English abstract
This study aimed to investigate the effectiveness of using the
Wittrock model in the acquiring geometric concepts and systemic thinking
among ninth graders. It used a semi experimental method, that was applied
to a sample of (52) students distributed among two divisions of the grade
ninth students, randomly selected from one of the schools affiliated to the
Directorate of Education in the Governorate of South Batinah. The students
were divided into two groups: an experimental group consisting of (26)
students who studied the unit of circle geometry using the Wittrock model,
and a control group consisting of (26) students who studied the same unit
by a traditional method.
To achieve the research objectives, the researcher designed a
teacher's guidebook for unit five which is about " circle geometry " based
on Wittrock model. Two tools were applied for this study, which are a test
designed by the researcher to examine the students' acquisition of geometry
concepts and a test to examine their systemic thinking. The semantic
validity and reliability of the study tools have been extracted in the
appropriate ways and they were found to be acceptable for the study
demands.
The results of this study revealed differences at the level of
significance (α = 0.05) between students mean scores in the experimental
and control groups in the post- test in both geometric concepts test and
systemic thinking test for the experimental group.
Based on the results, the researcher recommended the necessity of
applying Wittrock model in teaching Mathematics topics as the study has
shown positive impacts in acquiring geometric concepts and systemic
thinking among female students.
