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All Journal Jurnal Edukasi Matematika dan Sains Edu Sains: Jurnal Pendidikan Sains dan Matematika Al Ishlah Jurnal Pendidikan Indiktika : Jurnal Inovasi Pendidikan Matematika JURNAL SILOGISME : Kajian Ilmu Matematika dan Pembelajarannya MAJAMATH: Jurnal Matematika dan Pendidikan Matematika Laplace : Jurnal Pendidikan Matematika MES: Journal of Mathematics Education and Science (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Jambura Journal of Mathematics Education Jambura Journal of Biomathematics (JJBM) Mosharafa: Jurnal Pendidikan Matematika Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Griya Journal of Mathematics Education and Application STRATEGY : Jurnal Inovasi Strategi dan Model Pembelajaran Indonesian Journal of Research and Educational Review (IJRER) Research in the Mathematical and Natural Sciences Research Review: Jurnal Ilmiah Multidisiplin Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) Innovative: Journal Of Social Science Research Lemma: Letters of Mathematics Education Damhil: Jurnal Pengabdian kepada Masyarakat
Perry Zakaria
Universitas Negeri Gorontalo
Religion Arts Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Improving students' problem-solving abilities by using geogebra learning media on three-dimensional material Ramadiana, Anastasya; Takaendengan, Bertu Rianto; Nurwan, Nurwan; Zakaria, Perry; Usman, Kartin; Yahya, Lailany
Edu Sains: Jurnal Pendidikan Sains & Matematika Vol 12 No 1 (2024): VOLUME 12 NOMOR 1 JUNI 2024
Publisher : IAIN Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23971/eds.v12i1.5802

Abstract

The COVID-19 pandemic has had an impact on the learning process in schools. For this reason, researchers observed learning at SMA Negeri 1 Gorontalo, it was found that students were still not optimal in solving mathematical problems, especially in formulating steps to solve problems. This research aims to improve students' problem-solving abilities by using GeoGebra on three-dimensional material. The research was carried out at SMA Negeri 1 Gorontalo in class XII IPA 5 from September to October of the 2022/2023 academic year with research subjects totaling 30 students. The research is Classroom Action Research (CAR) using the Kemmis and McTaggart model, which involves the stages of planning, action, observation, and reflection. Data was obtained from observation and written tests. Analysis of observation results was obtained by calculating scores for each aspect criterion observed both on the teacher observation sheet and the student observation sheet, while the written test was analyzed by referring to the minimum completeness criteria. The results of the research show that there is an increase in students' problem-solving abilities in three-dimensional material after taking action using the GeoGebra learning media.
Meningkatkan Hasil Belajar Siswa Menggunakan Model Pembelajaran Kooperatif Tipe STAD Berbantuan Media Pembelajaran CERDAS Pada Materi Bangun Ruang Sisi Datar Di Kelas VIII SMP Negeri Daerah Kotabunan Lasambu, Sri Rezeki; Zakaria, Perry; Oroh, Franky Alfrits
JEMS: Jurnal Edukasi Matematika dan Sains Vol. 12 No. 1 (2024)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jems.v12i1.17930

Abstract

Tujuan Penelitian ini untuk meningkatkan hasil belajar siswa pada materi Bangun Ruang Sisi Datar dengan menggunakan model pembelajaran kooperatif tipe Student Teams Achievement Divisions (STAD) berbantuan media pembelajaran Celemek Bangun Ruang Sisi Datar (CERDAS). Jenis penelitian ini yaitu penelitian tindakan kelas yang dilakukan di SMP Negeri Daerah Kotabunan pada tahun ajaran 2021-2022 semester genap. Penelitian dilaksanakan dengan melibatkan 21 siswa dan seorang guru sebagai subjek penelitian. Instrumen yang digunakan berupa lembar pengamatan guru, lembar pengamatan siswa dan tes hasil belajar. Penelitian ini berlangsung dengan 2 siklus. Hasil pengamatan kegiatan guru yang mencapai kategori baik dan sangat baik meningkat dari 71,43% menjadi 92,86%. Selanjutnya hasil pengamatan siswa yang mencapai kategori baik dan sangat baik juga maningkat dari 71,43% menjadi 92,86%. Untuk hasil belajar mengalami peningkatan yaitu 71,43% menjadi 85,71%. Semua aspek penilaian telah mencapai indikator keberhasilan belajar pada siklus II dengan penerapan model pembelajaran kooperatif tipe “STAD” berbantuan media pembelajaran “CERDAS”.
Meningkatkan Hasil Belajar Matematika Melalui Model Pembelajaran Open Ended di kelas VII-1 SMP Negeri 1 Batudaa Djikilo, Fadila A; Zakaria, Perry; Isa, Dewi Rahmawaty; Majid, Majid
JEMS: Jurnal Edukasi Matematika dan Sains Vol 11, No 2 (2023)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jems.v11i2.16401

