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Rachmat Sahputra
Program Studi Pendidikan Kimia Jurusan Pendidikan MIPA FKIP Universitas Tanjungpura
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Pelatihan Pembuatan Media Pembelajaran Bagi Guru Kimia di Kabupaten Melawi Kalimantan Barat Erlina, Erlina; Hairida, Hairida; Enawaty, Eny; Sahputra, Rachmat; Masriani, Masriani; Muharini, Rini; Junanto, Tulus; Ulfah, Maria; Ifriani, Andi; Rasmawan, Rahmat; Lestari, Ira; Sasri, Risya
Jurnal Pengabdian Pada Masyarakat Vol 10 No 1 (2025): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/jppm.v10i1.998

Abstract

Kegiatan pelatihan ini bertujuan untuk meningkatkan kemampuan para guru kimia di kabupaten Melawi dalam merancang, memilih, dan menggunakan media pembelajaran yang tepat dalam pembelajaran di kelas. Selain itu, pelatihan ini juga diharapkan dapat membekali guru untuk menciptakan lingkungan belajar yang lebih interaktif, menarik dan efektif bagi peserta didik. Kegiatan ini dilaksanakan di SMA Muhammadiyah kabupaten Melawi pada tanggal 26 Juli 2023 melalui workshop dan pendampingan. Ke giatan ini diikuti oleh 13 orang guru Kimia dari SMA/SMK yang ada di Nanga Pinoh, kabupaten Melawi. Kegiatan pelatihan dibagi menjadi dua bagian, bagian pertama fokus pada pembuatan modul berbasis Problem Based Learning (PBL), sedangkan bagian kedua fokus pada penggunaan/pemanfaatan media atau aplikasi online. Berdasarkan hasil evaluasi, dapat disimpulkan bahwa peserta antusias dalam mengikuti kegiatan pelatihan dan memberikan respon positif terhadap kegiatan pelatihan. Semua peserta menyatakan bahwa kegiatan pelatihan sangat berg una dan mudah diaplikasikan sehingga dapat membantu guru dalam merancang dan menyiapkan kegiatan belajar mengajar. This training activity aims to enhance the skills of chemistry teachers in Melawi Regency in designing, selecting, and utilizing appropriate teaching media for classroom instruction. Additionally, this training is also expected to equip teachers to create a more interactive, engaging, and effective learning environment for students. The activity took place at SMA Muhammadiyah in Melawi Regency on July 26, 2023, through workshops and mentoring. Thirteen chemistry teachers from various high schools and vocational schools in Nanga Pinoh, Melawi Regency, participated in this training. The training was divided into two parts, with the first part focusing on the development of Problem-Based Learning (PBL)-based modules, while the second part emphasized the use of online media or applications. Based on the evaluation results, it can be concluded that participants were enthusiastic about the training and provided positive feedback. All participants stated that the training was highly beneficial and easily applicable, helping teachers in designing and preparing effective teaching and learning activities.
ANALISIS KANDUNGAN KALSIUM (Ca) PADA TANAMAN PORANG (Amorphophallus Oncophyllus) Sahputra, Rachmat
QUANTUM: Jurnal Pembelajaran IPA dan Aplikasinya Vol 5, No 1 (2025)
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Melawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46368/qjpia.v5i1.3994

Abstract

The nutritional content in porang plants, as with other plants, also contains carbohydrates, fats, proteins, minerals, vitamins and fiber. This study aims to obtain data on the average Calcium mineral content in Porang Plants. The analysis method uses an atomic absorption spectrometer (AAS) in flame emission mode. The sample solution containing Calcium is stored in a polyethylene bottle. Calcium has a maximum emission light at a wavelength of 422.7 nm, where the working procedure is that the sample is nebulized into a gas flame so that controlled excitation occurs with the Calcium resonance spectrum line at 422.7 nm isolated with an interference filter or with a light dispersing device with a prism or grating. The intensity of the emission light is measured with a photomultiplier, or photodiode. The light intensity at 422.7 nm will be approximately proportional to the Calcium concentration. The results of the analysis were obtained on 5 kg of wet porang plants, equivalent to 1 kg of dry porang tubers, which contained 112.3 g of calcium from dry flour, equivalent to 16.85 g of calcium from dry tubers, equivalent to 3.37 g of wet tubers.
Analisis Kandungan Natrium (Na) pada Tanaman Porang (Amorphophallus Oncophyllus) Sahputra, Rachmat
QUANTUM: Jurnal Pembelajaran IPA dan Aplikasinya Vol. 3 No. 1 (2023)
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Melawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46368/qjpia.v3i1.1045

