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Identifying Student Misconceptions in Buffer Solution Concepts Using Mental Model-Based Diagnostic Test Ramlawati Ramlawati; Husna Husna; Halimah Hussain; Nur Indah Sari; Nurul Ilmi
JIPI (Jurnal IPA & Pembelajaran IPA) Vol. 9 No. 4: DECEMBER 2025
Publisher : Universitas Syiah Kuala, in collaboration with the Perkumpulan Pendidik IPA Indonesia (PPII), (MoU)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i4.288

Abstract

Chemistry learning often presents challenges in the form of misconceptions, particularly concerning buffer solutions. This material is abstract as it involves the concepts of chemical equilibrium and acid-base properties. This study aims to provide information on using diagnostic tests with the interview-about-event method to explore students' mental models. The research employed a descriptive qualitative method with nine 12th-grade students from a high school in Makassar City. Data was collected through in-depth interviews that asked students to explain given phenomena, utilizing research instruments in the form of a four-tier diagnostic test and semi-structured interviews. The answers of each student were mapped to obtain a profile of their mental models. The results indicated that students' mental models revealed diversity in their responses, especially at the submicroscopic level. Their mental models tended to be simple, incomplete, and macroscopic, characterized by misconceptions such as considering equilibrium shifts to be separate from the direct reactions of buffer components, misunderstandings in using arrows for partial and complete ionization, incorrect definitions of acids, and misconceptions about buffer solutions neutralizing pH or causing pH changes. The diversity and consistency of these misconceptions underscore the importance of a pedagogical approach focused on deep conceptual understanding and the integration of multiple levels of chemical representation.
PENGEMBANGAN INSTRUMEN TES KETERAMPILAN PROSES SAINS (KPS) PADA MATERI LAJU REAKSI: ANALISIS DENGAN MODEL RASCH Nur Islamiah; Ramlawati Ramlawati; Sudding Sudding
ACADEMIA: Jurnal Inovasi Riset Akademik Vol. 6 No. 3 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/academia.v6i3.13820

Abstract

Science process skills (SPS) are a key component of chemistry learning under the Kurikulum Merdeka, yet classroom assessment in chemistry still emphasizes knowledge over skills, and systematically designed SPS test instruments remain limited particularly for the reaction rate topic, which is closely tied to scientific inquiry activities. This gap is widened by the limited integration of expert validation with empirical Rasch Model analysis in developing SPS instruments for this topic, making the development of a valid, practical, and reliable instrument an important undertaking. This study is a development research project aimed at producing a valid, practical, and reliable Science Process Skills (SPS) test instrument covering the topic of reaction rates. The instrument was developed using the Plomp model, which comprises the preliminary investigation, design, realization/construction, test/evaluation/revision, and implementation phases. The developed instrument consists of multiple-choice questions with five answer options covering science process skill indicators. Field testing was conducted with students from class XI MK 1 at SMA Negeri 10 Gowa. Data were collected via expert validation sheets, teacher and student response questionnaires, and student test results. Data analysis was performed using descriptive methods and the Rasch Model. The results indicate that the developed SPS test instrument was confirmed valid based on expert judgment, reliable based on both theoretical and empirical consistency analyses, and practical based on highly positive teacher responses regarding its ease of use. Consequently, the developed SPS test instrument for the reaction rate topic satisfies the requirements for validity, reliability, and practicality, making it suitable for measuring students' science process skills. ABSTRAK Keterampilan proses sains (KPS) merupakan aspek penting dalam pembelajaran kimia pada Kurikulum Merdeka, namun penilaian pembelajaran kimia di sekolah masih lebih menitikberatkan pada aspek pengetahuan, sementara instrumen tes yang secara sistematis mengukur KPS masih terbatas, khususnya pada materi laju reaksi yang sarat aktivitas ilmiah. Kesenjangan ini diperbesar oleh belum terintegrasinya validasi ahli dengan analisis empiris berbasis Model Rasch pada pengembangan instrumen KPS materi tersebut, sehingga pengembangan instrumen yang valid, praktis, dan reliabel menjadi penting untuk dilakukan. Penelitian ini merupakan penelitian pengembangan yang bertujuan menghasilkan instrumen tes keterampilan proses sains (KPS) pada materi laju reaksi yang valid, praktis, dan reliabel. Pengembangan instrumen menggunakan model Plomp yang meliputi fase investigasi awal, fase desain, fase realisasi atau konstruksi, fase tes, evaluasi dan revisi, serta fase implementasi. Instrumen yang dikembangkan berupa butir soal pilihan ganda dengan lima alternatif jawaban yang meliputi indikator keterampilan proses sains. Uji coba dilakukan pada peserta didik kelas XI MK 1 SMA Negeri 10 Gowa. Data penelitian diperoleh melalui lembar validasi ahli, angket respons guru dan peserta didik, serta hasil tes peserta didik. Analisis data dilakukan secara deskriptif dan menggunakan Model Rasch. Hasil penelitian menunjukkan bahwa instrumen tes keterampilan proses sains yang dikembangkan dinyatakan valid berdasarkan penilaian ahli, reliabel berdasarkan analisis konsistensi teoretis maupun empiris, serta praktis berdasarkan respons guru yang sangat positif terhadap kemudahan penggunaannya. Dengan demikian, instrumen tes keterampilan proses sains pada materi laju reaksi yang telah dikembangkan telah memenuhi aspek kevalidan, reliabilitas, dan kepraktisan yang layak digunakan sebagai alat ukur keterampilan proses sains peserta didik.
Implementing Teaching at the Right Level to Improve Science Learning Outcomes: A Classroom Action Research Study Khairun Nisa Lukman; Ramlawati Ramlawati; Rosdiana Rosdiana
MISOOL: Jurnal Pendidikan Dasar Vol. 8 No. 1 (2026)
Publisher : Program Studi Pendidikan Guru Madrasah Ibtidaiyah Institut Agama Islam Negeri Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47945/misool.v8i1.3290

