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Yohanes Kurniawan
Unika Santu Paulus Ruteng
Education Mathematics

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Relasi Antara Visualisasi Spasial Dan Orientasi Spasial Terhadap Pemahaman Konsep Geometri Ruang Silfanus Jelatu; Kanisius Mandur; Ricardus Jundu; Yohanes Kurniawan
JOURNAL OF SONGKE MATH Vol. 1 No. 1 (2018): June Edition, 2018
Publisher : UNIKA SANTU PAULUS RUTENG

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Abstract

Geometry is one of the critical subjects of mathematics. It includes concepts as points, lines, planes, space and their relations. Representations of three-dimensional objects using two-dimensional diagrams bring the difficulties of identification of their properties. The subfactors of spatial ability were identified as the primary variables in the performances of students related to geometry subject. The purpose of this study is to investigate the relationship between spatial visualisation and spatial orientation to the students understanding of space geometry concepts matter of the eighth-grade students. There are 60 eighth grade students as a sample of the study. The reliability and the validity studies of the tests were carried out In the first part of the study. In the second part, correlation and regression analyses were carried out. Significant correlations were found between each factor. For clarifying the relationships between more than one-factor multiple regression analyses were used. The results showed that the two predictor variables explained the 65,61 % of the variance in plane geometry test scores. However, a degree of contribution of each factor differed. The relative impact of spatial orientation ability (B=. 55) was higher than the spatial visualisation ability (B=. 28).
Pengaruh Pendekatan Contextual Teaching And Learning Terhadap Kemampuan Koneksi Matematis Siswa Maria Indrawati Widonda; Bedilius Gunur; Yohanes Kurniawan
JOURNAL OF SONGKE MATH Vol. 1 No. 2 (2018): December Edition
Publisher : UNIKA SANTU PAULUS RUTENG

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Abstract

The goal of this research is to know the students’ mathematical connection skill improves well by using contextual teaching and learning (CTL) than using conventional approach. This research is pseudo experiment, using research design posttest only control group design. The population in this research is 95 students from three different classes. The sampling technique used is random sampling, in which the equality test priorly applied. The data collection intrument is a test. Before analysing data, it is priorly conducted analysis prerequisite test, which is a homogeneity and normality test. The data is analysedusing . Based on the analysis, the result of this research is that is so is rejected and is accepted meaning the students’ mathematical connection skill improves well by using contextual teaching and learning (CTL) than using conventional approach.
Co-Authors Bedilius Gunur Kanisius Mandur Maria Indrawati Widonda Ricardus Jundu Silfanus Jelatu