Abstract

Abstract: The nutritional content contained in the porang plant, as is the case with other root crops, also contains carbohydrates, contains fat, protein, minerals, vitamins and fiber. This study aims to obtain data on the average sodium mineral content in Porang plants. The analytical method uses an atomic absorption spectrometer (AAS) in flame emission mode. Sample solutions containing sodium were stored in polyethylene bottles. Sodium has a maximum light emission at a wavelength of 589 nm, where the working procedure is that the sample is nebulized into a gas flame to allow controlled excitation to occur. The sodium resonance spectral line at 589 nm is isolated with an interference filter or with a light dispersing device such as a prism or grating. The intensity of the emitted light is measured with a photomultiplier, or photodiode. The intensity of light at 589 nm will be roughly proportional to the concentration of sodium. From the results of the analysis using the AAS method, it was found that the sodium content in the porang tuber sample was obtained from Nganjuk district, East Java, with a sodium content of 51.25 mg per 1 kg of porang tuber flour or 5.125 mg sodium per 100 g of porang tuber. This content is lower than the sodium content in corn, but higher than the sodium content in rice.Keywords: Analysis of sodium content, porang plantsAbstrak: Kandungan nutrisi yang terdapat di dalam tanaman porang, seperti halnya dengan tanaman umbi-umbian lain juga mengandung karbohidrat, lemak, protein, mineral, vitamin dan serat. Penelitian ini bertujuan untuk  mendapatkan data kandungan mineral natrium rata-rata pada tanaman porang. Metoda analisa menggunakan spektrometer serapan atom (AAS) dalam mode emisi nyala. Larutan sampel yang mengandung natrium disimpan dalam botol polietilen. Natrium memiliki cahaya emisi maksimum pada panjang gelombang 589 nm di mana prosedur kerjanya sampel dinebulisasi menjadi nyala gas agar terjadi eksitasi yang dikontrol dengan garis spektrum resonansi natrium pada 589 nm diisolasi dengan filter interferensi atau dengan perangkat pendispersi cahaya seperti prisma atau kisi-kisi. Intensitas cahaya emisi diukur dengan photomultiplier, atau photodiode. Intensitas cahaya pada 589 nm kira-kira  akan sebanding dengan konsentrasi Natrium. Dari hasil analisis melalui metoda AAS diperoleh kandungan Natrium dalam sampel umbi porang yang diperoleh dari kabupaten Nganjuk Jawa timur dengan  kandungan natrium sebesar 51,25 mg per 1 kg tepung umbi porang atau 5,125 mg natrium per 100g umbi porang. Kandungan ini lebih rendah dibanding kadar Natrium di dalam jagung, tetapi lebih tinggi dari pada kandungan natrium dalam beras.Kata-kata kunci: Analisis kandungan natrium, tanaman porang
ANALISIS KANDUNGAN KALSIUM (Ca) PADA TANAMAN PORANG (Amorphophallus Oncophyllus) Sahputra, Rachmat
QUANTUM: Jurnal Pembelajaran IPA dan Aplikasinya Vol. 5 No. 1 (2025)
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Melawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46368/qjpia.v5i1.3994

Abstract

The nutritional content in porang plants, as with other plants, also contains carbohydrates, fats, proteins, minerals, vitamins and fiber. This study aims to obtain data on the average Calcium mineral content in Porang Plants. The analysis method uses an atomic absorption spectrometer (AAS) in flame emission mode. The sample solution containing Calcium is stored in a polyethylene bottle. Calcium has a maximum emission light at a wavelength of 422.7 nm, where the working procedure is that the sample is nebulized into a gas flame so that controlled excitation occurs with the Calcium resonance spectrum line at 422.7 nm isolated with an interference filter or with a light dispersing device with a prism or grating. The intensity of the emission light is measured with a photomultiplier, or photodiode. The light intensity at 422.7 nm will be approximately proportional to the Calcium concentration. The results of the analysis were obtained on 5 kg of wet porang plants, equivalent to 1 kg of dry porang tubers, which contained 112.3 g of calcium from dry flour, equivalent to 16.85 g of calcium from dry tubers, equivalent to 3.37 g of wet tubers.
Development of Formative Assessment Based on Wordwall Games on the Material of Atomic Theory Sari, Jossy Marinda; Hairida*, Hairida; Enawaty, Eny; Erlina, Erlina; Sahputra, Rachmat; Afriyanti, Fitria
Jurnal Pendidikan Sains Indonesia Vol 13, No 3 (2025): JULY 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v13i3.45213

