some people believe that single sex schools provide more equal opportunities for students to study different subjects than their counterparts in mixed sex schools do, while there are still some advantages to studying in co-ed schools. Single and mixed sex schools co-exist in many countries as we know. Students who study in single sex schools can avoid the distraction from opposite sex schoolmates and focus on what they should learn. Furthermore, as for female pupils, they are more likely to have the chance to study science at a higher level without the competition from the male students. However, some experts argue that it is more natural to put male and female students together. That seems to be right to some extent. By collaborating with opposite sex students, it can definitely increase the interest of study and help them understand how to efficiently work with people from different genders. For instance, in order to attract female students' attention, the male usually study hard in class to show his manner. Likewise, girls are the same as boys. From my point of view, I don't care at all.