I have a long experience of 22 years of teaching chemistry. My first aim in all my classes is to know the prior knowledge of a student. Based on the prior knowledge I build the whole lesson plan and add variety of techniques and tools so that the lesson is much easier for students to learn the concepts. My classes are mostly enquiry based so that the students are fully involved i the lessons. Practice questions are given to the students during the lessons and worksheets are given for further practice and prepare for the exams.