Being in a study group is a lot cheaper than working individually. Why is that?
For two major reasons. First, because it’s been my experience that working in study groups helps a great deal in learning math (I talk about this in my Tips for Success in Your Math Class). And, second, because it’s easier on me and a better use of my time to work with groups of people working together than to work with each of them separately, and it only seems fair to reflect that in my pricing.