The Effect of Employing Virtual Learning Environment in Teaching Science on of the Sixth Graders’ Achievement at UNRWA Schools in Nablus District

This study aims at investigating the effect of employing virtual learning environment of teaching science on the sixth graders’ achievement at UNRWA schools in Nablus District ,to investigate the following null hypothesis: * There are no significant differences at (α =0.05) in sixth graders' science achievement at UNRWA Nablus district schools ,between pre - post tests ,and material preservation for the controlled group. * There are no significant differences at (α =0.05) in sixth graders' science achievement at UNRWA Nablus district schools ,between pre - post tests ,and preservation for the experimental group. * There are no significant differences at (α =0.05) in sixth graders' science achievement at UNRWA Nablus district schools ,in post test , for the controlled and experimental groups. * There are no significant differences at (α =0.05) in sixth graders' science achievement at UNRWA Nablus district schools ,in preservation for the controlled and experimental groups. The study population consisted of the sixth Graders at UNRWA schools in Nablus District .The sample included (146) students from both sexes (= 14.22% of the study population).Each group consisted of a class (32) male students, and another of (41) female students. The researcher used an achievement test as a tool, about Force and Movement (two chapters of sixth grade science textbook),designed in consideration of the variety of mental abilities (according to Blooms classification). The tool was judged and approved by a specialized committee. The stability of the test reached(0.78). A Statistical Package of (6) virtual experiments (of the chapter about Movement and Power) was used ,the contents' reliability was approved by a group of referees. Statistical Analysis: The samples' responses were analyzed. The Statistical Package for Social Sciences (SPSS) was used to work out Mean, ANOVA(analysis of variance),and T-Test for two independent groups. The following results were displayed: *There were significant differences at (α=0.05) in achievement and material preservation for sixth graders between pre- and post-tests for the controlled group at all levels ,and at the total degree , for the sake of the post-test . * there were significant differences at (α=0.05) in achievement and preservation for the controlled group , between pre and post tests at all levels ,and at the total degree, for the sake of post –test. * There were no significant differences at (α=0.05) in science achievement for sixth graders at Nablus district UNRWA schools, between the two target groups pertaining preserving science material ,remembering ,comprehending and constructing ,besides the total degree of the post test, whereas there were significant differences in application, analyzing ,and assessment for the sake of the experimental group. * There were significant differences at (α=0.05) in science achievement and preservation, for sixth graders at Nablus district UNRWA schools, between the two target groups for the sake of the experimental group. The researcher recommended the necessity to employ virtual learning environment in teaching science for all graders , along with modern technology .More research concerning virtual learning environment effect on other grades, should be carried out.