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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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PENGEMBANGAN MODUL BERBASIS MULTIPEL REPRESENTASI SEBAGAI SUMBER BELAJAR PENDUKUNG PADA MATA KULIAH STOIKIOMETRI Chusnur Rahmi
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.15111

Abstract

This study is inspired by the lack of supporting learning tools in stoichiometry lectures, which causes students to struggle with the concept of the quantity of reactants and products involved in theoretical reactions and chemical calculations as a whole. To strengthen their comprehension of stoichiometric ideas at the macroscopic, submicroscopic, and symbolic levels, students require additional learning resources. The purpose of this research is to create modules based on numerous representations, exposing the amount of validity and practicability of modules as a source of student learning in stoichiometry courses. The research approach employed is R&D using the Dick & Carey development model through the steps of needs analysis, product design, validation, and evaluation. The study included two expert validators and 35 students from the Chemistry Education Study Program at UIN Ar-Raniry. Validity and practicality questionnaires were used to acquire research data. Based on the expert team's assessment, the learning module fulfilled the very valid criteria with an average assessment score of 95.17%. With a practicality score of 94.17% based on student responses, the learning module passes the criterion of being very practical. As a result, the multi-representation-based learning module may be inferred to be very valid and very practical for usage as a supporting learning resource for students in more optimal stoichiometry lectures.
DEVELOPMENT OF STUDENT WORKSHEETS BASED ON PEER LED TEAM LEARNING MODEL ON COLLOIDAL MATERIAL Zulfadli Zulfadli; Isyqa Silma; Habibati Habibati; Kana Puspita; Latifah Hanum; Rahmad Rizki Fazli
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.15704

Abstract

To further improve achievement of the given learning objectives, chemistry learning requires instructional materials that encourage active engagement of students. The goal of this research was to create student worksheets based on Peer Led Team Learning (PLTL) on colloid material, to establish the validity of student worksheets based on PLTL on colloid material, and assess teacher and student responses to worksheets. PLTL based students on colloid material that has been developed. This research approach is known as research and development (R&D), and it is carried out utilizing the 4D model (define, design, develop, and disseminate). Purposive sampling was used for the sample technique. The study was carried out at four schools: MAN 3, SMAN 5, SMAN 12, and SMAN 15 Adidarma Banda Aceh. Validating the practicality of student worksheets and questionnaire responses from teachers and students were used to obtain data. This study obtained the following results: (1) validation of the feasibility of student worksheets by expert validators of 92.3% and based on the chemistry teacher's assessment of 86.5% in the very good or valid category; (2) results of the teacher's responses to the students' worksheets obtained a percentage of 88.1% in the very good category; and (3) results of the students'responses to the students' worksheets obtained a percentage of 79.9% in the good category. Based on the findings, it is possible to infer that the student worksheet based on PLTL on colloid material is appropriate for use as teaching material on colloid material.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS STEM UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KREATIF Mukhlis Mukhlis; Nava Hiqmatunnisaq; Barisah Barisah
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.15679

Abstract

The purpose of this study is to define the characteristics of STEM-based LKPD, as well as to establish the practicality of STEM-based LKPD and the growth in students' creative thinking abilities. The literature study approach was employed in this study, which was gathered from various sources such as books, journals, and articles linked to the observed research. Determine the topic, obtain information, determine research, collect data sources, prepare data presentation, and compile are the steps in this research. The findings of this research analysis in the three journals studied are visible, specifically the comparison of the development of STEM-based worksheets in improving creative thinking skills to obtain results that are very feasible to develop when compared to the development of critical thinking and scientific literacy. This is demonstrated by the 85.21% improvement in creative thinking skills acquired from STEM-based LKPD development research. Furthermore, based on the analysis of literature studies on the growth of STEM-based LKPD in enhancing creative thinking skills, it has improved year after year, with the feasibility percentage reaching 96% in 2022.
FERMENTASI MOLASE DARI TETES TEBU SEBAGAI ALTERNATIF BAHAN BAKAR TERBARUKAN Adean Mayasri
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.15474

