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All Journal QUANTUM: Jurnal Inovasi Pendidikan Sains Journal of General Education and Humanities Jurnal Akademika Kimia
Magfirah Magfirah
Tadulako University
Humanities Chemistry Education Languange, Linguistic, Communication & Media Mathematics Physics Other

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KONSEPSI PESERTA DIDIK MELALUI TES DIAGNOSTIK TWO TIER DALAM PEMBELAJARAN KIMIA Tri Santoso; Dewi Satria Ahmar; Afadil Afadil; Magfirah Magfirah; Sukmawati Sukmawati
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 14, No 2 (2023): Oktober 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v14i2.16060

Abstract

Penelitian ini bertujuan untuk menganalisis konsepsi peserta didik pada materi hidrokarbon. Penelitian ini merupakan penelitian deskriptif yang mendeskripsikan konsepsi peserta didik yang meliputi pemahaman konsep, miskonsepsi, dan tidak paham konsep. Populasi dalam penelitian ini berjumlah 112 siswa yang berasal dari 2 sekolah SMA yakni SMAN 1 Balaesang dan SMAN 2 Balaesang yang berlokasi di Kecamatan Balaesang Kabupaten Donggala, Provinsi Sulawesi Tengah. Pengambilan sampel menggunakan teknik sampling jenuh sehingga seluruh populasi menjadi sampel penelitian. Instrumen yang digunakan adalah tes diagnostik two tier dengan nilai validitas sebesar 0,88 dan nilai reliabilitas sebesar 0,77 dan wawancara. Hasil penelitian menunjukkan bahwa konsepsi peserta didik di SMAN 1 Balaesang untuk kategori paham konsep sebesar 64,4%, untuk kategori miskonsepsi sebesar 23,4%, dan untuk kategori tidak paham konsep sebesar 12,2%. Konsepsi peserta didik di SMAN 2 Balaesang untuk kategori paham konsep sebesar 59,9%, kategori miskonsepsi sebesar 26,1%, dan kategori tidak paham konsep sebesar 13,9%.
Utilizing Organic Waste to Create Charcoal Briquettes as a Substitute Fuel Aldi F. Uke; Sitti Rahmawati; Magfirah Magfirah; Afadil Afadil; Dewi Salmita; Vivi D. A. Sangkota
Jurnal Akademika Kimia Vol. 15 No. 2 (2026)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2026.v15.i2.pp97-103

Abstract

The generation of organic waste at SMA Negeri 1 Palu is substantial, and it is predominantly disposed of in landfills, leading to environmental concerns and the underutilization of potential resources. This study proposes converting organic waste into charcoal briquettes as a sustainable alternative for waste management and energy production. The objective of this research is to evaluate the composition and physicochemical properties of charcoal briquettes produced from organic waste generated at SMA Negeri 1 Palu. The briquettes were prepared from collected organic waste and characterized using standard fuel-quality parameters. The results showed that the produced briquettes exhibited a calorific value of 4385 cal.g-1, density ranging from 0.75 to 0.86 g.cm-3, and a combustion rate of 0.25 g.s-1. In addition, the moisture content, ash content, volatile matter, and fixed carbon were 7.5091%, 5.5894%, 16.1316%, and 78.279%, respectively. These findings indicate that organic waste-derived briquettes possess acceptable fuel characteristics and demonstrate potential as an alternative renewable energy source. This study highlights a practical approach to reducing organic waste while simultaneously generating value-added energy products, particularly in educational institutions.
The Effect of the Lottery Card Method on Discovery Learning Assisted by Video Learning Media on Student Learning Outcomes Nur Azizah; Tri Santoso; Dewi Satria Ahmar; Magfirah Magfirah; Meida Esterlina Marpaung
Journal of General Education and Humanities Vol. 5 No. 1 (2026): February
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/gehu.v5i1.975

