Gili Marbach-Ad received a Ph.D. in Science Education in 1997 from Tel Aviv University for her dissertation on the subject of "Students' Conceptions in Genetics." Over the past fifteen years, she has been involved in numerous aspects of science education, including the development of study tools and the training of pre- and in-service teachers in Tel-Aviv University. From 2000-2006, Dr. Marbach-Ad was a faculty member with a tenure position, and the head of the Life-Science Education unit, at the department of Science Education at Tel-Aviv University. Currently, Dr. Marbach-Ad is the Director of the Teaching and Learning Center in the College of computer, Mathematical and Natural Sciences, University of Maryland (UMD). She is also a Research Associate Professor at the school of Education in University of Maryland (UMD).