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RELASI ANTARA VISUALISASI SPASIAL DAN ORIENTASI SPASIAL TERHADAP PEMAHAMAN KONSEP GEOMETRI RUANG Jelatu, Silfanus; Mandur, Kanisius; Jundu, Ricardus; Kurniawan, Yohanes
JOURNAL OF SONGKE MATH Vol 1 No 1 (2018): June Edition
Publisher : STKIP Santu Paulus Ruteng

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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).

Analisis Kemampuan Pengajuan Soal Calon Guru Sekolah Dasar Ditinjau dari Tingkat Disposisi Matematis Men, Fulgensius Efrem; Mandur, Kanisius; Jelatu, Silfanus
JOURNAL OF SONGKE MATH Vol 1 No 2 (2018): December Edition
Publisher : STKIP Santu Paulus Ruteng

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Problem-posing ability is the ability to make and solve math problems. This research is qualitative research that aims to describe the ability to submit questions about prospective elementary school teachers concerning mathematical disposition. The subject of this research is the students of prospective school level teachers in the 6th semester, amounting to 3 people. The results of this study are (1) prospective primary school teachers with a high mathematical disposition can submit questions based on the information given related to addition and subtraction of ordinary and mixed fractions, the problem presented are in accordance material with moderate difficulty level, able to solve the problems posed with using a good language structure, (2) prospective primary school teacher with a moderate mathematical disposition level can form a story question based on additional information and subtraction of ordinary fractions, the questions submitted are in accordance material with a relatively low difficulty level and using a good language structure. However, unable to solve the problems raised, and (3) prospective primary school teachers with a low mathematical disposition level are not able to ask questions based on the two information provided. The prospective teacher has difficulty making a story question. These conditions have an impact on not fulfilling several other criteria, among others, conformity with the material, answers to the problems raised, language structure and the difficulty level of the question. The results of the study provide recommendations for policymakers on campus to help prospective students of elementary school teachers to develop problem-posing ability according to the level of mathematical disposition.

Analisis Kesulitan Menyelesaikan Masalah Matematis Bermuatan HOTS Ditinjau dari Kemampuan Matematis Jelatu, Silfanus; Ali, Ferdinandus Ardian; Murni, Viviana
JOURNAL OF SONGKE MATH Vol 1 No 2 (2018): December Edition
Publisher : STKIP Santu Paulus Ruteng

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This study was conducted to determine the causes and location of student difficulties in solving mathematical problems with HOTS based on the mathematical connection skills they have. This research using qualitative methods, and was conducted in the even semester of the 2017/2018 academic year at STKIP Campus Santu Paulus Ruteng. The research subjects were selected using purposive sampling technique. The selected items were three students of the STKIP Santu Paulus Ruteng Mathematics Education Study Program, with categories namely one student capable of deep mathematical connections, one student capable of moderate mathematical connections, and one student capable of high mathematical connections. The selection of subjects from each of these categories is based on the results of the identification of problems that have been carried out during the initial observation. The instrument in this study was the researchers themselves. Besides, researchers use supporting instruments, namely tests and guidelines for interviews. In conducting interviews, researchers conduct structured and unstructured interviews. The technique of data collection is done by giving written tests and interviews conducted through the triangulation process. The triangulation process aims to obtain valid data carried out by conducting repeated interviews at different times to the same research subject. The interval between the first phase of the interview with the next stage is 14 days, and because the data is saturated, so the data collection stops. Data analysis is carried out when data collection takes place, and after data collection is carried out. The steps in analyzing the data using the Miles and Huberman analysis models, namely 1) reducing data, 2) presenting data, and 3) concluding. The results showed that, in solving mathematical problems with Hots, the subject of KKMR only relied on factual knowledge but had difficulties in using conceptual, procedural and metalogical knowledge, while the KKMS subject could only use factual and procedural knowledge but had difficulty using procedural knowledge and metacognition, while KKMT subjects only had difficulty in using their metalogical knowledge but did not experience difficulties in using factual, conceptual and procedural knowledge. Learning difficulties experienced by each subject are caused because they do not often practice mathematical solving with Hots when learning mathematics.

