The aim of this research was to investigate the relationship between teachers’ effective teaching skills and the students’ academic achievement in computational courses according to a process-product approach. Here, the correlation between processes (teaching skills of teachers) and products (the performance of students in final provincial examinations) were calculated. For this purpose, the teachers’ teaching skills was measured using a researcher-made questionnaire. The questionnaire was designed according to the curriculum and the dominant teaching method in computational courses in Iran’ secondary education. The teachers as research sample were selected using a cluster sampling method. The number of the collected questionnaires was 175 and the reliability of the questionnaire was estimated around 0.92 according to the Cronbach’s Alpha coefficient. At next stage, the lists of students’ final scores for each teacher were provided. At the initial analyses, it became clear that the teaching skills are interwoven with the teachers’ gender. It was also revealed that a considerable part (around 40 percent) of variance of students’ academic achievement could be explained by the variable of school type. The final analysis showed that female teachers’ attention to components such as flexibility in teaching, tendency toward mastery of students, clarity in presenting the lessons, supporting student learning, self-empowerment and utilization of others’ perspectives, diversity in teaching, giving assignments, and supervising and controlling homework are significantly related with their students’ academic achievement. On the contrary, the scores of male teachers’ students who persuade students to the pre-study of the lessons, who do multiple checking of students’ learning, and tend to do more evaluations and quizzes were significantly better, compared with the scores of female teachers’ students with inclination to these skills. It seems that the different way of the use of the effective teaching methods by male and female teachers, has different consequences on the students’ academic achievement

The main purpose of this research is, an investigation to Iranian virtual university  teachers having rate teaching skills in these courses. Virtual learning teachers need for a variety of teaching skills which are different from the attendance learning environment. Salmons e-moderator (2004) model is the basic model of this research that for researcher made questioner these were applied. For selecting research sampling, multi stage sampling method was used and 378 students from three virtual universities such as; Mehr e Alborz, Esfahan and Sahand were selected. Data analyzes with using descriptive statistical indexes and one sample T test showed, Iranian virtual university teachers have not most of virtual teaching skills such as; designing and mentoring instructional process, mastering in technological tools and student technical supporting, promoting students to deep thinking, evaluating learning process, presenting instructional objectives, designing learning activities and presenting feedback to students and respecting to individual differences. Also korscal valise test showed, these three universities were different in these skills.

Different methods are used for teacher's evaluation; one of these methods is using students comment. Despite development of educational evaluation by students, it doesnt exist a positive attitude for this process because of different factors affection. This study was conducted to investigate factors affecting teacher's evaluation from student's viewpoint and its relation with educational achievement. In this descriptive analytical study, 554 participants studying at Kermanshah University of Medical Sciences in 2013 were selected using simple random sampling. Self-administered questionnaire was used to collect data which consisted of 37 questions with Likert scale ranging from very high to very low rating of 1 to 5, respectively. Questions included five areas of teaching skills (7 items), teacher's personality characteristics (16 items), students’ personality characteristics and attitudes (6 items), physical characteristics and time course (4 items), and evaluation process at university (4 items). Content validity of the questionnaire determined by respective experts, and its reliability was calculated 0.73 through chronbach's alpha test. Affecting factors on teaching skills and student's personality fields with teachers evaluation and educational achievement were not significantly related. Although, result showed that student's personal characteristics and attitude besides time of course presentation were factors that had significant relationship with students educational achievement in their teachers evaluation (p=0.04, p=0.37). Regarding no significant relationship of teaching skills and teacher's personal characteristics with students educational achievement, it seems that student's scientific level in teachers evaluation is ineffective factor, therefore, factors affecting teachers evaluation can be reduced by altering forms and educational curriculum.