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All Journal JURNAL EDUCATION AND DEVELOPMENT JURNAL MathEdu (Mathematic Education Journal) Jurnal ADAM : Jurnal Pengabdian Masyarakat
Roslian Lubis
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Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences

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EFEKTIVITAS MODEL PEMBELAJARAN KOOPERATIF TIPE COURSE REVIEW HORAY TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA DI SMP NEGERI 5 PADANGSIDIMPUAN Ernawati Mendrofa; Eva Yanti Siregar; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 2 (2020): Jurnal MatheEdu (Mathematic Education Journal) Vol. 3 No. 2 Juli 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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Abstract

The aim of this study was to know whether using course review learning model was effective on students’ mathematical problem solving ability on the topic of twovariables linear equation system at the eighth grade students of SMP Negeri 5 Padangsidimpuan. The research was conducted by applying experimental method (one group pretest post test design) with 28 students as the sample and they were taken by using cluster random sampling technique from 259 students. Observation and test were used in collecting the data. Based on descriptive analysis, it was found: (a) the average of using course review learning model was 3.8 (very good category) and (b) students’ mathematical problem solving ability on the topic twovariables linear equation system before using course review learning model was 55.64 (fair category) and after using course review learning model was 81.00 (very good category). Furthermore, based on inferential statistic by using pair sample ttest, (SPSS version 17),the result showed the significant value was less than 0.05 (0.049 < 0.05). It means,course review learning model was effective used on students’mathematical problem solving ability on the topic twovariables linear equation system at the eighth grade students of SMP Negeri 5 Padangsidimpuan.
PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA MELALUI PENGGUNAAN MODEL PROBLEM BASED INSTRUCTION KELAS VIII DI SMP SWASTA TAPIAN NAULI Inggridt IC Yulia Tantri Purba; Roslian Lubis; Agus Saleh
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 2 (2020): Jurnal MatheEdu (Mathematic Education Journal) Vol. 3 No. 2 Juli 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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This study aims to improve students’ mathematical problem solving ability through using instruction based problem model on the topic of the Pythagorean theorem at the eighth grade students of SMP swasta Tapian Nauli. The research was conducted by applying Class Action Research (CAR) with 25 students as the subject. Instrument of the research was test, questionnaire, and observation. The research consists of two cycles. The first cycle showed (a) the test showed the students’ achievement of the Pythagorean theorem was 75.9, (b) observation sheet showed the average of students’ activities was 58.13, and (c) the observation of class teacher showed the ability of researcher in using instruction based problem model was 100.Furthermore, the second cycle showed (a) the test showed the students’ achievement of the Pythagorean theorem was 84.60, (b) observation sheet showed the average of students’ activities was 80.27, and (c) the observation of class teacher showed the ability of researcher in using instruction based problem model was 100. It’s concluded that instruction based problem model was able to improve students’ mathematical problem solving ability through using instruction based problem model on the topic of the Pythagorean theorem at the eighth grade students of SMP swasta Tapian Nauli.
EFEKTIVITAS PENGGUNAAN MODEL PEMBELAJARAN VISUALIZATION AUDITORY KINESTIC (VAK) TERHADAP KEMAMPUAN PEMECAHAN MASALAH TEMATIS SISWA DI KELAS XI SMA NEGERI 1 SIBABANGUN Gurgur Rodop Mauli; Nunik Ardiana; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 3 (2020): JURNAL MathEdu (Mathematic Education Journal) Vol. 3 No. 3 November 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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The aim of this study was to know whether effective using VAK learning model on students’ mathematical problem solving ability on the topic of sequence and series at the eleventh grade students of SMA Negeri 1 Sibabangun. The research was conducted by applying experimental method (one group pretest post test design) with 34 students as the sample and they were taken by using cluster random sampling technique from 198 students. Observation and test were used in collecting the data. Based on descriptive analysis, it was found: (a) the average of using VAK learning model was 3.8 (very good category) and (b) the students’ mathematical problem solving ability on the topic of sequence and series before using VAK learning model was 52.5 (fair category) and after using VAK learning model was 84.11 (very good category). Furthermore, based on inferential statistic by using pair sample ttest, (SPSS version 22), the result showed the significant value was less than 0.05 (0.000<0.05) and by using N- gain formulation showed 0.67 (effective category). It means, using VAK learning model was effective used on students’ mathematical problem solving ability on the topic of sequence and series at the eleventh grade students of SMA Negeri 1 Sibabangun.
