Have you ever thought, what is the main fact by which all countries are evaluated? There would probably be many different answers, but it is obvious that the economic conditions of all countries are the main factors that show the level of development of these countries. Of course, governments of all countries are trying their best to increase their economic status. There are many factors that positively influence the economic situation, but it is indisputable that the main circumstance necessary to achieve this goal is a well-educated society. So, to solve this problem, first, the government must start from the young generations, because they are the future of the country. It is evident that, to increase students' cognitive abilities, policymakers need to improve the education system, which will make the study process more productive and, of course, provide a good atmosphere for students to study. Many different researches have been conducted in this field, and finally, scientists have detected many problems and factors that have a negative effect on the educational process. Furthermore, they found that not all factors hinder the study of all students; there are also some circumstances that prevent access only to special groups of students. For this reason, many different teaching methods, such as reducing class sizes and restricting teaching rules, are practiced in different countries around the world in order to improve students' academic performance. Additionally, researchers reported that there are some conditions that have beneficial effects on academic studies only on one specific sex, not both. One teacher (Gurian, 2001) stated that he had taught for twenty years and, if he had learned anything, it was that while boys and... half the paper... and that separately both sexes remove all the stereotypes they have prevented from expressing their hidden talents and statistics specifying incredible results in entrance exams, make us believe that our society really needs such an education system. But, on the other hand, some scholars who have illustrated the disadvantages, such as the deterioration of behavior, the decrease in academic performance and the difficulties in interaction between people of the opposite sex which have negative consequences, make us doubt the beneficial effects of single-sex education. . Of course, sex education gives some benefits to both men and women in their studies, but it is well known that it all depends on the person himself. So, if a student wants to study, if he has the goal of studying well and being successful in life as a whole, he will do so, despite any factor.