Abstract

Low understanding of simple machine concepts and diverse cognitive readiness among students often limit the effectiveness of standard science instruction. This classroom action research investigated the implementation of Teaching at the Right Level (TaRL) to improve science learning outcomes among Grade VIII students at SMP Negeri 3 Makassar. The study followed the Kemmis and McTaggart model across three cycles involving 48 students. Data were collected using validated learning-outcome tests, classroom observation sheets, and student-response questionnaires, then analyzed descriptively using quantitative percentages and qualitative thematic reflection. The intervention evolved systematically: Cycle I utilized initial heterogeneous grouping; Cycle II shifted to small homogeneous grouping based on cognitive readiness with targeted scaffolding; and Cycle III further reduced group sizes alongside integrated practical hands-on activities. Classical mastery increased from 33.3% in Cycle I to 89.6% in Cycle II and 97.9% in Cycle III, accompanied by an increase in mean scores from 65.33 to 89.58 and 94.00. Within the scope of this action research, these iterative refinements particularly aligning group homogeneity, scaffolding, and practical tasks with student readiness were associated with improved student participation and learning outcomes across cognitive levels.
Enhancing Students’ Collaboration Skills Through Gallery Walk-Based Science Learning: A Classroom Action Research In Grade IX Delfina Ulfiyani; Ramlawati Ramlawati; Rosdiana Rosdiana
MISOOL: Jurnal Pendidikan Dasar Vol. 8 No. 1 (2026)
Publisher : Program Studi Pendidikan Guru Madrasah Ibtidaiyah Institut Agama Islam Negeri Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47945/misool.v8i2.3291

Abstract

This classroom action research aimed to improve the collaboration skills of Grade IX students at SMP Negeri 3 Makassar in science learning on environmental issues, specifically the energy and food crisis sub-topics, through the Gallery Walk method integrated within a Problem-Based Learning sequence. The study was conducted in two cycles, each comprising planning, action, observation, and reflection stages, involving 36 Grade IX students. Collaboration skills were assessed through an observation rubric covering six indicators (effective communication, active participation, shared responsibility, respect for peers' opinions, cooperation in completing tasks, and conflict management), while a separate student-response questionnaire measured perceptions of the Gallery Walk method. The average collaboration skills score increased from 15.75 (65.6%, Skilled category) in Cycle I to 23.25 (96.9%, Very Skilled category) in Cycle II, following refinements that clarified role division, provided gallery-visit assessment guidelines, and reinforced student motivation. All students (100%) reported strong agreement across the response-questionnaire items, indicating positive perceptions of the method; this result reflects perception rather than a measure of collaboration-skill achievement and should not be treated as additional evidence of effectiveness. Given the single-group, two-cycle design without a comparison condition, the findings indicate a substantial increase in observed collaboration skills across cycles following the Gallery Walk-based intervention, rather than a definitively proven causal effect.
Pengaruh Metode Drill terhadap Peningkatkan Hasil Belajar IPA Peserta Didik Ana Amalya; Muhammad Aqil Rusli; Ramlawati Ramlawati
Celebes Science Education Volume 5 Number 2 June 2026
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/cse.v5i2.66568