Abstract

Molasses fermentation from molasses has been studied as an alternative to renewable energy. The goal of this research was to determine molasses fermentation as an alternative to renewable energy. The goal of this research was to monitor the alcohol concentration and pH levels during the fermentation process. This study employed a completely randomized design (CRD) method with two components. Factor A is the amount of time required for aeration. Molasses dilution is factor B. Factor A was tested across four different time periods: 24, 48, 72, and 96 hours. Factor B was tested using three different ratios: 1: 1.5, 1: 2, and 1: 2.5. The calculations of alcohol content FcalcP = 74.35> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79 revealed that components A and B had a significant impact on the final alcohol content. The BNJ 1% was calculated to be 0.63. This demonstrates that A4B3 is the most effective treatment. FcalcP = 2.85> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79, indicating that factors A and B have a highly substantial effect on acidity (pH). The BNJ 5% was obtained at a value of 0.61. This also demonstrates the optimal acidity conditions in A4B3 therapy. Based on these findings, it is clear that aeration for 96 hours and dilution with a 1: 2.5 ratio produce the greatest outcomes and the maximum alcohol content. At a pH of 4.45, the average bioethanol content is 6.31%.
REMOVAL OF Cd2+ IN WASTEWATER USING ZEOLITIC IMIDAZOLATE FRAMEWORK-8 (ZIF-8) AS SYNTHESIS ADSORBENT Rahmatul Fajri; Fira Asfahani; Yulida Amri; Jofrishal Jofrishal
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.17831

Abstract

Zeolitic Imidazole Framework-8 (ZIF-8) has been synthesized by dissolving Zn(NO3)2.4H2O and 2-MeIM into a methanol solvent and solvothermal method. The synthesized ZIF-8 will be applied as a cadmium (Cd) adsorbent in Polluted water. Several characterization methods were conducted, including XRD, FTIR, and AAS. The XRD analysis shows that the prominent characteristic peaks of ZIF-8 at an angle of 2θ = 7,25o; 10,26o; 12,57o; 16,22o; and 17,86o. At the same time, the FTIR analysis showed the presence of functional groups of Zn-N, C-N, C=N, C=C, and C-H on aromatic 2-Methyl Immidazole  as an indication that ZIF-8 has been completely established. Based on the result, the AAS method performed to analyze ZIF-8 ability to adsorb Cd in the water showed that Cd ions adsorption increased at pH 6 and 8 while decreasing at pH 7.
EFFECT OF GIVING MATOA FRUIT PEEL EXTRACT ON LEVELS OF SUPEROXIDE DISMUTASE (SOD), MALONDIALDEHYDE (MDA) AND HISTOLOGICAL FEATURES OF THE LUNGS OF RATS GIVEN CIGARETTE SMOKE EXPOSURE Levinna, Levinna; Suyono, Tan; Chiuman, Linda
Lantanida Journal Vol 11, No 2 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i2.19113

Abstract

The matoa plant (Pometia pinnata) is known as a medicinal plant that has high antioxidant activity. Cigarette smoke produces free radicals and causes oxidative stress, a condition where the number of free radicals in the body exceeds the capacity to neutralize them. The aim of this study was to evaluate the levels of malondialdehyde (MDA), superoxide dismutase (SOD) and histopathological features of rat’s lung exposed to cigarette smoke and matoa peels extract. The research method uses laboratory experimental studies using rats as research subjects. The design used was Randomized Posttest Only with Control Group Design. 24 male white rats of the wistar strain were divided into 6 groups: normal, negative control, positive control, and group I, II, III were given matoa peels extract 3, 6, and 12 mg/kgBW respectively and exposure to cigarette smoke for 14 days. After 14 days, MDA, SOD and histopathological picture of the rats' lungs will be compared based on the group. Data analysis was carried out using a one-way ANOVA test. The results showed that matoa peels extract could reduce MDA levels and increase SOD activity in rats exposed to cigarette smoke (p value <0.05). Group that is given matoa peels extract 12 mg/kgBW can reduce lung tissue damage.
PENERAPAN MODEL PEMBELAJARAN READ-ANSWER-DISCUSS-EXPLAIN-CREATE (RADEC) PADA MATERI LARUTAN PENYANGGA DI SMAS INSHAFUDDIN BANDA ACEH Hanum, Latifah; Zulfadli, Zulfadli; Nisa, Chairun
Lantanida Journal Vol 11, No 2 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i2.20360

