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Sumardi, Hari

Pendidikan Matematika, Universitas Bengkulu

Author-ID : 3040300

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Mathematics Physics Public Health Social Sciences Other

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Effort to improve student learning results in sequences and series materials through the application of SQ4R learning model in class X SMAN 11 Bengkulu Annisa Al Karimah; Hari Sumardi; Saleh Haji; Hardini Agustika
Math Didactic: Jurnal Pendidikan Matematika Vol 9 No 1 (2023): Januari - April 2023
Publisher : STKIP PGRI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v9i1.2083

Tujuan dari penelitian ini adalah untuk mengetahui peningkatan hasil belajar siswa pada materi barisan dan deret menggunakan model pembelajaran SQ4R (Survey Question Read Recite Review Reflect) pada siswa kelas X SMAN 11 Kota Bengkulu. Jenis penelitian ini adalah Penelitian Tindakan Kelas yang dilakukan dalam dua siklus. Instrumen yang digunakan adalah tes dan lembar observasi. Subjek penelitian adalah siswa kelas X SMAN 11 Kota Bengkulu tahun pelajaran 2022/2023 yang berjumlah 29 orang siswa. Analisis data hasil tes dan observasi pada penelitian tindakan kelas ini menggunakan persentase dari nilai hasil tes dan observasi yang telah di tentukan. Hasil tes belajar siswa menggunakan persentase berdasarkan jumlah siswa yang tuntas yakni, Siklus I yaitu 41% menjadi 93% pada Siklus II. Aktivitas siswa dengan persentase Siklus I 90% dan 95% pada Siklus II. Berdasarkan hasil penelitian, maka model pembelajaran SQ4R dapat meningkatkan hasil belajar matematika dan aktivitas siswa di kelas X SMAN 11 Kota Bengkulu.

IMPROVE STUDENT LEARNING OUTCOMES USING STUDENT WORKSHEETS BASED ON THE APOS MODEL ASSISTED BY GEOGEBRA Lilia Gina Febrila; Hanifah Hanifah; Hari Sumardi; Tria Utari
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 1 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

The observation results showed that practicum activities and student learning outcomes in algebra courses were not optimal. Therefore, a learning model is needed that can make students carry out practical activities directly in class and can improve student learning outcomes This study aimed to determine the increase in student learning outcomes through the use of Rational Function Student Worksheets based on the GeoGebra-assisted APOS model. The type of research carried out is Classroom Action Research (CAR). The research instrument was in the form of a learning achievement test sheet. The subjects of this study were first semester students of the Mathematics Education Study Program at Bengkulu University in 2022. The results showed that the average learning outcomes were 71.26 in cycle I and 82.05 in cycle II with a percentage of completeness in student learning outcomes of 82.05%. in cycle II. So it can be concluded that learning using rational function student worksheets based on the APOS model assisted by GeoGebra can improve student learning outcomes.Hasil observasi menunjukkan bahwa kegiatan praktikum dan hasil belajar mahasiswa pada mata kuliah aljabar belum optimal. Oleh karena itu, diperlukan model pembelajaran yang dapat membuat mahasiswa melakukan kegiatan praktikum secara langsung dikelas dan dapat meningkatkan hasil belajar mahasiswa. Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar mahasiswa melalui penggunaan Lembar Kerja Mahasiswa fungsi rasional berbasis model APOS berbantuan GeoGebra. Jenis penelitian yang dilaksanakan adalah Penelitian Tindakan Kelas (PTK). Instrumen penelitian berupa lembar tes hasil belajar. Subjek penelitian ini yaitu mahasiswa semester I Program Studi Pendidikan Matematika Universitas Bengkulu Tahun 2022. Hasil penelitian menunjukan bahwa rata-rata hasil belajar yaitu 71,26 pada siklus I dan 82,05 pada siklus II dengan persentase ketuntasan hasil belajar mahasiswa sebesar 82,05% pada siklus II. Sehingga dapat disimpulkan bahwa pembelajaran menggunakan lembar aktivitas mahasiswa fungsi rasional berbasis model APOS berbantuan GeoGebra dapat meningkatkan hasil belajar mahasiswa.