Abstract

This research aims to determine: 1) The level of science learning outcomes of class VIII students at SMPN 3 Pangkep who are taught using the drill method on substance pressure material and its application in everyday life. 2) The level of science learning outcomes of class VIII students at SMPN 3 Pangkep who were taught without using the drill method on substance pressure material and its application in everyday life. 3) The influence of the drill method on improving the learning outcomes of class VIII students at SMPN 1 Pangkep. This type of research is Quasi Experimental Design research and One Group Pretest-Posttest Design research design. The population of this study was all students in class VIII of SMP Negeri 3 Pangkep which consisted of 2 classes with a total of 39 students. The sample was selected using the Saturated Sampling technique and obtained 20 students from class VIII.A as the experimental class and VIII.B 19 students as the control class. The research instrument is 20 multiple choice test items. Data were analyzed using descriptive statistics. The results of the research show that: The learning outcomes of class VIII students at SMP Negeri 3 Pangkep who were taught using the drill method were in the medium category with a score of 14.00. The learning outcomes of class VIII students at SMP Negeri 3 Pangkajene who were taught without using the drill method are in the low category with a score of 10.16, so it can be concluded that there is an influence of the drill method on the learning outcomes of class VIII students at SMP Negeri 3 Pangkep studying the Material of Subtance Pressure and its Application in Everyday Life.
Pengaruh Pendekatan TaRL Berbasis Diferensiasi Proses terhadap Keterampilan Kolaborasi Peserta Didik Khairun Nisa'a Lukman; Ramlawati Ramlawati; Nurhayani H. Muhiddin
Celebes Science Education Volume 5 Number 2 June 2026
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/cse.v5i2.75058

Abstract

This study aims to examine the effect of the Teaching at Right Level (TaRL) approach based on process differentiation on the collaboration skills of class VIII students at UPT SPF SMPN 33 Makassar, focusing on the subject matter of Vibrations and Waves. The research method used was a quasi-experimental with a pretest-posttest design. Data were collected through group collaboration skills observation sheets. Data analysis was carried out using statistical tests to compare the results between the two groups. Inferential statistical analysis using t-test data obtained a significance of 0.032 <0.05. Based on the results of the study, it was concluded that there was an effect of the TaRL approach based on process differentiation on the collaboration skills of class VIII students at UPT SPF SPMN 33 Makassar on the subject matter of vibrations and waves.
Pengaruh E-LKPD berbasis Inkuiri Terstruktur terhadap Keterampilan Proses Sains (KPS) Peserta Didik Sutireski Ibrahim; Ramlawati Ramlawati; Nurhayani H. Muhiddin
Celebes Science Education Volume 5 Number 2 June 2026
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/cse.v5i2.82225

Abstract

The purpose of this study was to determine 1) The level of science process skills of class VIII students of SMP IT Nurul Fikri after the implementation of E-LKPD based on structured inquiry, 2) The level of KPS of class VIII students of SMP IT Nurul Fikri after the implementation of LKPD based on direct learning model, 3) The increase in KPS of class VIII students of SMPIT Nurul Fikri after the implementation of E-LKPD based on structured inquiry, 4) The effect of E-LKPD based on structured inquiry on KPS of class VIII students of SMPIT Nurul Fikri. This study used a Quasi Experimental approach with a Nonequivalent Control Group Design research design. The study population included all class VIII students of SMP IT Nurul Fikri, in the 2023/2024 academic year, divided into 4 classes with a total of 63 students. The sampling technique determined class VIII A with 12 students as the experimental class and class VIII D with 11 students as the control class. The results of the study showed that: 1) The level of KPS of class VIII students of SMP IT Nurul Fikri after the implementation of E-LKPD based on structured inquiry was in the medium category with a score of 14.08. 2) The level of KPS of class VIII students of SMPIT Nurul Fikri after the implementation of LKPD based on direct learning model was in the medium category with a score of 11.45. 3) The increase in KPS of class VIII students of SMPIT Nurul Fikri after the implementation of E-LKPD based on structured inquiry was in the medium category with an N-Gain of 0.51. 4) There was an influence of E-LKPD based on structured inquiry on KPS of class VIII students of SMPIT Nurul Fikri.
Identifikasi Kandungan Zat Aditif Makanan Kemasan Dan Sosialisasi Dampaknya Bagi Peserta didik SMP Telkom Makassar Nabila Putri Salsabila Syam; Andi Sairah Rayhanat El Qalb; Edi Pamungkas; Ramlawati Ramlawati; Nur Indah Sari
Jurnal Hasil-Hasil Pengabdian dan Pemberdayaan Masyarakat Vol. 5 No. 2 (2026): Volume 05 Nomor 02 (Mei-Juli 2026)
Publisher : Jurusan Matematika FMIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/zmj8tm51

