorate from Stanford University. During my career I spent time at the University of Illinois, Urbana-Champaign, the University of California, San Diego, the Massachusetts Institute of Technology, the California Institute of Technology, and Brandeis University, where I worked for nearly 40 years.

I am a firm believer that students learn in STEM fields only by doing, not by merely listening. Thus the core of any tutoring experience with me is working on problems. The most formative experience a student can have is to work through a problem, explaining each step to the tutor as he or she goes through it. Only by explaining the concepts and skills to someone else can one be sure of his or her own understanding.

My goal in any tutoring interaction is to assist the student in gaining the necessary skills, knowledge, and confidence to attack any conceivable problem set to him or her by a classroom teacher.