Abstract

The implementation of formative assessment in chemistry learning remains suboptimal, as many teachers still rely on conventional methods and rarely utilize innovative digital media such as educational games. This study aims to determine the level of validity and response from chemistry teachers and students to formative assessment media based on wordwall games on the material of the development of atomic theory. The research method used is research and development with the ADDIE model which consists of analysis, design, development, implementation and evaluation stages but this research only reaches the development stage. The data collection techniques used are direct communication techniques with interviews and indirect communication by providing media validation sheets and questions and response questionnaires for chemistry teachers and students. The results of validation by experts on the question aspect obtained a percentage of 91.67% and on the media aspect of 95%, both of these aspects fall into the category of very feasible. The average percentage of chemistry teachers' response to formative assessment media based on wordwall games on the material of the development of atomic theory is 88.3%. While the average response of students to the product obtained a percentage of 82.67% with a very attractive category. Based on the results of validation and response tests, it can be concluded that the wordwall games-based formative assessment product on the material of the development of atomic theory is feasible to use in supporting the implementation of formative assessmentsinlearning
Development of E-module Based on Guided Inquiry in Chemical Bonding Topic for Class X Student Learning Materials Pawestri, Nur Arneta; Erlina*, Erlina; Harun, Andi Ifriany; Sahputra, Rachmat; Lestari, Ira
Jurnal Pendidikan Sains Indonesia Vol 11, No 4 (2023): OCTOBER 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v11i4.30677

Abstract

The lack of teaching materials that are able to explain the formation of chemical bonds causes students difficulties in learning. Therefore, this study focused on developing guided inquiry-based e-module of chemical bonding. This study aims to determine the feasibility and students response to guided inquiry-based e-module of chemical bonding. This study employs research and development (RD) using ADDIE model which is limited to development stage. The due diligence was carried out by material, media and language experts. The respondents involved were 31 students of class XI MAN 2 Pontianak. The research instruments were the feasibility sheets, media, language, and response questionnaires. The results of the feasibility of e-module test is k=1 (very high validity) and student response tests k=0.85 (very interesting). Those findings indicate that the E-module is very feasible to use
A Description of Formal Reasoning Ability and Its Relationship with Chemistry Learning Outcomes of Grade XI Senior High School Students Santi, Lusia; Erlina; Sahputra, Rachmat
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 4 (2025): August 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i4.17118

Abstract

This study aims to describe students’ formal reasoning ability and its relationship with chemistry learning outcomes among Grade XI students in the Chemistry 1 and Chemistry 3 specialization classes at a public senior high school in Pontianak City during the first semester of the 2024/2025 academic year. The data collection instrument employed was a formal reasoning ability test developed by Burney. The findings revealed that the majority of students’ formal reasoning abilities were categorized as low, with most students still at the concrete and transitional stages. Among the five aspects of formal reasoning, the probabilistic aspect was the most mastered (71%) compared to the others, whereas the combinatorial aspect was the lowest (21%). Although most students achieved the Minimum Mastery Criterion (MMC) in their academic performance, no significant relationship was found between formal reasoning ability and chemistry learning outcomes. This is attributed to the dominance of students who remain at the concrete stage (54.29%), which limits their ability to comprehend abstract chemistry concepts. These findings indicate a mismatch between academic achievement and formal reasoning ability, and highlight the importance of implementing systematic and contextual learning strategies to enhance students’ formal reasoning in understanding chemistry concepts.
Analysis of Students’ Learning Difficulties in Science on the Topic of Additive Substances at Junior High School Sari, Lala; Enawaty, Eny; Sahputra, Rachmat
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 4 (2025): August 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i4.17120

Abstract

This study aims to describe students’ learning difficulties in science subjects on the topic of additive substances at SMP Swasta Sivaliputta Kubu Raya and to identify the factors contributing to these difficulties. The research employed a descriptive quantitative method, with data collected through questionnaires, unstructured interviews, observations, and documentation. The study involved 36 eighth-grade students as participants. The findings indicate that learning difficulties are influenced by internal factors, particularly study habits (49%), which fall into the category of “moderately experiencing difficulties.”This study recommends the implementation of interactive and contextual learning strategies, as well as the reinforcement of independent study habits, to improve students” understanding of science subjects, particularly the topic of additive substances.
ANALISIS STRATEGI PEMASARAN COCA-COLA DALAM MENINGKATKAN OMZET PT. COCA-COLA DISTRIBUSI INDONESIA DI KALIMANTAN BARAT Priyanto, Agus; Sahputra, Rachmat; Tawil, Hamzah
COSMOS : Jurnal Ilmu Pendidikan, Ekonomi dan Teknologi Vol 1 No 5 (2024): Agustus
Publisher : PUSDATIN Institut Agama Islam Sultan Muhammad Syafiuddin Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37567/cosmos.v1i5.180