Abstract

This study aims to describe the effect of the lottery card method on student learning outcomes in acid-base solution material during video-assisted discovery learning. This study used a pre-test and post-test control group design. The study population consisted of all 247 ninth-grade students at SMA Negeri 5 Palu, across eight classes.  Two classes were selected as samples, namely class XI Merdeka 5 (control) and class XI Merdeka 6 (experimental), each with the same number of 34 students, using simple random sampling. Data were collected using pre-tests and post-tests. The control class used only the discovery learning model, while the experimental class used the lottery card method in video-assisted discovery learning. From the analysis results, the N-ngai score for the control class was 0.49, and for the experimental class was 0.67, both of which were classified as moderate. Although both were moderate, the N-ngai score for the experimental class was higher than that for the control class. The t-test results showed a significance value of 0.001, which is less than 0.05, so it can be concluded that Ho is rejected and Ha is accepted. Therefore, it can be said that the lottery card method in discovery learning assisted by video media has an effect on student learning outcomes in acid-base solution material.
Utilization of Purple Trumpet Flower Extract (Ruellia Tuberosa L.) as an Alternative Acid-Base Titration Indicator Sahri Labotano; Teguh Sukriawan; Sitti Aminah; Dewi S. Ahmar; Tri Santoso; Magfirah Magfirah
Jurnal Akademika Kimia Vol. 15 No. 2 (2026)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2026.v15.i2.pp150-158

Abstract

Anthocyanin-containing plants have potential as environmentally friendly natural acid–base indicators. However, information regarding the suitability of Ruellia tuberosa L. flower extract as a titration indicator remains limited. The aim of this study was to explore the potential of purple trumpet flower extract (Ruellia tuberosa L.) as an alternative acid-base titration indicator. The method used for flower extraction was stepwise maceration with n-hexane, ethyl acetate, and 70% ethanol. The extract was tested for anthocyanin content, color response in buffer solutions at pH 1–14, and performance in strong acid–strong base, weak acid–strong base, and weak base–strong acid titrations. The extract exhibited red at pH 1–3, pink at pH 4–5, colorless at pH 6–8, green at pH 9–12, and yellow at pH 13–14. Endpoint detection was comparable to phenolphthalein and methyl orange, with only slight differences in endpoint pH values. Purple trumpet flower extract shows potential as a natural acid-base indicator and may serve as an alternative for educational and laboratory applications, although further research on stability and quantitative anthocyanin content is still needed.
The Effect of the PBL Model on Literacy and Numeracy Skills in Acid-Base Material Ratman Ratman; Kasmudin Mustapa; Dewi S. Ahmar; Anastasya Anastasya; Ijirana Ijirana; Magfirah Magfirah; Haeruddin Haeruddin
Jurnal Akademika Kimia Vol. 14 No. 3 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i3.pp169-173

Abstract

Problem-Based Learning is a learning model that focuses primarily on problems in the learning process. It encourages students to collaborate in groups to solve problems through various activities. The purpose of this study was to determine the effect of the Problem-Based Learning (PBL) model on students' numeracy literacy skills in acid-base material. This study used a quantitative, true-experimental design. The research population consisted of 47 students. The research sample was obtained using purposive sampling, divided into an experimental class of 15 students from class XI MIA 2 and a control class of 16 students from class XI MIA 1. The research instruments included a literacy test comprising 20 multiple-choice questions and a numeracy test comprising five essay questions. Experts validated all instruments provided. Data analysis used the Mann-Whitney test. The results of the data analysis showed that the Mann-Whitney test p-value (0.000) was lower than the predetermined significance level of 0.05. Therefore, it can be concluded that the PBL learning model affects students' numeracy literacy skills.
Co-Authors Afadil Afadil Aldi F. Uke Anastasya Anastasya Dewi S. Ahmar Dewi Salmita Dewi Satria Ahmar Haeruddin Haeruddin Ijirana Kasmudin Mustapa Meida Esterlina Marpaung Nur Azizah Ratman Ratman Sahri Labotano Sitti Aminah Sitti Rahmawati Sukmawati Sukmawati Teguh Sukriawan Tri Santoso Vivi D. A. Sangkota