I have a Ph.D. in theoretical chemistry and material, and two master degrees in theoretical physics and solid state physics. I have ample experience in teaching all the courses related to physics, chemistry, and mathematics. Sometimes courses based on a strong mathematical background cause problems for many students that their mathematical basis is weak, therefore they cannot follow the courses. This leads to them get bored and give it up. I usually try to start my course from the basic and elementary step and examples. I try to encourage students as much as possible. There are many fundamental physics phenomena in our daily life. I try to make examples from these phenomena to solve the difficult physics problems. This makes students more interested in what they are learning and how they apply the physics and mathematics rules to solve problems even in their life.