MENINGKATKAN KEMAMPUAN BERPIKIR TINGKAT TINGGI DAN HASIL BELAJAR SISWA MELALUI MODEL PROJECT BASED LEARNING DI KELAS VIII MTS BAITUL MAKMUR, KOTA BENGKULU Gyzka Veliesa; Saleh Haji; Hari Sumardi; Agung Setia Budi
MES: Journal of Mathematics Education and Science Vol 8, No 2 (2023): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v8i2.6945

This study aims to improve students' high-order thinking skills through Project Based Learning in Class VIII at Mts Baitul Makmur, Rejang Lebong, Bengkulu. There were two cycles in this research. Each cycle applies a project-based learning model and consists of four stages, namely planning, implementing, observing, and reflecting. The research subjects were 26 students of class VIII B at MTs Baitul Makmur Rejang Lebong. Data were collected through observation, field notes, documentation, and tests. The results showed that the implementation of project-based learning could improve students' high-level thinking skills. This is indicated by an increase in the percentage of higher-order thinking skills from pre-cycle (cycle 1 pre-test) of 48% (poor) to 73% (enough) in cycle 1. Then in cycle 2, it increased to 82% (good). Furthermore, there was an increase in student learning outcomes through the Project Based Learning model in Class VIII, Mts Baitul Makmur Rejang Lebong. In the pre-cycle, the average score of students' mathematics tests was 53.54, with classical completeness of 4%. In cycle 1, the average score increased to 76.62, with a classical pass of 73.08%. It increased in cycle 2, the average score being 80.12 with a classical pass of 85%.

Improving students' creative thinking ability through problem-based learning in class VII SMP Negeri 24, Bengkulu City Ririn Astria; Saleh Haji; Hari Sumardi; Robiatul Audaya
Math Didactic: Jurnal Pendidikan Matematika Vol 9 No 2 (2023): Mei - Agustus 2023
Publisher : STKIP PGRI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v9i2.2034

Penelitian ini bertujuan untuk mendeskripsikan bagaimana penerapan model pembelajaran problem-based learning dapat meningkatkan kemampuan berpikir kreatif peserta didik kelas VII B di SMP Negeri 24 Kota Bengkulu. Jenis penelitian dalam penelitian ini adalah Penelitian Tindakan Kelas atau biasa disebut PTK. Dengan teknik pengumpulan data menggunakan tes kemampuan berpikir kreatif matematis. Subjek dalam penelitian ini adalah peserta didik kelas VII B di SMP Negeri 24 Kota Bengkulu. Teknik analisis data dalam penelitian ini adalah dengan menghitung hasil belajar siswa di setiap akhir siklus. Hasil penelitian ini menunjukkan bahwa adanya peningkatan tes evaluasi di setiap siklusnya. Pada Siklus I, nilai rata-rata tes Peserta didik adalah 67 dengan kelulusan klasikal sebesar 50%. Pada Siklus II mengalami peningkatan nilai rata-rata menjadi 82,9 dengan kelulusan klasikal sebesar 100% dan meningkatnya persentase berpikir kreatif matematis yaitu 52,66% (cukup kreatif) pada Siklus I kemudian pada Siklus II meningkat menjadi 86,77% (kreatif).

Structural equation fit test of mathematical connection ability, mathematical reasoning, and mathematics problem-solving ability of junior high school students Abdurrobbil Falaq Dwi Anggoro; Saleh Haji; Hari Sumardi
International Journal of Trends in Mathematics Education Research Vol 5, No 1 (2022)
Publisher : SAINTIS Publishing

The purpose of this study was to test the compatibility of theoretical and empirical structural equations on the relationship between mathematical connection skills, mathematical reasoning, and mathematical problem-solving abilities of junior high school students. This is an ex-post facto research at SMP N 1 Bengkulu City. The population of this study was 296 people, and the sample was selected through a simple random technique of 100 people. Data collection techniques through tests with three research instruments. The three instruments are a mathematical problem-solving ability test, a mathematical reasoning ability test, and a mathematical connection ability test that have been valid and reliable based on expert tests and field tests. The data was tested using the Lisrel 8.8 application program. The results of the study are the P-valued of 0.05, RMSEA ≤ 0.08; NFI ≥ 0.90, NNFI ≥ 0.90; CFI ≥ 0.90; IFI ≥ 0.90; RFI ≥ 0.90; RMR ≤ 0.05; SRMR ≤ 0.05; GFI ≥ 0.90; and 0.8≤AGFI≤0.9; then the fit test for the complete structural equation model is good fit. It means that the theoretical structural equation model is compatible with the empirical structural equation model. Thus, the overall fit test of the model shows a fit model, and it can be concluded that the empirical structural equation model is compatible with the theoretical model.