UPAYA PENINGKATAN KEMAMAPUAN PEMECAHAN MASALAH MATEMATIKA SISWA DI SEKOLAH MENENGAH PERTAMA MELALUI PENDEKATAN PEMBELAJARAN MATEMATIKA REALISTIK Sri Indah Lestary; Marzuki Ahmad; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 3 (2020): JURNAL MathEdu (Mathematic Education Journal) Vol. 3 No. 3 November 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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This study aims to improve students’ mathematical problem solving ability through realistic mathematic learning approach on the topic of the theorem of Phytagoras at the eighth grade students. The research was conducted by applying Class Action Research (CAR) with 25 students as the subject. Instrument of the research was test and observation. The research consists of two cycles. The first cycle showed (a) the test showed the students’ achievement of the theorem of Phytagoras was 47.02 (enough category) and (b) the questionnaire showed the average of students’ activities was 89.29 (high category). Furthermore, the second cycle showed (a) the test showed the students’ achievement of the theorem of Phytagoras 85.48 (very good category) and (b) the questionnaire showed the average of students’ activities was 96.42 (very high category). It’s concluded realistic mathematic learning approach was able to improve students’ mathematic mathematical problem solving ability through realistic mathematic learning approach on the topic of the theorem of Phytagoras at the eighth grade students.
EFEKTIVITAS PENGGUNAAN MODEL PEMBELAJARAN NUMBERED HEADS TOGETHER (NHT) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA DI KELAS VIII SMP NEGERI 9 PADANGSIDIMPUAN Eprianti Manalu; Rahmatika Elindra; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 2 (2020): Jurnal MatheEdu (Mathematic Education Journal) Vol. 3 No. 2 Juli 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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Tujuan dari penelitian ini adalah untuk mengetahui apakah menggunakan model pembelajaran NHT efektif pada kemampuan pemecahan masalah matematika siswa dengan topik sistem persamaan linear dua variabel pada siswa kelas delapan SMP Negeri 9 Padangsidimpuan. Penelitian ini dilakukan dengan menerapkan metode eksperimen (one group pretest post test design) dengan 25 siswa sebagai sampel dan mereka diambil dengan menggunakan teknik simple random sampling dari 169 siswa. Observasi dan tes digunakan dalam mengumpulkan data. Berdasarkan analisis deskriptif, ditemukan: (a) rata-rata menggunakan model pembelajaran NHT adalah 3,83 (kategori sangat baik) dan (b) kemampuan pemecahan masalah matematika siswa dengan topik sistim persamaan linear dua variabel sebelum menggunakan model pembelajaran NHT adalah 50,88 (kategori sedang) dan setelah menggunakan model pembelajaran NHT adalah 79,76 (kategori sangat baik). Selanjutnya, berdasarkan statistik inferensial dengan menggunakan pair sample ttest, (SPSS versi 17), hasilnya menunjukkan nilai signifikan kurang dari 0,05 (0,000 <0,05). Artinya, model pembelajaran NHT efektif digunakan pada kemampuan pemecahan masalah matematis siswa pada topik sistem persamaan linear dua variabel pada siswa kelas VIII SMP Negeri 9 Padangsidimpuan.
EFEKTIVITAS PENGGUNAAN PENDEKATAN OPEN-ENDED TERHADAP KEMAMPUAN KOMUNIKASI SISWA DI KELAS X SMA NEGERI 1 SIBABANGUN Andika Raja; Marzuki Ahmad; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 3 (2020): JURNAL MathEdu (Mathematic Education Journal) Vol. 3 No. 3 November 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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Tujuan dari penelitian ini adalah untuk menggambarkan efektivitas menggunakan pendekatan terbuka terhadap kemampuan komunikasi matematis siswa pada topik statistik pada siswa kelas sepuluh SMA Negeri 1 Sibabangun. Penelitian ini dilakukan dengan menerapkan metode eksperimen (one group pretest post test design) dengan sampel 34 siswa dan diambil dengan menggunakan teknik cluster random sampling dari 178 siswa. Observasi dan tes digunakan dalam mengumpulkan data. Berdasarkan analisis deskriptif, ditemukan: (a) rata-rata menggunakan pendekatan terbuka adalah 3,7 (kategori sangat baik) dan (b) rata-rata pencapaian statistik siswa sebelum menggunakan pendekatan terbuka adalah 56,98 (kategori adil) dan setelah menggunakan pendekatan terbuka adalah 80,33 (kategori sangat baik). Selanjutnya berdasarkan statistik inferensial dengan menggunakan pair sample ttes, (SPSS versi 22), hasilnya menunjukkan nilai signifikan kurang dari 0,05 (0,000 <0,05). Artinya, pendekatan terbuka efektif terhadap kemampuan komunikasi matematis siswa pada topik statistik pada siswa kelas sepuluh SMA Negeri 1 Sibabangun.
EFEKTIVITAS PENGGUNAAN MODEL PEMBELAJARAN CREATIVE PROBLEM SOLVING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA DI KELAS VIII SMP NEGERI 1 PADANG BOLAK JULU Efrida Rumondang Harahap; Roslian Lubis; Nenni Farida Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 3 No 3 (2020): JURNAL MathEdu (Mathematic Education Journal) Vol. 3 No. 3 November 2020
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