Abstract

Makanan kemasan yang mengandung zat aditif telah menjadi bagian dari pola konsumsi harian peserta didik, namun pemahaman mereka terhadap risiko kesehatannya masih sangat rendah. Kegiatan pengabdian masyarakat ini bertujuan mengidentifikasi kandungan zat aditif pada makanan kemasan yang dikonsumsi peserta didik SMP Telkom Makassar serta meningkatkan pengetahuan dan kesadaran kritis peserta didik terhadap keamanan pangan. Metode pelaksanaan terdiri atas tiga tahap: pemaparan materi interaktif, sesi tanya jawab, dan kegiatan proyek identifikasi zat aditif pada label kemasan produk makanan. Hasil identifikasi menunjukkan bahwa seluruh produk makanan kemasan yang dianalisis peserta didik mengandung minimal satu jenis zat aditif, dengan temuan dominan berupa penguat rasa (MSG dan dinatrium inosinat), pewarna sintetis (tartrazin dan kuning kuinolin), pengawet (natrium benzoat dan kalium sorbat), serta pemanis buatan (aspartam dan sakarin). Beberapa produk mengandung lebih dari lima jenis zat aditif dalam satu kemasan. Peserta didik menunjukkan peningkatan pemahaman yang signifikan setelah kegiatan berlangsung, ditandai dengan kemampuan mengidentifikasi zat aditif secara mandiri dan munculnya kesadaran kritis dalam memilih produk pangan. Program edukasi keamanan pangan berbasis sekolah terbukti efektif dan perlu diimplementasikan secara berkelanjutan.
Peningkatan Keterampilan Berpikir Kritis Murid Kelas IX pada Materi Isu-Isu Lingkungan melalui Pendekatan Deep Learning A.Tenri Ayu Wulandari; Ramlawati Ramlawati; Rosdiana Rosdiana
Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Vol. 5 No. 5 (2026): Volume 5 Nomor 5 Tahun 2026
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/venn.v5i5.647

