Zhang Yichi, primary science department head, graduated from the University of Liverpool with a major in education. Thirteen years of teaching and teacher training experience. She has been invited as a guest teacher for open courses in national teaching seminars for many times. She has obtained the national excellent mentor certificate and the PYP course certificate issued by the IBO. She is skilled at integrated teaching, and organizing science fairs and other activities. Ms. Zhang is really talented and she is also good at using realia, interesting activities and experiments to enhance students' interest in learning. She believes in learning by doing and learning is for using.