PELATIHAN BEBRAS CHALLENGE UNTUK MENINGKATKAN KEMAMPUAN COMPUTATIONAL THINKING GURU DI KABUPATEN SELUMA Teddy Alfra Siagian; Hari Sumardi; Hanifah Hanifah; Agus Susanta
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2023): Volume 4 Nomor 2 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i2.16143

Computational thinking merupakan cara berpikir dalam menyelesaikan suatu persoalan secara komputasi. Salah satu kompetisi yang melibatkan kemampuan computational thinking di dalamnya adalah bebras challenge. Namun sosialisasi tentang computational thinking dan bebras challenge masih terbatas sehingga belum sampai ke guru-guru di kabupaten Seluma provinsi Bengkulu. Tujuan dari kegiatan pengabdian ini adalah untuk memberikan pengetahuan dan penguatan kepada guru-guru di Kabupaten Seluma tentang bebras challenge sehingga dapat meningkatkan computational thinking yang dimilikinya. Metode pelaksanaan kegiatan berupa: (1) pemberian pretest; (2) penyampaian materi bebras challenge dan computational thinking; (3) kegiatan diskusi dan tanya jawab; (4) pemberian postest. Dari pelaksanaan kegiatan diperoleh bahwa peserta serius dan antusias mengikuti seluruh rangkaian kegiatan. Dari hasil pretest dan posttest memiliki peningkatan sebesar 23%.

Students' Mathematical Literacy Ability in Solving Problems on Pattern Material Using the Bengkulu Local Contexts Agus Susanta; Hari Sumardi; Edi Susanto
Didaktik Matematika Vol 9, No 2 (2022): OCTOBER 2022
Publisher : Universitas Syiah Kuala

Mathematical literacy is an important ability for students in Indonesia to face the implementation of minimum competency assessment and learning in the 21st century. This study aims to describe students' mathematical literacy skills in solving problems on pattern material in the Bengkulu local context. This study used a descriptive qualitative design. The research subjects were 30 students grade VIII from five schools in Bengkulu City. Subject selection through purposive sampling technique based on the level of intelligence with the number of each school is six students. Data were collected through interviews and mathematical literacy test using description questions that have been validated and tested. The data analysis consists of data reduction, data presentation, and concluding. The findings of this study are that students with low to moderate knowledge tend to have literacy skills at level 2. In contrast, students in the high knowledge group have literacy skills at level 3. Many students have used mathematical arguments to solve literacy problems but did not use concepts correctly. Students have not used the model structurally at the modeling stage, which resulted in errors in problem-solving and representation. Based on this, teachers need to emphasize the concept of material and mathematical modeling in learning.

PENGARUH MODEL PEMBELAJARAN CONCEPT ATTAINMENT TERHADAP KEMAMPUAN GENERALISASI MATEMATIS DAN KEMAMPUAN BERPIKIR GEOMETRI VAN HIELE Desfa Lusiana; Zamzaili Zamzaili; Hari Sumardi
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.272

This study intended to know the effect of the Concept Attainment Model on the students in the mathematical generalization ability and Van Hiele's geometry thinking ability. This study used a quasi-experimental method. The population included all students of SMPN 16, Bengkulu, in the academic year 2020/2021. The sample consisted of two classes selected using purposive sampling techniques. Mathematical generalization ability and Van Hiele's geometry thinking ability were measured by a test that has been valid and reliable. Furthermore, the data obtained were analyzed using the test MANCOVA with a 5% significant level (α = 0.05). The result of the hypothesis test indicated that there was a positive effect of the Concept Attainment Model on mathematical generalization ability and Van Hiele's geometry thinking ability

PENGARUH MATHEMATICS PHOBIA, ADVERSITY QUOTIENT, LOCUS OF CONTROL TERHADAP LITERASI MATEMATIKA PADA SISWA SEKOLAH MENENGAH Muhammad Yogi Ramadhan; Saleh Haji; Hari Sumardi
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.309

