School observation is a practical and direct approach to evaluate a school. Maybe it is easy to know a school from many 38 of information, such as media report, government documents and school publications. However, it is difficult to judge a school. There is a 39 between reports and truths because possibly some bias and blind spots 40 in the information. In other words, a school highly 41 by parents and the society may not be satisfactory. Instead, spending a period of time making observations or 42 will be one of the best ways to understand how a school is running. The process of observation can also be 43 for school improvement.