The Global Education (GE) Project in Iran is a four-year experiment that started in 2001-2002 academic year with the cooperation of the United Nations' Children Fund (UNICEF) in Iran. In this paper, the third phase of the project, implemented at the Guidance School's second grade level, in three areas of inputs, processes, and outputs is comprehensively evaluated. Methods used in this study were the following: Content analysis and evaluation of 68 learning activities; observing 200 instructional sessions; 19 school principals, 82 second grade teachers, 154 parents, and 162 second graders responded to the questionnaire; 20 principals, 69 teachers, 81 parents, and 110 second graders were additionally interviewed; the achievement scores of 1571 second graders (764 experimental and 807 control) on seven subjects in the first semester, and of 1637 students (729 experimental and 897 control) in the second semester were collected; and the performances of 311second graders (176 experimental and 125 control) on the performance test were evaluated. The findings indicate that the content of most activities were simple, clear, and comprehendible; method of implementation in all activities has been either collective or collective-individualistic and student-centered; and in designing the activities more attention has been given to skills, attitudes and knowledge, respectively. The training courses conducted for teachers and principals have been effective in increasing their knowledge of active methods. The average performance of the teachers in areas like "their orders being clear, students' motivation and interest, facilitating all students' participation, and taking advantage of both verbal and non-verbal communication" has been as desired. However, their average performance in areas like "showing creativity while engaged in the activity, tying to link the activity to the global issues; to previously covered material as well as to their daily lives, and connecting the present to the past and future"; is indicative of their inadequacy. Furthermore, they were unable to be "challenging and accompany students in their attempt at facing the challenges, asking questions, and commenting in the classroom". The Project has been faced with difficulties in the following areas during the course of implementation: "necessary educational facilities and spaces, time allotted, high volume textbooks and courses, activities being tiresome for teachers, activities not being that attractive to some students that lead to their lack of participation, teachers' inadequate knowledge and skill in doing the activities, disputes among students over group membership and leadership, teachers high volume of work, and finally the evaluation system used".
Although the average performance of experimental and contrast (comparison) groups of students in the seven subject matters across two semesters is almost identical, in math, the experimental group slightly has out performed the other group. Despite the fact that the frequency of the correct responses given by the experimental group in areas of skills and knowledge was higher than that of the other group, but the slight difference was not statistically significant.