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)

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).

Analisis Kemampuan Pengajuan Soal Calon Guru Sekolah Dasar Ditinjau dari Tingkat Disposisi Matematis Fulgensius Efrem Men; Kanisius Mandur; Silfanus Jelatu
JOURNAL OF SONGKE MATH Vol. 1 No. 2 (2018): December Edition
Publisher : UNIKA SANTU PAULUS RUTENG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.184 KB)

Problem-posing ability is the ability to make and solve math problems. This research is qualitative research that aims to describe the ability to submit questions about prospective elementary school teachers concerning mathematical disposition. The subject of this research is the students of prospective school level teachers in the 6th semester, amounting to 3 people. The results of this study are (1) prospective primary school teachers with a high mathematical disposition can submit questions based on the information given related to addition and subtraction of ordinary and mixed fractions, the problem presented are in accordance material with moderate difficulty level, able to solve the problems posed with using a good language structure, (2) prospective primary school teacher with a moderate mathematical disposition level can form a story question based on additional information and subtraction of ordinary fractions, the questions submitted are in accordance material with a relatively low difficulty level and using a good language structure. However, unable to solve the problems raised, and (3) prospective primary school teachers with a low mathematical disposition level are not able to ask questions based on the two information provided. The prospective teacher has difficulty making a story question. These conditions have an impact on not fulfilling several other criteria, among others, conformity with the material, answers to the problems raised, language structure and the difficulty level of the question. The results of the study provide recommendations for policymakers on campus to help prospective students of elementary school teachers to develop problem-posing ability according to the level of mathematical disposition.

Analisis Kesulitan Mahasiswa Dalam Menyelesaikan Masalah Matematis Bermuatan Hots Ditinjau Dari Kemampuan Koneksi Matematis Ferdinandus Adrian Ali; Viviana Murni; Silfanus Jelatu
JOURNAL OF SONGKE MATH Vol. 1 No. 2 (2018): December Edition
Publisher : UNIKA SANTU PAULUS RUTENG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.487 KB)

This study was conducted to determine the causes and location of student difficulties in solving mathematical problems with HOTS based on the mathematical connection skills they have. This research using qualitative methods, and was conducted in the even semester of the 2017/2018 academic year at STKIP Campus Santu Paulus Ruteng. The research subjects were selected using purposive sampling technique. The selected items were three students of the STKIP Santu Paulus Ruteng Mathematics Education Study Program, with categories namely one student capable of deep mathematical connections, one student capable of moderate mathematical connections, and one student capable of high mathematical connections. The selection of subjects from each of these categories is based on the results of the identification of problems that have been carried out during the initial observation. The instrument in this study was the researchers themselves. Besides, researchers use supporting instruments, namely tests and guidelines for interviews. In conducting interviews, researchers conduct structured and unstructured interviews. The technique of data collection is done by giving written tests and interviews conducted through the triangulation process. The triangulation process aims to obtain valid data carried out by conducting repeated interviews at different times to the same research subject. The interval between the first phase of the interview with the next stage is 14 days, and because the data is saturated, so the data collection stops. Data analysis is carried out when data collection takes place, and after data collection is carried out. The steps in analyzing the data using the Miles and Huberman analysis models, namely 1) reducing data, 2) presenting data, and 3) concluding. The results showed that, in solving mathematical problems with Hots, the subject of KKMR only relied on factual knowledge but had difficulties in using conceptual, procedural and metalogical knowledge, while the KKMS subject could only use factual and procedural knowledge but had difficulty using procedural knowledge and metacognition, while KKMT subjects only had difficulty in using their metalogical knowledge but did not experience difficulties in using factual, conceptual and procedural knowledge. Learning difficulties experienced by each subject are caused because they do not often practice mathematical solving with Hots when learning mathematics.

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

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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.

