الفهرس 
الاطار العام للبحثيوجد فقط 14 صفحة متاحة للعرض العام
 |  | from | 425 |  |  |
| | | from | 425 | | |
المستخلص
Research Objectives: 1- To identify prep 2nd-grade students’ alternative conceptions concerning concepts of outer space unit ”planets and stars” in science subject. 2- To build conflict maps of the chosen unit concepts (outer space ”planets and stars”) in prep 2nd-grade science subject. 3- To investigate how effective conflict maps are in the modification of prep 2nd-grade students’ alternative conceptions concerning concepts of outer space unit ”planets and stars”? 4- To examine how effective conflict maps are in prep 2nd-grade students’ long-lasting learning?. Research sample: the research is confined to a sample of 2nd-grade students from Dimooh Coeducational Prep School (experimental group) and Salah Salim Prep School (control group) at Dikirnis Educational Administration in Dakahlia Governorate. Academic content: the research is also restricted to the academic contents of the outer space unit (planets and stars) included in the science book titled You and Science and decreed for the prep 2nd-grade students in the A/Y 2007/2008. Research Tool: An alternative conceptions test on concepts of outer space unit (planets and stars) for the prep 2nd grade (designed by the researcher). Research Findings: 1- Prep 2nd grade students have alternative conceptions concerning the concepts of outer space unit (planets and stars). 2- There are statistically significant differences at a level of 0.01 between the mean marks of experimental group students (taught by contrastive maps) and control group students (taught by traditional method) in the alternative conceptions posttest. The posttest is in favor of the experimental group. 3- There are statistically significant differences at a level of 0.01 between the mean marks of experimental group students (taught by contrastive maps) and control group students (taught by traditional method) in the delayed alternative conceptions posttest. The delayed posttest is in favor of the experimental group. 4- Statistically significant differences are also seen at a level of 0.05 between the mean marks of experimental group students in the pretest, posttest, and delayed posttest on the alternative conceptions.