From the very beginning when i was student in the secondary schools and even before that loves to teach my juniors and classmates with any kind on problems. Helping as much as possible to make sure you have ful l grasp on the topic. More deviated towards random funny examples to make sure you remember and perform easily. Practical knowledge is what i prefer more than the subjective style. Can't promise full marks all the time but the topic would be worth remembering for lifelong. + more - less