This study aims to analyze the effect of math phobia, locus of control, and adversity quotient on the mathematical literacy skills of junior high school students. This type of research is ex post facto research in the form of correlation. The population in this study were all class VII students of SMPQ Darul Maarif and SMP IT Hidayatul Falah Rejang Lebong. The sampling technique used random simple sampling in which 47 students were selected at SMPQ Darul Maarif and 50 students at SMP IT Hidayatul Falah Rejang Lebong. The collection was carried out using a mathematics phobia, locus of control, and adversity quotient questionnaire and test sheets for students' mathematical literacy abilities. Research data were analyzed using path analysis techniques (path analysis). Research shows that there is a significant positive effect both simultaneously and partially between math phobia, locus of control, and adversity quotient on mathematical literacy skills

PENGARUH MODEL PEMBELAJARAN EVERYDAY MATHEMATICS (EM) TERHADAP KEMAMPUAN BERFIKIR KRITIS DAN KREATIF SISWA SMP NEGERI 01 LEBONG Dona Eka Safitriyanti; Hari Sumardi; Saleh Haji
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 2 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i2.339

This study aims to determine the effect of the Everyday Mathematics (EM) Learning Model on Students' Critical and Creative Thinking Ability. This type of research uses the Quasi Experiment method. Data collection is done through tests. Data analysis used the Ancova test. The sample of this research is students of SMPN 01 Lebong class VII.4 and VII.6. The results showed that: There is a linear influence of initial ability covariates on students' critical thinking skills with an effect of 62.6%. There is a linear influence of initial ability covariates on students' creative thinking abilities with an effect of 22.7%. There is an effect of applying the Everyday Mathematics learning model to students' critical thinking skills with an effect of 82.9%. There is an effect of applying the Everyday Mathematics learning model to students' creative thinking abilities with an effect of 6.5%. the achievement of critical thinking skills taught through learning using the Everyday Mathematics learning model is better than that taught through conventional learning. the achievement of creative thinking skills taught through learning using the Everyday Mathematics learning model is better than that taught through conventional learning

Co-Authors Abdul Rahman Singkam Abdurrobbil Falaq Dwi Anggoro Afnaria, Afnaria Agung Setia Budi Agus Susanta Agus Susanta AGUSTIN, ELUL DIAN Aliya Monika Br Ginting Andriany Ussandi Anggraini, Dewita Annisa Al Karimah Apriyanti, Peni Astria, Ririn Athiyyah Nur Herlita Audaya, Robiatul Bellatama, Lisa Gustiana Br Ginting, Aliya Monika Desfa Lusiana Dodi Isran Dona Eka Safitriyanti Dwi Agusantia Dwi Putri, Geza Edi Susanto Fatrima Santri Syafri, Fatrima Santri Fauzi, Fentiriani Febrila, Lilia Gina Fentiriani Fauzi Gyzka Veliesa Haji, H Saleh Hanifah Hanifah Hanifah Hanifah Hanifah Hanifah Hanifah Hanifah Hanifah hanifah hanifah Hanifah Hanifah Hanny Nurhikma Prapti Hardini Agustika Herawati, Anisa Heri Retnawati Irsal, Nur Aliyyah Istikomar Istikomar Jesica Angela Fitri Khairani, Melvi Khairul Saleh Khalifah, Shela Mardha Kintan Ayu Septiany Kusuma, Helti Puji Lilia Gina Febrila Lilia Gina Febrila Luluk Lutfiya Miftakhul Janah Khoiriyah Muchlis, Effie Efrida Muchlis, Effie Muchlis Muhammad Fathoni Muhammad Yogi Ramadhan Nida Azizah Nur Aliyyah Irsal Nurliyan Hidayati, Latifa Nurul Astuty Yensi B Rahadi Bimansah Rahma Nia Juita Ridho Agio Nesta Ridwanul Fata Ridwanul Fata Ririn Astria Robiatul Audaya Rusdi Rusdi Sakti, Intan Tiara Siagian, Teddy Alfra Sri Rahmayanti Susanta, Agus Suvriadi Panggabean Teddy A Siagian Teddy Alfra Siagian Teddy Alfra Siagian Tria Utari Triyanti, Yeni Utari, Tria Youla Siscasari R Yuni Pusvita Zainal Azis Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili Zamzaili, Zamzaili Zulkardi Zulkardi Zulkardi

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