I believe most of our students will go to school or university and have their lessons in various topics. Therefore, I don't like to deliver lessons similar to their schools and universities. However, some students will find some topics in Physics hard to understand and they will gradually lose their interest. I'll solve their doubts and make them learn happily. Others may find that they don't have interest in some special content, for example some calculation, because they don't know their intention. I'll explain to them the reason for learning and enhance their power.