I have taught privately on a one to one basis with subjects ranging from daily conversational Chinese for anyone who was curious :) to business Chinese for people who work for international firms and make frequent trips to China for negotiation purposes, etc.
Authentic northern Chinese cooking:
I was brought up on hearty, rustic homemade northern Chinese food. It is not the glow in the dark sweet 'n' sour you see in takeaways! I love cooking and sharing the experience of making healthy, traditional Chinese food and would love to teach anyone who is interested in cooking, and lovers of food like myself :)