Abstract

Penelitian ini bertujuan untuk meningkatkan hasil belajar matematik asiswa pada materi himpunan melalui model pembelajaran open ended. Penelitian ini adalah jenis penelitian tindakan kelas yang dilaksanakan di SMP Negeri 1 Batudaa pada tahun ajaran 2022-2023. Penelitian dilaksanakan dengan melibatkan 26 siswa sebagai subjek penelitian. Istrumen yang digunakan berupa lembar pengamatan kegiatan guru, lembar pengamatan kegiatan siswa, dan tes hasil belajar siswa. Hasil pengamatan kegiatan guru menunjukkan kategori minimal baik atau sangat baik dengan presentase 97,06% sedangkan hasil pengamatan kegiatan siswa menunjukkan kategori minimal baik atau sangat baik dengan presentase 90%.Adapun tes hasil belajar menunjukkan bahwa banyaknya siswa yang mencapai nilai Kriteria Ketuntasan Minimal adalah 23siswa (88,46%) dan tidak tuntas sebanyak 3 orang siswa (11,54%). Jadi, rata-rata hasil belajar matematika siswa pada materi himpunan telah memenuhi indicator keberhasilan belajar.
Pengembangan Usaha Petani Sayur untuk Meningkatkan Perekonomian Masyarakat Desa Bulotalangi Timur” Erni Mohamad; Perry Zakaria; Fauziah N Kasim; Widya A Habi; Rahmat S Napu; Lilis Anggraini; Priska Paramata
Damhil: Jurnal Pengabdian kepada Masyarakat Vol 1, No 2: December 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/damhil.v1i2.17435

Abstract

This service activity aims to provide education to farmers and housewives in an effort to develop vegetable farming businesses. So far, vegetables that have only been consumed or marketed to the general public can be converted into other ingredients. The people of this village do not yet understand that these vegetables, especially the produce of kale and spinach vegetable farmers, can be used as other ingredients in the form of snacks, namely as sticks and noodles. The processing process does not require a lot of money, but when it is marketed it will be able to increase the economic value of the community. The method used is direct training to groups of housewives and vegetable farmers with innovative technology. From the results of the implementation of this activity, the community was very enthusiastic about participating in the activity and was interested in making/producing kangkong chips and spinach noodles themselves. The community also suggested that they would make a business in the form of snacks as well, apart from those made from kale and spinach, according to their statements after participating in the training activities
Pemberdayaan Masyarakat Tentang Pembuatan Pupuk Organik Dari Kotoran Ternak Di Kelurahan Hutuo, Kecamatan Limboto, Gorontalo Erni Mohamad; Mangara Sihaloho; Perry Zakaria; Gevira Datungsolang; Neni Purnama Djaipano
Damhil: Jurnal Pengabdian kepada Masyarakat Vol 1, No 1: June 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/damhil.v1i1.15337

Abstract

This community service activity aims to reduce the community's dependence on chemical fertilizers which are increasingly expensive with the hope that this activity can improve the ability of people's knowledge in utilizing livestock manure which is not only left alone but must be processed so that it becomes useful as organic fertilizer for the purpose of increasing yields. harvest. The use of livestock manure which in this case is cow and goat manure as organic fertilizer is still very lacking among breeders. Almost 100% of farmers are not aware of the benefits of this animal manure as organic fertilizer because their focus is only on the livestock itself. Processing and utilizing livestock manure as organic fertilizer, so that people no longer depend on the use of chemical fertilizers. In this activity is to provide training to the community of livestock and farmer groups about making organic fertilizer from livestock manure (cows and goats). This activity is expected to train the community to be able to produce organic fertilizer that will be used by farmers, which has been a problem for farmers, namely crop failure caused by the community not being able to buy fertilizer due to the increasing price of chemical fertilizers. The method used is direct training to the group on the manufacture of organic fertilizer from animal waste using the fermentation method. The result of the implementation of the activity is that the community is very enthusiastic in participating in this activity. The community is interested in making/producing this fertilizer on their own, in addition to livestock manure, the community also intends to make this fertilizer themselves from waste or waste materials. Especially household waste based on the knowledge they have gained in this activity.  
Pelatihan Pembuatan pupuk Organik dari Limbah Cucian Beras (L-AIBER) dan Limbah Kulit Nenas pada masyarakat Desa Bulotalangi Timur Mohamad, Erni; Bialangi, Nurhayati; Sihaloho, Mangara; Tangio, Julhim S; Zakaria, Perry
Damhil: Jurnal Pengabdian kepada Masyarakat Vol 3, No 2: December 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/damhil.v3i2.29552

