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Andi Mariani Ramlan
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Mathematics

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THE EFFECT OF VAN HIELE LEARNING MODEL TOWARD GEOMETRIC REASONING ABILITY BASED ON SELF-EFFICACY OF SENIOR HIGH SCHOOL STUDENTS Andi Mariani Ramlan
JME (Journal of Mathematics Education) Vol. 1 No. 2 (2016): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v1i2.54

Abstract

The problem in this research is the low geometric reasoning abilities related to levels that van Hiele level 2 (abstraction ) and level 3 (deduction ) are not achieved its full potential. This research is a quasi experimental design with nonequivalen control group design. This is influenced by the students' ability to reason logically problem remains low, there has been no student's readiness or understanding of mathematical concepts is not optimal. Low student confidence shown from negative attitudes to learning. Based on the results of the study found that: 1) learning model van Hiele had a greater impact than conventional learning models to geometric reasoning abilities of students; 2) learning model van Hiele had a greater impact than conventional learning models to geometric reasoning skills in students who have high self-efficacy; 3) The learning model van Hiele had a greater impact than conventional learning models to geometric reasoning skills in students who have self-efficacy were; 4) There is no influence of van Hiele model of learning and conventional learning models to geometric reasoning skills in students who have low self-efficacy.
ANALYSIS OF THE STUDENTS’ GEOMETRIC REASONING ABILITY Andi Mariani Ramlan; Sri Muliana Ramlan
JME (Journal of Mathematics Education) Vol. 2 No. 1 (2017): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v2i1.250

Abstract

This research was a descriptive research with quantitative approach that aimed to analyze or describe the geometric reasoning ability of SMA Negeri 1 Wundulako students in solving mathematical problems related to the building of the three dimensions. Indicators used to describe students' geometric reasoning abilities include visualization, analysis, abstraction, and formal deduction. Data collection techniques consisted of interviews to deepen information about students 'geometric reasoning abilities and written tests to get an idea of students' cognitive abilities. Subjects in this study, namely students class XI.IA SMA Negeri 1 Wundulako as many as 40 students who have studied three dimensional materials. Data analysis in this research used descriptive analysis. Based on the data analysis obtained average value of 49.86, median 53.33, mode 66.67. The standard deviation was obtained at 22.39, it showed that there was a considerable difference of value between the students who mean in high ability category with the average of 91,11, medium ability category equal to 66,27, and low ability equal to 31,82 , With minimum value is 3.33 and maximum 93,33. In general, based on descriptive analysis, the geometric reasoning ability of SMA Negeri 1 Wundulako students was still low.
Co-Authors Sri Muliana Ramlan