As a general rule, we find the most of our customers are comfortable paying between $5-7 per class session. A full semester class which runs 15 sessions can easily be priced at $75.00-$105.00. Experienced teachers can pull a higher price point, especially if they are offering grading and a good deal of feedback for students.
Whatever you decide, be sure to factor in the time you need to spend preparing for class. If you provide all handouts and class materials, you can definitely get a higher price for your class.