Abstract

This study analyzes Coca-Cola's marketing strategy in West Kalimantan by considering national economic factors and local market dynamics. Using a qualitative descriptive design with SWOT analysis, this research examines soft drink market conditions, consumer preferences, distribution position of PT Coca-Cola Distribusi Indonesia, and opportunities and challenges in increasing turnover. The results showed that Coca-Cola's marketing strategy in West Kalimantan needs to be adjusted to local consumer preferences and market dynamics. Recommendations include content adjustment based on demographics, local collaboration, and focus on potential economic sectors. This research provides theoretical and practical contributions for Coca-Cola to design more effective marketing strategies in West Kalimantan.
STRATEGI PEMASARAN DALAM MENINGKATKAN PENJUALAN DI SHOWROOM MOBIL PT. ANZON AUTO PLAZA Ekawati, Tri; Sahputra, Rachmat; Tawil, Hamzah
COSMOS : Jurnal Ilmu Pendidikan, Ekonomi dan Teknologi Vol 1 No 5 (2024): Agustus
Publisher : PUSDATIN Institut Agama Islam Sultan Muhammad Syafiuddin Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37567/cosmos.v1i5.181

Abstract

This research analyzes the role of marketing strategies in increasing sales of PT Anzon Auto Plaza's car showroom in the midst of fierce competition in the Indonesian automotive industry. This research uses a qualitative descriptive design by collecting primary and secondary data through observations, interviews, and internal company sales data. The results of the analysis show that MPV models, particularly Avanza and Calya, are the best-selling vehicle models, which may be influenced by effective discount promotions. The time trend shows that despite an increase in demand for motor vehicles due to economic growth and urbanization, PT Anzon Auto Plaza experienced a 23% decrease in sales during the period January to March 2023, possibly influenced by seasonal factors such as the month of Ramadan and economic fluctuations. Increased sales at the beginning of the year, possibly influenced by economic factors. Based on the research results, it is recommended that PT Anzon Auto Plaza implement a stronger marketing strategy during February and March, diversify the product portfolio, continue promotional programs that have proven effective, conduct more in-depth market research, and evaluate the success of MPV models to improve the marketing strategy of other models.
Co-Authors A.A. Ketut Agung Cahyawan W Afriyanti, Fitria AGUS PRIYANTO Agusta, Muhammad Farras Leonasa Anamas, Fauzan Zasqi Andi Ifriani Harun Andi Rahman Anggela, Anastasia Apecawati, Linda Dwi Ari Fauzi Hakim, Ari Fauzi Arina Ulfah Astri Pratiwi, Astri Atika, Dian Suci Burhan Burhan, Burhan Deas, Ogi Dedimus Dedimus, Dedimus Dwi Widiarti, Dwi Ekawati, Tri EKO RUBIANTO Elly Yana, Elly Eni Mayasari Eny Enawaty Erlina ERLINA Erlina Erlina Erlina*, Erlina Ernawati F02111018, Ernawati Erni Dwi Astuti, Erni Dwi Etiovia, Rosalyna Yoesi Evi Sumarni, Evi Fania, Ririn Putri Fitriati, Mariza Gito Purwono Hairida Hairida Hartati Widyaningsih, Fransiska Tri Hartoyo, Masbudi Harun, Andi Ifriany Hidayat, Nina Ariefa Holly, Desi Natalia Ifriani, Andi Ifriany, Andi Ikhsan Danu, Ikhsan Indriani, Evy Ira Lestari Jane Arantika Kardian Fathu Rahmi, Kardian Fathu Karmida, Karmida Kartila, Desi Kartini Kartini Kastia, Lia Khumairo, Siti Nurafni Krisna Rendi Awalludin Kuang, Sun Kurniawati, Rini Lestari, Yuniar Dwi Lukman Hadi, Lukman Lusi, Yohana Maria Ulfah Mariati F17111027, Mariati Masriani . Miranti, Maya Muhammad Akip, Muhammad Nancy Nurwezia Nasi, Lukas Nesim Nurfitriani, Suri Nurhelmi Nurhelmi, Nurhelmi Nurul Apsari Nuzlia F02111009, Nuzlia Pawestri, Nur Arneta Putra, Rody Putri, Dwi Ditha Putri, Rizky Oktora Prihandini Eka Rachmawati, Fitriyani Ikka Rahmat Rasmawan Rengen, Yunita Ellysa Rini Muharini Rizka Rayani, Rizka Rody Putra Sartika Roni, Ropinus Santi, Lusia Saputra, Eko Fery Haryadi Sari, Jossy Marinda Sari, Juwita Wulan Sari, Lala Sasri, Risya Sayak, Selly Marsela Ludovika Sembiring, Rinawati Siahaan, Friscila Sumila, Sumila Suprianto, Bintang Syf Bella T. Alkadrie Tawil, Hamzah theresia, monica Tulus Junanto Wachidah, Nur Wakidi Wakidi Wati, Mila Karmila Wulandari, Renita YANTO YANTO Yanto, Irwanda As Zuhermandi Zuhermandi, Zuhermandi