The purpose of the study was to examine the impact of using AR in the Computer Architecture unit for male 11th grade students in a school in the eastern area of Arar City in Saudi Arabia through monitoring its impact on student achievement and students' perceptions of the learning environment. Two research questions are explored: What is the effect of using AR on student achievement, and what are students' perceptions of the learning environment when they use AR? Two instruments were used to collect the data in this study: an achievement test taken from the official teacher book issued by the Ministry of Education in Saudi Arabia and the Technology-Rich Outcomes-Focused Learning Environment Inventory (TROFLEI) modified questionnaire "actual form." Statistical analyses employed to answer the first research question included an independent-samples t-test and descriptive statistics. To investigate the second research question, descriptive statistics and a paired t-test were used. These results from the first question indicate a statistically significant difference (p < 0.05) between the two groups' mean values: the students who used AR achieved a higher level of learning compared to the students who learned in the traditional way. The study found that using AR helped the students to increase their achievements through many aspects, one of which was being able to feel in contact with objects and events that were physically out of their reach. In addition, AR offered a safe environment for learning and training away from potential and real dangers. The results for the second research question show statically significant increases in seven out of eight TROFLEI scales. This suggests that there was a positive feeling among the students regarding the teacher's interaction and his interest in providing equal opportunities to the students to answer the questions.

Science teaching at the secondary level can be made more effective with the judicious utilization of a multi-media approach involving modem information and communication technologies that is entering the Indian educational system in general and the schools in Jammu region (J&K State), in particular, surely but slowly. A major impact of technology today in the field of education is that at all levels classrooms are becoming technology-rich learning environments and as such there is a need to conduct research to study the learning environments of technology-supported classrooms. The study described in this thesis utilized the Technology-Rich, Outcomes-Focused Learning Environment Inventory (TROFLEI), to study the perceptions of students' actual and preferred classroom learning environment in a technology-supported science classroom at the secondary level in an Indian school situation. An important aspect of this research was to determine the reliability and validity of this scale for use in Indian classroom settings. An attitude scale derived from the Test for Science Related Attitudes (TOSRA) for studying the attitude of students towards science was also employed and lastly the Questionnaire on Teacher Interaction (QTI) was used to analyze the teacher student interactions in a technology-supported science classroom environment. Data for research were collected from 700 secondary students in a co-educational Indian school in the city of Jammu. / The study reported that the TROFLEI and the QTI were reliable and valid instruments for assessing the psychosocial learning environments III a technology-supported classroom and the teacher-student interactions III such environments. Significant associations are also reported between the students' perceptions of their technology-supported learning environment and their perceptions of the teacher-student interactions with three learner outcomes; attitude towards science, academic efficacy and academic achievement. Significant gender differences in technology-supported learning environments have also been reported in this study. This research study happens to be the first of its kind in this region and should provide a thrust towards the use of technology-supported classrooms for effectively teaching other school subjects.