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INDONESIA
Lantanida Journal
Published by Universitas Islam Negeri Ar-Raniry Banda Aceh
ISSN : 23563133     EISSN : 25489062     DOI : -
Core Subject : Science, Education, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Education
Lantanida Journal is an, scientific journal open-access containing results research, literature reviews and recent news on science and technology in the areas of educational learning and learning development. This journal is formed from the initiative of Leaders Chemistry departmen, lecturers, staff, alumni and students of Chemistry Education Department UIN Ar-Raniry Banda Aceh.
Arjuna Subject : -
Articles 193 Documents
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THE IMPACT OF DISCOVERY LEARNING ON HIGHER-ORDER THINKING SKILLS IN CHEMISTRY: A META-ANALYSIS Ardila, Mutia; Samosir, Rafidah Almira; Pratiwi, Alfira Julian; Kurniawan, Ekin Dwi Arif; Ridho, Dimas; Sa’diyah, Halimatus
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29914

Abstract

This research examines the effect of the discovery learning model on higher-order thinking skills in chemistry subjects at the high school level in Indonesia with a total sample of 230 students. The research method is a meta-analysis study with a range of research data from 2015-2024 based on Google Scholar indexed by Sinta. Heterogeneity test analysis using JASP version 0.8.5 shows a τ² value of 0.236 and a τ value of 0.485, with an I² value approaching 100% (CI: 74.015%–98.358%). The results indicate a high level of heterogeneity (98.358%). Therefore, a random effects model is used in the analysis. The meta-analysis results suggest that discovery learning significantly affects higher-order thinking skills (z = 4.730; p < 0.001; 95% CI). Funnel plot and Egger's tests did not show publication bias, supported by a fail-safe N value 488. The results of this study reinforce empirical evidence that discovery learning is a practical approach to chemistry learning.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS PROJECT BASED LEARNING PADA MATERI TITRASI KOMPLEKSOMETRI Samosir, Rafidah Almira; Ardila, Mutia
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29923

Abstract

Research on developing project-based learning materials for complexometric titration materials is still rare, despite the fact that these materials have shown promising in chemical education. The objective of this project is to create a complexometric titration learning resource based on Project-Based Learning (PjBL) and assess its viability and efficacy in improving students' psychomotor abilities and learning outcomes. Using the ADDIE paradigm, the study used a Research and Development (R&D) methodology. The media, which includes instructive videos, digital resources, and a useful mini-project, was created with Adobe Flash CS6. 42 chemical education students from Universitas Negeri Medan (UNIMED) participated in a restricted trial after validation by two subject matter experts and two media experts. Subject matter experts and media experts gave the validation results an average score of 3.29 and 3.46, respectively, which both fell into the "highly feasible" category. During the implementation phase, the experimental class outperformed the control group in terms of learning outcomes (gain score of 0.722) and psychomotor skills (average score of 3.64). With an average score of 3.46, students' reactions to the media were likewise very favorable. These results demonstrate that the developed media is useful for enhancing students' engagement in learning complexometric titration, conceptual knowledge, and laboratory skills.
AKTIVITAS ANTIBAKTERI EKSTRAK DAN FRAKSI N-HEKSANA KULIT BUAH KAKAO (Theobroma cacao L.) Purnama, Agnia; Ginting, Binawati; Yahya, Mustanir; Afifi, Muhammad Ridho; Maghfirah, Ruhul; Farida, Mutia; Hamdiyati, Hamdiyati
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29989

Abstract

This study aims to evaluate the antibacterial activity of the n-hexane extract and fraction of cocoa pod husk against Staphylococcus aureus. The antibacterial was tested using the paper disc diffusion method. The results showed that the extract inhibited bacterial with inhibition zones of 7.13 ± 0.29; 8.58 ± 0.14; 9.60 ± 0.87; and 10.97 ± 0.08 mm at concentrations of 1%, 5%, 10%, and 20%, respectively. The fractionation process produced 9 fractions and the 9th fraction showed the greatest inhibitory activity with inhibition zone diameters of 7.42 ± 0.03; 9.22 ± 0.03; 10.43 ± 0.03; and 11.83 ± 0.03 mm at concentrations of 1%; 5%; 10%; and 20% respectively. Phytochemical analysis and thin-layer chromatography (TLC) showed the presence of terpenoid and steroid compounds. Based on the antibacterial activity exhibited by the extract and fraction, this plant shows potential to be developed as a source of natural antibacterials.
SOCIOSCIENTIFIC ISSUES AS A PEDAGOGICAL APPROACH TO FOSTER SCIENTIFIC ARGUMENTATION IN BIOPLASTIC PRODUCTION USING SUGARCANE BAGASSE Salsafitri, Medina Fasya; Sunarya, Risa Rahmawati; Helsy, Imelda; Dahriah, Iis
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/0jje1904

