I have taught secondary mathematics for 15 years. Currently I teach high school Geometry and AP Calculus AB and BC. I taught for 3 years at a Bilingual school in Bangkok, 1 year at private school in USA, and 11 years at an international school in Bangkok, where I am the head of the Math Subject Area Curriculum Team. I have a Masters in Learning and Educational Technology, 2015, Liberty University, and BS Education from Kent State University, 2000. I have been using flipped instruction for about 5 years and have led training workshops for teachers at my school.