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Tujuan dari penelitian ini adalah untuk menggambarkan efektivitas penggunaan model pembelajaran creative problem solving terhadap kemampuan pemecahan masalah matematis siswa di kelas VIII SMP Negeri 1 Padang Bolak Julu. Penelitian ini dilakukan dengan menerapkan metode eksperimen (One Group Pretest Posttest Design) dengan 25 siswa sebagai sampel dan mereka diambil dengan menggunakan tehnik total sampling. Observasi dan tes digunakan dalam mengumpulkan data. Berdasarkan analisis deskriptif, ditemukan: (a) rata-rata penggunaan model pembelajaran creative problem solving adalah 3,83 (kategori sangat baik) dan (b) rata-rata kemampuan pemecahan masalah matematika siswa pada materi peluang sebelum menggunakan model pembelajaran creative problem solving adalah 53,28 (kategori kurang) dan setelah menggunakan model pembelajaran creative problem solving 75,68 (kategori baik). Selanjutnya, berdasarkan statistik inferensial dengan menggunakan pair sample ttest, (SPSS versi 22), hasilnya menunjukkan nilai signifikan kurang dari 0,05 (0,00 <0,05). Artinya, model pembelajaran creative problem solving efektif digunakan pada kemampuan pemecahan masalah matematika siswa pada materi peluang pada siswa kelas tujuh SMP Negeri 1 Padang Bolak Julu.
ANALISIS KETERAMPILAN METAKOGNISI SISWA DALAM MENYELESAIKAN SOAL MATEMATIKA DI KELAS XI SMK NEGERI 1 SOSORGADONG Darpin Sihotang; Tamin Ritonga; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 4 No 1 (2021): JURNAL MathEdu (Mathematic Education Journal) vol. 4 No. 1 Maret 2021
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v4i1.2198