Abstract

This study aims to develop students’ scientific argumentation through the implementation of socioscientific issues-based learning in the production of bioplastics from sugarcane bagasse (Saccharum officinarum). The method employed is pre-experimental with a one-shot case study design. The research subjects consisted of 36 eleventh-grade students from the Industrial Chemistry program at a vocational high school (SMK) in Cimahi City. The research instruments included student activity observation sheets, student worksheets, argumentation debates, and scientific argumentation tests. Students’ activities during the learning process showed excellent results, with an average score of 94. Meanwhile, their ability to complete the student worksheets achieved an average score of 98, both falling into the “very good” category. The majority of students’ oral argumentation was at level 2, which includes a claim supported by evidence without rebuttal. In contrast, the development of students’ written scientific argumentation after the implementation of socioscientific issues was at quality level 3, characterized by arguments that include weak rebuttals. These findings indicate that socioscientific issues-based learning can be effective in developing students’ scientific argumentation, although further instruction is needed to enhance students’ ability to present stronger, evidence-based rebuttals.
PEMBELAJARAN BERBASIS PROYEK PADA PEMBUATAN FACE TONER KEFIR BERAS MERAH (Oryza nivara) UNTUK MENGEMBANGKAN KINERJA ILMIAH Akila, Febiyuniesa Noorwahnov; Windayani, Neneng; Sundari, Citra Deliana Dewi; Sukmawardani, Yulia
Lantanida Journal Vol 13 No 2 (2025): July-December 2025: In Press ....
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/d5wrdc15

Abstract

This study aims to describe the project-based learning process in developing students' scientific performance with the help of project-based worksheets in making red rice kefir face toner (Oryza nivara), as well as analyzing the characteristics of the resulting face toner product. The method used was a pre-experimental design with a One-Shot Case Study, involving three groups of Grade XI Industrial Pharmacy students, using instruments validated by two experts in Chemistry Education and one vocational school teacher. The results showed that students' activities during the learning process achieved an average score of 92.4, and their scientific performance demonstrated significant improvement with an average score of 94.2, both falling into the “very good” category. Analysis of the product characteristics showed that all formulations of red rice kefir face toner (Oryza nivara) met SNI standards with good quality based on organoleptic parameters, pH, homogeneity, moisture content, and irritation, and the product received an average score of 97.5, categorized as excellent. Additionally, the IC50 value obtained was 73.13 ppm, indicating that this face toner has sufficiently strong antioxidant activity. These results demonstrate that project-based learning with the assistance of project-based worksheets is effective in developing students' scientific performance and producing innovative products.
EXTRACTION, PHYTOCHEMICAL SCREENING, TOTAL PHENOLIC CONTENT, AND ANTIBACTERIAL ACTIVITY OF MISTLETOE ON OIL PALM (Ficus heteropleura Blume) LEAVES Hamiro, Fauzia; Perdana, Fitra; Syahri, Jufrizal
Lantanida Journal Vol 13 No 2 (2025): July-December 2025: In Press ....
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/37mpve13

Abstract

Ficus heteropleura Blume, commonly known as mistletoe on oil palm, is a semi-parasitic plant that grows on oil palm trees. This study aimed to investigate the secondary metabolite profile, determine of total phenolic content, and evaluate antibacterial activity of ethyl acetate extract of F. heteropleura leaves. Extraction was performed using a grade maceration method. Qualitative phytochemical screening was conducted to identify major classes of secondary metabolites, and total phenolic content was quantitatively determined using the Folin–Ciocalteu method with gallic acid as the standard. Ethyl acetate extraction yielded 19.27 g of crude extract. Phytochemical analysis revealed the presence of steroids, flavonoids, saponins, and tannins. The total phenolic content was determined to be 35.730 mg GAE/g. UV-Vis spectrophotometric analysis showed characteristic absorption peaks at 475.0 nm and 432.8 nm, indicating the presence of phenolic pigments with conjugated C=O groups and a peak at 666.3 nm associated with chlorophyll, contributing to the green coloration. FTIR analysis confirmed the presence of functional groups such as O–H, C≡C, C=O, C=C, and C–O. Antibacterial activity demonstrated that the ethyl acetate extract exhibited strong inhibitory effects against Staphylococcus aureus and Escherichia coli, with average inhibition zone diameters ranging from 5 to 10 mm, indicating strong antibacterial activity.
DEVELOPMENT OF DIGITAL ASSESSMENT TOOLS USING WORDWALL AND PLICKERS FOR CHEMISTRY LEARNING IN SENIOR HIGH SCHOOL Sari, Ratih Permana; Hasby, Hasby; Hiskia, Evolando; Setiawaty, Sri
Lantanida Journal Vol 13 No 2 (2025): July-December 2025: In Press ....
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/43dhps97