Abstract

This study aimed to improve students’ critical thinking skills through the implementation of a Deep Learning approach in teaching Environmental Issues to Grade IX-2 students at SMP Negeri 3 Makassar. The study employed a Classroom Action Research (CAR) design conducted in three cycles, with each cycle consisting of four stages: (1) planning, (2) action implementation, (3) observation, and (4) reflection. The participants were 22 students from Grade IX-2 at SMP Negeri 3 Makassar. Data were collected using a critical thinking skills test and an observation sheet assessing the implementation of the Deep Learning approach. The data were analyzed using quantitative and qualitative descriptive analyses. The results showed that the students’ mean critical thinking score increased from 84.09 in Cycle I to 98.18 in Cycle II and 99.09 in Cycle III. The observation results also indicated an improvement in the implementation of the Deep Learning approach, from 73.21% in Cycle I to 94.64% in Cycle II, reaching 100% in Cycle III. Furthermore, student engagement increased from 50.00% in Cycle I to 75.00% in Cycle II and reached 100% in Cycle III. These findings indicate that the implementation of the Deep Learning approach can foster more active, meaningful, and collaborative learning, thereby contributing to the improvement of students’ critical thinking skills in learning Environmental Issues.
Co-Authors . Jasmal . Sulfikar A. Agus Salim A.Tenri Ayu Wulandari Abdul Mun&#039;im Adawiyah, Putri Rabiatul Agnes Meltipulciana Mendila Ahmad Syakur Ahmad Yani Ahmad Zuhudy Al Ikhlas Dwi Ariyanto Alimin Alimin Amalia Safitri Amalia Safitri Ana Amalya Ana Seftia Andriani Andi Afrinaramadhani Hatta Andi Rahmat Saleh Andi Sairah Rayhanat El Qalb Aqil Rahmatul Fiqram Arie Arma Arsyad Arif, Rifda Nurhikmahwati Army Auliah Ashhabul Kahfi Khaer Asri Asri Asri Malisan Asriani Asriani Asriani Haruna Aswir Aswir Ayu Nur Indah Sari Azmiahtulhawa Kisman Dede Suryadie Delfina Ulfiyani Dien Aulia Bansu Dyah Ayu Listantiningtyas Edi Pamungkas Eka Ferawaty Erika Utami Erika Erni Yuliana R Fatmawati Fatmawati Firmansyah Firmansyah Fitha Armeinty Lino Padang Fitha Armeinty Lino Padang Fitri Bestari Haji Muhiddin, Nurhayani Halijah Halijah Halimah Hussain Hamid, Serna Hartono Hartono Hasanuddin Hasanuddin Hasanuddin Hasanuddin Hasjunika Hasbi Hasmarani, Santi Hasmarani, Santi Hasmi Hasmi Herinda Mardin Husna Husna Huznul Amalia S Ian Alfian InayatuDzil Izzati Iva Nilawati Khairun Nisa Lukman Khairun Nisa&#039;a Lukman Laksono Trisnantoro Magfira Ramadani Mardiah Umar Marwah Marwah Maryono Maryono Mohammad wijaya Mohammad WIJAYA Muallif Muh. Tawil Muhammad Akbar Muhammad Anwar Muhammad Aqil Rusli Muhammad Aqil Rusli Muhammad Aqil Rusli Muhammad Arsyad Muhammad Danial Muhammad Fajar Marsuki Muhammad Harisa Alim Muhammad Harisah Alim Muhammad Harisah Alim Muhammad Risal, Muhammad Muhammad Yushan Mulya Dwi Putra Mustar, Mustika Muthmainnah Muthmainnah Mutiah Muthmainnah Mutmainnah Nabila Attahira Nabila Putri Salsabila Syam Nadhia Nadhia Nadia Mumtaz Hairuddin Nadila Pasomba Nasmur MT Kohar Nia Agustina Nirmala, Wa Nur Afni Yulistiawati Nur Arfa Yanti Nur Asia Nur Azizah Ashara Putri Nur Faisah Nur Indah Sari Nur Indah Sari Nur Islamiah Nur Rajemi Hasan Nur Rajemi Hasan Nur Rajemi Hasan Nur Rajemi Hasan Nurfahmi Hamka Nurfitra Yanto Nurhayani H Muhiddin Nurhayani H. Muhiddin Nurhayati Nurhayati B. Nurlaelah Nurlaelah Nurrahmadani A. Nursam Samal Nursuci Arfiany Nurul Hikma Ardianto Nurul Ilmi Nurul Maulidia Nurul Muchlisa Maulidya Nuruldin Al Islami Nurwana Hikma Oty Damitri Paramita Indra Saputri Puput Habri Anugrah Putri Nabila Tsabitah Arman Ratna Khaerati Armas, Andi Ratna Khaerati Armas, Andi Ratnawati Maming Ratnawaty Mamin Reski Amelia Reski Ramadani Rifajrin Rifajrin Rifda Mardian Arif Rifda Nur Hikmawati Arif Rosdiana Rosdiana Rosdiana Rosdiana Rosdiana Rosdiana Rusdianto Rusdianto Rusdianto Rusdianto Ruslan . Sabriani Sabriani Sahrani U Salma Samputri Salma Samputri Salma Samputri Sariyani Sariyani Seprian Patandianan Serna Hamid Siti Darmi Amir Siti Fayrina Amin Siti Nur Wanda Sitti Rahma Yunus Sitti Rahma Yunus Sitti Rahma Yunus Sitti Rahma Yunus Sitti Saenab Sitti Zaenab Rahmansyah St. Mutia Alfiyanti Muhiddin Suci Muliana Suciati Udin Sudding Sudding Sulfikar Sulfikar Sutireski Ibrahim Tandzilah Mutmainnah Tazia Dharma Wata Tri Wahyuni Uswatun Nisa Uswatun Nisa Wa Nirmala Wayan Trisnawati Yahya Yahya Yulinar Anshar Yumni Amalina Yunus, Sitti Rahma Zalwa Salima Zulqifli Alqadri