In my last job, as a secondary science teacher, I was in charge of the IGCSE chemistry (British) teaching as well as Junior Canadian Chemistry Olympiad (JCCO) training work. I opened advanced chemistry sessions for capable students in order to unlock their potential and better prepare for chemistry competitions. I independently developed training system for JCCO as well as CCC (Canadian Chemistry Contest). I ran PBL(Project Based Learning) sessions, science fair and open day experiment demonstration involving self-made sprite, golden rain and indicators based on vegetables. IGCSE Final Exam Outcome: 63% of students achieved Grade A* (the highest) 83% of students achieved Grade A (the 2nd highest) JCCO Outcome: 90% of students were awarded I tutored about 30 secondary school and university students from China & Australia in the long term. While teaching students, I would like to show them how I organise and sequence significant bullet points. Also I offer to build up networks of knowledge consisting trivial knowledge required by syllabus, so that students will integrate their understanding as a whole and deepen their understanding in this field.