Abstract

This study aims to describe students’ metacognition skill in completing mathematics’ questions at the eleventh grade students of SMK Negeri 1 Sosorgodang. This research conducted by applying quantitative descriptive method with 27 students as the sample and they were taken by using cluster random sampling technique from 95 students. Instrument of the research used test. The result of research shows 1) students who have high mathematic ability have very good metacognition, 2) students who have average mathematic ability have good metacognition, and 3) students who have low mathematic ability have less metacognition.
PEMIKIRAN GEORGE POLYA TENTANG PEMECAHAN MASALAH Dianti Purba; Zulfadli Nasution; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 4 No 1 (2021): JURNAL MathEdu (Mathematic Education Journal) vol. 4 No. 1 Maret 2021
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v4i1.2204

Abstract

The background of this research is Covid 19 pandemic that it made the learning online. This case is a problem because students are not able to master the topic that given by teachers especially in mathematics learning that need problem solving. George Polya had given a solution to overcome this problem in his book entitle “How to solve it”. The thinking will be described in this research by approach library research. The informants of the research are bapak Muhammad Syahril Harahap and ibu Rahmatika Elindra. They are the lectures of mathematics department of IPTS. The research result is 1) thinking of George Polya is an effort to look for an overcome from a difficulty to get a purpose that it is not able to achieved soon and 2) there are 4 steps of problem solving which included a) understand the problem, b) planning completion the problem, c) conducting completion the problem, and d) correction the result again . Based on the explanation above, it’s concluded thinking of George Polya can apply in learning mathematics in Covid 19 pandemic.
TEORI BELAJAR ROBERT MILLS GAGNE DAN PENERAPAN DALAM PEMBELAJARAN MATEMATIKA Destika Tarihoran; Mhd. Nau Ritonga; Roslian Lubis
JURNAL MathEdu (Mathematic Education Journal) Vol 4 No 3 (2021): JURNAL MathEdu (Mathematic Education Journal) vol. 4 No. 3 November 2021
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v4i3.2242

Abstract

ABSTRACT This study aims to describe of the learning theory of Robert Mills Gagne and the applying in learning mathematics on the students in Pananggahan Village. The research was conducted by applying descriptive qualitative. Instrument of the research included questionnaire (Guttman scale) and documentation. The respondents of the research consist of 30 students. The result of the research shows 1) the learning theory of Robert Mills Gagne is the process of changing one's behavior as a result of processing new information with previous experiences and 2) The applying the learning theory of Robert Mills Gagne in learning mathematics at the students of Pananggahan Village in Covid -19 pandemic haves troubles because students’ lack of concentration in doing the assignments given by the teacher, students feel bored with learning mathematics online, students do not understand the material presented by the teacher online, there are too many assignments given by the teacher, and many students do not have electronic facilities.
Co-Authors Agus Saleh Aiza Fatin Amril Isman Pasaribu Andika Raja Anisa Ahmad Astri Yovita Christin Elisabet Sihombing Darpin Sihotang Destika Tarihoran Devi Lestari Dianti Purba Donpipin Simatupang Efrida Rumondang Harahap Eprianti Manalu Ernawati Mendrofa Gomgom Refulton Gurgur Rodop Mauli Haidir Anwar Hasibuan Herlina Mutiara Harahap Holong Sumurung Siagian Inggridt IC Yulia Tantri Purba Irma Kholiza Sitorus Lismawati Sitorus Marzuki Ahmad Meri Santika Pinayungan Mhd Nau Ritonga Mhd. Nau Ritonga Muhammad Syahril Harahap Nenni Farida Lubis NUNIK ARDIANA Rahmadani Nasution Rahmatika Elindra Ria lestari Harahap Riko Saputra Tambunan Rosnida Siregar Sari Wahyuni Rozi Nasution Saripahtul Khairah Pohan Sinar Depi Harahap Siregar, Eva Yanti Siska Yanti Sri Indah Lestary Sri Puspa Siregar Syahtija Simanullang Tamin Ritonga Transusi Silaban Ummawiyah Hasibuan Unita Sukma Zuliani Nasution Uswatun Hasanah Hasibuan yulia pratiwi siregar Zulfadli Nasution