Kirsten teaches flute and whistle via The Online Academy of Irish Music.  For more information on the courses she teaches, check out the links below:

Whistle Basics (beginner) http://oaim.ie/whistle-basics

Whistle Foundations (intermediate) http://oaim.ie/tin-whistle-foundations

Flute Foundations (intermediate) http://oaim.ie/flute-foundations

Flute Progressions (Intermediate / advanced) http://oaim.ie/flute-progressives