Abstract

Pengabdian kepada masyarakat ini bertujuan untuk memberikan pelatihan tentang pembuatan pupuk organik cair dari limbah cucian beras (L-AIBER) dan limbah kulit nanas kepada masyarakat Desa Bulotalangi Timur. Pelatihan ini diadakan sebagai upaya untuk meningkatkan kesadaran dan keterampilan masyarakat dalam memanfaatkan limbah rumah tangga menjadi produk yang bernilai guna tinggi serta ramah lingkungan.Metode yang digunakan dalam pelatihan ini meliputi penyampaian materi secara teoritis mengenai manfaat dan teknik pembuatan pupuk organik cair, diikuti dengan praktek langsung pembuatan pupuk oleh peserta. Hasil dari pelatihan menunjukkan bahwa peserta mampu memahami dan mempraktekkan teknik pembuatan pupuk organik cair dengan baik. Selain itu, pelatihan ini juga berhasil meningkatkan pengetahuan peserta mengenai pentingnya pengelolaan limbah rumah tangga dan manfaat pupuk organik bagi pertanian.Melalui program ini, diharapkan masyarakat Desa Bulotalangi Timur dapat secara mandiri memproduksi pupuk organik cair, mengurangi ketergantungan pada pupuk kimia, dan meningkatkan kualitas hasil pertanian. Program ini juga diharapkan dapat menjadi contoh bagi desa-desa lain dalam mengelola limbah rumah tangga secara produktif dan berkelanjutan.Kata Kunci: pelatihan, POC,  cucian beras,  kulit nanas
Influence of the Instagram-Assisted Flipped Classroom Learning Model on Students' Mathematical Communication at Middle School Saferlin, Dian; Badu, Syamsu Qamar; Zakaria, Perry; Kobandaha, Putri Ekawati
ETDC: Indonesian Journal of Research and Educational Review Vol. 4 No. 3 (2025): June
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/ijrer.v4i3.3167

Abstract

It is important for schools to improve students' mathematical communication. However, a preliminary study at Public Middle School 1 Bulango Selatan revealed that some students still struggle to solve problems given by the teacher, particularly those related to determining the length of a side of a flat shape, especially in the context of congruence and similarity. Therefore, the intent of this study was to determine the effect of the flipped classroom learning model assisted by Instagram on students' mathematical communication at Public Middle School 1 Bulango Selatan. The method used in this study was an experimental method consisting of an experimental class and a control class with a research design used, namely a post-test-only group design. We conducted a t-test data analysis on both the experimental and control classes. The findings of the study showed that the t-count was greater than the t-table value; specifically, the t-count was 2.083, which is greater than 2.042, leading to the rejection of H0. Thereby, it can be concluded that learning using the flipped classroom learning model on the material of congruence and similarity of flat shapes can affect students' mathematical communication skills.
Identifikasi Kesalahan Siswa MTs Dalam Menyelesaikan Soal Teorema Pythagoras Berdasarkan Tahapan Kastolan Gani, Moh. Rivaldi N.; Zakaria, Perry; Kobandaha, Putri Ekawaty
Jambura Journal of Mathematics Education Vol 6, No 1: Maret 2025
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jmathedu.v6i1.29565

Abstract

The number of students who make mistakes when answering questions related to the Pythagorean Theorem is the impetus for this study, with the aim of identifying errors made by students, as well as calculating the percentage of students who make mistakes related to the Pythagorean theorem based on the Kastolan stage, where students who are the subjects of this study are class VIII students of MTs. Nurul Bahri Kabila Bone. Using quantitative descriptive research methods, data derived from the answers of 17 students were collected and analyzed using descriptive statistical analysis. Six validated description questions were used as research instruments containing questions related to the Pythagorean theorem. The results obtained the percentage of students who made Kastolan stage errors, namely: (1) conceptual errors of 52.9%, with an average of 9 students making this type of error; (2) procedural errors of 82.4%, with an average of 14 students making this type of error; and (3) technical errors of 33.3% with an average of 6 students making this type of error. The errors that obtained the largest percentage of the findings were procedural errors, with the errors encountered including students' unwillingness to solve the problem completely, not recording the known and asked information, and not concluding the answer.
The Development of VBA Powerpoint-Assisted Learning Media to Improve Students’ Cognitive Ability Kasiaradja, Charisa S; Zakaria, Perry; Oroh, Franky Alfrits
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.29407