Abstract

This study addresses the need for interactive digital assessment tools in chemistry learning, where traditional evaluation often fails to engage students or provide immediate feedback. Wordwall and Plickers were selected as platforms because both are widely accessible and classroom-friendly, yet their effectiveness in formative evaluation has not been systematically compared. The purpose of this research was to develop and evaluate interactive assessments based on these two applications for high school chemistry. A Research and Development (R&D) approach was applied by combining the Borg & Gall and 4-D models. The process included four stages: (1) Define analyzing curriculum requirements and learner needs; (2) Design and construct interactive items and adapt them to Wordwall and Plickers; (3) Develop expert validation covering content accuracy, construct clarity, and usability, followed by revisions and limited trials; and (4) Disseminate large-scale implementation with 200 tenth-grade students from public high schools in Aceh Province. Instruments consisted of expert validation sheets, student response questionnaires (attractiveness, ease of use, and learning benefit), and pretest–posttest assessments. The results showed high validity (CVR = 0.90), positive student responses, and significant learning gains for both platforms (N-gain = 0.70 for Wordwall, 0.64 for Plickers). No significant difference was found between them (p = 0.252), indicating that both tools are valid, practical, and effective for formative assessment in chemistry learning.
KAJIAN KINETIKA ADSORPSI LOGAM TIMBAL (Pb) OLEH ADSORBEN PASIR TERAKTIVASI NAOH DENGAN VARIASI KONSENTRASI Karbeka, Martasiana
Lantanida Journal Vol 12 No 1 (2024)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v12i1.20530

Abstract

In this research, a study of the adsorption kinetics of heavy metal Pb(II) with white sand adsorbent has been carried out. The use of white sand as an adsorbent is based on the habits of the people who use white sand to purify water. For wider use, in this study, it was used to adsorb lead metal which has a high toxicity. Increased the adsorption power of white sand, chemical activation was carried out using NaOH with various concentrations of 2, 4 and 6 M. Adsorption kinetics of Pb(II) by adsorbents were carried out using a batch system with time variations of 15, 30, 60, 90, 120 minutes. The behavior pattern of Pb(II) absorption by the adsorbent was studied using first-order, second-order kinetic models, pseudo-first-order Lagergren's equation and pseudo-second-order Ho's equation. The results showed that the absorption of Pb(II) by sand adsorbents in various variations, both control and activated NaOH 2, 4 and 6 M, followed a pseudo-second-order adsorption kinetics with a coefficient of determination (R2) of 1. In addition, based on kinetic studies pseudo second order there is no value comparison between qe, exp and qe, hit. The highest k value was found in the 4 M NaOH activated sand adsorbent, which was 206.921 g/mg.h, indicating a faster absorption rate of the adsorbate by the adsorbent. Thus, the activation of the adsorbent at variations in base concentration affects the surface area of the adsorbent where the greater the surface area, the faster the absorption rate of Pb(II).
PENGEMBANGAN MODUL PRAKTIKUM BIOKIMIA: ANALISIS KANDUNGAN JAHE DENGAN GC-MS TERINTEGRASI PENDIDIKAN ISLAMI MENGGUNAKAN MODEL INKUIRI TERBIMBING Wicaksono, Ardian Trio; Mubarak, Hafiz; Fatya, Alvian Ikhsanul; Ardiansyah, Ardiansyah
Lantanida Journal Vol 12 No 1 (2024)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v12i1.22442

Abstract

This research aims to develop biochemistry practical instructions that are integrated with Islamic education based on local wisdom in South Kalimantan which utilizes Gas Chromatography-Mass Spectrometry (GC-MS) technology using a guided inquiry model. The method for developing practical instructions uses the ADDIE model including the needs analysis, design, development, implementation and evaluation stages. Data was obtained through interviews with Banjar residents, literature studies to integrate Islam and science, validity tests of material experts and media experts, as well as surveys of student responses to practical instructions that have been implemented in the learning environment. The research results showed that the development of guided inquiry-based practical instructions that utilized GC-MS technology was categorized as the learning source (78.75), and very valid as the instructional Media (81.25). Then, based on student responses, this practical guide received an excellent category (95) to be applied to the biochemistry practical course
PENGEMBANGAN LKPD INTERAKTIF BERBANTUAN LIVEWORKSHEETS PADA MATERI WUJUD ZAT DAN PERUBAHANNYA Prasetya, Cyndi; Maisarah, Maisarah; Tanjung, Rinta Arianti; Faradilla, Meriza
Lantanida Journal Vol 12 No 1 (2024)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v12i1.23070

Abstract

In initial observations in class IV at SDN 3 Langsa, it was found that there were still many students who had difficulty understanding the matter and their changes material and they needed supporting digital teaching materials. Hence, this article aims to develop an interactive LKPD with the help of Live worksheets on the matter and their changes material. The development of the LKPD is carried out through four stages of the Thiagarajan or 4D model. At the define stage, reasons were found related to the need to develop interactive LKPD assisted by Live worksheets which provide learning assistance in the form of attractive visuals, experiment-based, and the use of digital technology. At the design stage, an interactive LKPD was designed with the help of Live worksheets on matter and their changes material in softcopy form. At the develop stage, validation is carried out with material experts, digital teaching materials experts and linguistic experts. In the first validation, an average score of 72.59% was obtained in the valid category and the product had to be improved according to the validator's suggestions, while the average score in the second validation was 92.42% in the very valid category so that the interactive LKPD was assisted by Live worksheets on matter and their changes material are well worth sharing. At the disseminate stage, the product is implemented and distributed in class IV of state elementary schools. This article also suggests that educators use LKPD according to the characteristics of the students and the characteristics of the subject so that effective and enjoyable learning can be carried out.

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