However, in some situations, in fact, teachers ought not find any solutions to encountering edicational problem by themselve more easily. I shall indicate these sample situations examples, e.g. it can make more better decision concerns that staff room discussions of assessment featured more prominently, discussons became more critical, academic, analytical, reflective than one teacher personal data gathering methos, interviews need to revealed changes over time in the extent to which teachers and management staffs were informed and anger to discuss educational reforming issues to the school's long term education stategy, staff appointments to discusson brought a more reasonable or irrational acceptance view to evaluate themselve teaching performance, staff meeting agenda and the time devoted to certain issues revealed changes of focus, teaching quality of all teachers' cooperation interactions and debate suggested how to improve their teaching performance to be better, inquiries were made to the educator or researcher about university courses and applications for advanced diploma/master degree or doctural degree university courses, teaching contents and enrollment requirements to enrolling students. The acting headteacher's liaisons with other schools including piloting records of achievements and assessment innovations, changes in role orientation and the stress level of the headteacher, the head's emphasis on reassuring whose teaching staffs. Hence, all these any one of educational problem(s) that is / are not easier to find the solutions from one teacher's data gathering method. Otherwise, a group management staffs and teachers meeting can find the more reasonable or irrational acceptance solutions to solve any one of those problems more easily because many educators can devote time to give themselves different unique personal opinions to evaluate whether whom opinion ought be chose to make the most reasonable or irrational judgement to decide whether which opinion is the best method to solve the problem more accurate. Hence, it means that none of all educating problems can be found the best solutions by the teacher himself/herself. Some of educating problems are needed to all teachers and management staffs appoint one long time meeting to discuss when opinion(s) is ( are) the best solution(s).However, some educational problems are needed to spend long time is devoted by teachers, after meeting. It is one experimental research. The steps include as below: First, the researcher must identify and define th research problem as precisely as possible, always supporting that the problem is followed by experimental methods. Second, the researchers must formulate hypotheses that he/she wished to test. This involves making predictions about relationships between specific variables at the same time making decisions about other vriables that are to be excluded from the experiment by means of controls, variable remember. They have two properties. First, they must be measurable, psysical fitness, for example is not directly measurable until it has been operationally defined. Making the vaiable " physical fitness" operational means simply defining it by letting something else that is measurable for it, gymnastics test, perhaps. Second, the proxy variable must be a valid indicator of the hypothetical variable in which one is interested. That is to say, a gymnastics test probably is a reasonable proxy for physical fitness. Thirs, the researcher must selct appropriate levels at which to test th indepedent variables. By way of example, suppose an educational psychologist wishes to find out whether longer or shorter periods of reading setting. The educational psychologist will hardly select 5 hour and 5 minute periods and appropriate levels rather, he/she is more likely to choose 30 minute and 60 minute levels, in order to compare with usual timetabled periods of 45 minutes duration.