Profil Kemampuan Koneksi Matematis Siswa SMA Ditinjau Dari Disposisi Matematis Pada Masalah Fungsi Komposisi Kanisius Mandur; Fulgensius Efrem Men; Silfanus Jelatu
JOURNAL OF SONGKE MATH Vol. 2 No. 1 (2019): June Edition
Publisher : UNIKA SANTU PAULUS RUTENG

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Kemampuan koneksi matematis merupakan kemampuan untuk mencari hubungan inter topik, antar topik, suatu topik dengan ilmu lain, atau suatu topik dengan masalah dalam kehidupan sehari-hari dalam bidang matematika. Kemampuan koneksi merupakan salah satu aspek yang harus dimiliki siswa agar berprestasi dalam belajar matematika. Penelitian ini merupakan penelitian kualitatif yang bertujuan mendeskripsikan profil kemampuan koneksi matematis siswa sekolah menengah atas (SMA) pada masalah fungsi komposisi. Penelitian ini melibatkan 36 orang siswa sekolah menengah atas dan dipilih 3 orang siswa sebagai subjek utama. Data kemampuan koneksi matematis dikumpulkan melalui tes, tugas, dan wawancara tidak terstruktur sesuai dengan tugas yang diberikan. Data dianalisis secara kualitatif untuk memahami, menelaah, dan menafsirkan koneksi matematis siswa sekolah menengah atas pada masalah fungsi komposisi. Hasil penelitian menunjukkan bahwa (1) siswa sekolah menengah atas dengan tingkat disposisi matematis tinggi memiliki kemampuan koneksi matematis yang baik. Siswa tersebut mampu melakukan koneksi baik inter topik maupun antar topik. Selain itu juga, mampu melakukan koneksi materi matematika dengan bidang lain maupun materi matematika dengan kehidupan sehari-hari, (2) siswa sekolah menengah atas dengan tingkat disposisi matematis sedang memiliki kemampuan koneksi matematis yang cukup baik. Siswa tersebut mampu melakukan koneksi baik inter maupun antar topik dalam matematika. Namun, belum dapat melakukan koneksi matematika dengan bidang lain atau koneksi materi matematika dengan kehidupan sehari-hari, dan (3) siswa sekolah menengah atas dengan tingkat disposisi matematis rendah memiliki kemampuan koneksi matematis yang kurang baik. Siswa SMA dengan tingkat disposisi matematis yang rendah mampu melakukan koneksi inter topik dalam materi matematika. Namun, siswa tersebut masih sangat kesulitan dalam melakukan koneksi antar topik dalam matematika, dan juga kesulitan dalam melakukan koneksi materi matematika baik dengan bidang lain maupun dengan fenomena dalam kehidupan sehari-hari. Hasil penelitian ini memberikan kontribusi berupa masukan dan rekomendasi bagi guru matematika dan penentu kebijakan di sekolah menengah atas agar membimbing dan meningkatkan kemampuan koneksi matematis siswa sesuai dengan tingkat disposisi matematis.

Pengaruh Pembelajaran Saintifik Bermuatan Kearifan Lokal terhadap Prestasi Belajar Matematika Sebastianus Fedi; Ferdinandus Ardian Ali; Silfanus Jelatu
JOURNAL OF SONGKE MATH Vol. 3 No. 2 (2020): December Edition
Publisher : UNIKA SANTU PAULUS RUTENG

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The purpose of this study was to determine whether or not there is an effect of a scientific learning approach with local wisdom on students' mathematics learning achievement. The population were students of class II SMPN I Ruteng-Cancar for the 2018/2019 academic year. The sample was determined by random class. There were 64 students who were divided into two treatment groups. A total of 32 students in the experimental class and 32 students in the control class. The difference in effect between experimental action (scientific learning with local wisdom) and control action (conventional learning) is seen in the average difference test between these two groups. Data analysis used statistical t test, in which the sample groups are mutually independent. Obtained, tcount = 3,21 and ttable = 1,67. Because t_count > t_table then Ho: µ1 ≤ µ2 is rejected, otherwise H1: µ1 > µ2 is accepted. The conclusion is that learning with a scientific approach containing local wisdom has a positive and significant effect on student achievement.

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