Abstract

This study titled "Application of Read-Answer-Discuss-Explain-Create (RADEC) Model on Buffer Solution Material at SMAS Inshafuddin Banda Aceh " aims to explain activities, analyze learning results, and describe student responses. This qualitative descriptive study was carried out at SMAS Inshafuddin, with 20 participants chosen through purposive sampling from class XI IPA 1. Observing activities, learning outcome exams, and student response questionnaires on the RADEC learning model were used to collect data. The data analysis technique for student activities was collected by giving observers observation sheets, learning outcomes were obtained by giving them multiple-choice questions, and student responses were obtained by giving them a questionnaire. Data analysis revealed that student actions in the first meeting were 78.8% in the good category, 85.98% in the good category in the second meeting, and 92.86% in the very good category in the third meeting. In the good group, the completeness of student learning outcomes was 77.8%. The very good category received 92.25% of the student responses. Based on the study's findings, it is possible to infer that student activities have improved, student learning outcomes have been completed, and students have responded well to the introduction of the RADEC learning model.
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.
PENENTUAN KADAR FENOLIK DAN FLAVONOID TOTAL PADA BUAH KELAPA SAWIT (Elais guineensis Jacq) DENGAN METODE SPEKTROFOTOMETRI UV-VIS Lestari, Lestari; Ata, Putri Fritami; Yulianti, Ayu Dwi; Hasan, Hafia; Cahyo, Risky Nor; Rahman, Zainur Arif; Rahmadani, Agung; Erika, Farah
Lantanida Journal Vol 11, No 2 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i2.19676

Abstract

The oil palm is a widely cultivated plant recognized by the public for its production of industrial raw materials for everyday use. Oil palm is rich in potential antioxidant activity, primarily due to its high content of phenolic and flavonoid compunds. This research aimed to assess the levels of total phenolic and flavonoid compunds in oil palm fruit. The extract sample was examined using the UV-Vis Spectrophotometry method, with the total phenolic measured at 744.8 nm, the total flavoinoid content at 440.  The findigs indicated that the total phenolic content in the oil palm fruit extract was 1.46 mg/L while the total flavonoid content was 5.81 mg/L. 
LITERATURE REVIEW OF PHYTOCHEMICAL PROPERTIES OF FIG (Ficus Carica L) IN SURAH AT-TIN VERSE 1 Zulkarnain, Zulkarnain; Suprapto, Suprapto; Maigoda, Tony Cortis
Lantanida Journal Vol 11, No 2 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i2.20453

Abstract

Allah provides information about the fig plant in Surah At-Tin verse 1. The fig plant is a special plant that is specifically mentioned in the Quran and is widely used for human health such as preventing hypertension, maintaining heart health, and treating diabetes. The fig plant is a plant that has many chemically active compounds that are useful in medicine. This study aims to determine the content of the surah At-Tin verse 1 and identify the features of the fig plant from the perspective of plant phytochemicals. The results showed that Allah swore by the name of the fig plant in Surah At-Tin verse 1. This indicates that there are many blessings on the fig plant for human life. Phytochemical test results showed that the fig plant has chemical compounds that are beneficial to human health such as flavonoids, alkaloids, phenolics, terpenoids, and saponins. These compounds act as anti-oxidants, function in the detoxification of toxins, prevent cancer, regulate the stability of the body's metabolism, and scavenge radicals that enter the body. The fig plant has a high economic value. The cultivation of fig plants is a good economic commodity for the welfare of society. Figs can be processed into products that sell well in the market.

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