چکیده (انگلیسی):

ABSTRACT: The current study is generally intended to study on role of 5S system in learning enrichment of girls’
high schools from Area No 5 at Tehran city from viewpoint of teachers. This investigation is of applied type from its
objective aspect and it is of descriptive- survey based on methodology. Statistical population of this study
comprises of all high school teachers, who were employed in area No 5 at Tehran city, i.e. totally 1483 participants.
Sample size was computed according to Morgan’s table as 377 respondents that were chosen by means of simple
randomized sampling technique. Data collection tool, which used for this study, was 40- question standardized
questionnaire where its scoring range was based on LIKERT Scale. To examine questionnaire reliability, Cronbach
Alpha Coefficient Test was adopted. The value of questionnaire’s validation is 0.94. In data analysis section,
Kolmogorov- Smirnov test was initially utilized. With respect to abnormality of data, Chi- Square Non- Parametric
Test and Friedman Test were adopted to test study hypotheses. Results of this study indicated that all components
of 5s System play role in improvement of learning at high schools; however, with respect to Friedman test, it has
been shown that in terms of order preference, these five elements are ranked respectively as follows: Shine (S3),
then Sort (S1), Standardization (S4), Set (S2), and Sustain (S5).