Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal JOURNAL OF SONGKE MATH
Ricardus Jundu
Unika Santu Paulus Ruteng
Education Mathematics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.43 KB)

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 Model Pembelajaran Problem Solving Terhadap Kemampuan Pemecahan Masalah Matematika Siswa SMK Emilianus Jehadus; Ricardus Jundu; Silfanus Jelatu; Aleksander Ecan Gayus
JOURNAL OF SONGKE MATH Vol. 2 No. 1 (2019): June Edition
Publisher : UNIKA SANTU PAULUS RUTENG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.06 KB)

Abstract

This study aims to compare the mathematical problem solving abilities of students who use problem solving learning models with direct learning models in the linear program material of the first grade students at SMK Informatika St. Petrus Ruteng in academic year 2018/2019. This research is an experimental research using the design of Posttest-Only Control Design. The population of this research is all students of class X SMK Informatics St. Petrus Ruteng which amounted to 213 people divided into 6 classes with details of the first TKJ 36 people, TKJ II 36 people, TKJ II 36 people, TKJ IV 35 people, TKJ V 35 people and TKJ VI 35 people. Sampling is done by random class. The number of members of the study sample was 71 people. Data on problem solving abilities were collected by a description test. Data were analyzed using t-test calculations with the polled formula variant. Based on the results of data analysis, it was found that the results of t_count = 3.132 and t_table = 1.995 at significant level α = 5% and degrees of freedom = 69. Because t_count> t_table then H_0 is rejected and H_1 is accepted, which means that mathematical problem solving abilities of students using models Problem Solving learning is better than students' mathematical problem solving abilities using direct learning models in linear program material.
Co-Authors Aleksander Ecan Gayus Emilianus Jehadus KANISIUS MANDUR . Silfanus Jelatu Yohanes Kurniawan