Problem Solving
Regardless of what we are doing in our life, we, as a human always facing so many kind of problem. Most problem are very easy, but some other is very hard and sometime complicated, but they all need to be solved in a satisfactory way.
Problem is defined as the difference between the reality (current state) with the one you expected (goal state). For example, in the class room, we want the student to understand what being taught by the teacher (goal state) but the fact is the students still do not understand. This become a problem, thus we need to do something to solve the problem, as it called “Problem Solving”.