To begin with, students need to learn various subjects in their secondary school. First and foremost, they should be educated about general knowledge. To be specific, most elementary schools provide basic information from how to write and speak to simple mathematics. Of course, it is true that their curriculum does not interfere with our lives. However, in order to function in society, it is essential to know more knowledge like understanding the economic situation or the process of trial. These things are too difficult for young children, from about 8 to 13, to learn, so that it is suitable for middle school ages.