Abstract

The Education plays a crucial role in developing cognitive skills, including critical thinking and problem-solving, which are essential for student learning and future competitiveness. However, many students in Indonesia face difficulties in understanding mathematics, particularly on topics such as ratios, due to the limited use of interactive learning media. This study aims to develop an interactive learning media using Visual Basic Application (VBA) for PowerPoint and to evaluate its validity and practicality. The development followed the ADDIE model, which includes five stages: analysis, design, development, implementation, and evaluation. Validation was conducted to assess both media and content quality, while practicality was measured through responses from students and teachers. Data were collected using validation sheets, questionnaires, and scoring rubrics, and analyzed quantitatively to determine validity and practicality categories. The results showed that the learning media obtained an average score of 3.09 for media validity and 3.47 for content validity, both categorized as “very valid.” Student responses reached a score of 740 out of 800, while teacher responses achieved a perfect score of 40 out of 40, indicating that the media is highly practical. Based on these findings, it can be concluded that VBA-based PowerPoint learning media is valid, practical, and effective in enhancing cognitive engagement and supporting mathematics learning, particularly on the topic of ratios.
Analysis of Students’ Mathematical Problem-Solving Ability Based on Self-Confidence Salsabila, Nahdah; Zakaria, Perry; Kobandaha, Putri Ekawaty
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 3 (2025): VOLUME 8 NUMBER 3, SEPTEMBER 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i3.29438

Abstract

Education plays an important role in developing students’ potential, especially critical and creative thinking. Mathematics, as a core subject, supports students’ problem-solving ability, which involves understanding, procedure selection, and application in new contexts. One factor that may influence this ability is self-confidence, as confident students are more persistent and independent in solving problems. This study aimed to examine the effect of self-confidence on students’ mathematical problem-solving ability. The research employed a quantitative correlational design with a purposive sample of 60 seventh-grade students at SMP Negeri 8 Kota Gorontalo. Instruments consisted of a mathematical problem-solving test and a self-confidence questionnaire. Data were collected through tests and questionnaires, then analyzed using simple linear regression and correlation coefficient tests. The findings revealed that self-confidence significantly affects students’ mathematical problem-solving ability. Students with higher self-confidence tended to achieve better outcomes. The correlation coefficient was 0.6923 (strong positive), with a coefficient of determination (R²) of 47.22%, indicating that self-confidence contributed nearly half of the variation in problem-solving ability. The remaining 52.78% was influenced by other factors not examined in this study, such as math anxiety, learning habits, and environmental support. In conclusion, self-confidence has a positive and significant effect on mathematical problem-solving ability, suggesting the importance of fostering students’ confidence alongside academic skills.
Co-Authors Abas Kaluku Abdul Wahab Abdullah Adriyanto Moha Agustian Usman Agusyarif Rezka Nuha Ahmad Kadir Kilo Arham Arham, Arham Arpina Sauwera Arya Aurellio Yusuf Auli Irfah Bertu Rianto Takaendengan Dewi Rahmawati Isa Dewi Rahmawaty Isa Djikilo, Fadila A Erni Mohamad Fahira Muzdhalifah Lukum Fauziah N Kasim Ferdy Rontos Franky Alfrits Oroh Frendy Dermawan Silalahi Gani, Moh. Rivaldi N. Gevira Datungsolang Gusasi, Dewita Gusasi, Magvira Hafidzah Nurul Millah Hasan S. Panigoro Ismail Djakaria Julhim S Tangio Jusuf, Nurul Fatwa Anbiya Kartin Usman Kasiaradja, Charisa S Khardiyawan A.Y Pauweni Kobandaha, Putri Ekawaty Lahay, Anatasya Lailany Yahya Lamaka, Rizky Amalia Y Lasambu, Sri Rezeki Lilis Anggraini Lukman A. R. Laliyo Mahmud, Sri Lestari Majid Majid Majid, Majid Mangara Sihaloho Moh Akbar Gusasi Monalisa Noe Mongilong, Silfana Mootalu, Nurnaningsi Mutmaina D. Maku Nadila Nurfariza Tahir Nancy Katili Neni Purnama Djaipano Netty Ischak Ningsi J. Lihawa Nurhayati Abbas Nurhayati Bialangi Nurlela A. Ts. Nggoli Nurmala Niode Nursiya Bito Nurul Pakaya Nurwan Nurwan Nurwan, Nurwan Pauweni, Khardiyawan A.Y. Priska Paramata Putri Ekawati Kobandaha Putri Istiqomah Sulistiyono Rahmat S Napu Rahmi Moh. Amin Ramadiana, Anastasya Resmawan Resmawan Rif’at, Nazmi Rizky Amalia Y Lamaka Rosiana Jupri Rustam I. Husain Saferlin, Dian Salsabila, Nahdah Sumarno Ismail Suparman M Ismail Swasti Maharani Syafrudin Katili Syamsu Qomar Badu Taulia Damayanti Tedy Machmud Tiara Trivonia Djikilo Virawati Puana Widya A Habi Yamin Ismail