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Lantanida Journal

lantanida
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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 195 Documents

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MOTIVASI MAHASISWA DALAM PEMBELAJARAN KIMIA Amna Emda
Lantanida Journal Vol 7, No 1 (2019)
Publisher : UIN AR-RANIRY

Learning motivation was something that exists in an individual mind for doing something to achieve the goal. Motivation was needed to improve the cognitive abilities of each individual. In reality, there are still students at the Chemical Education Study Program who were less motivated to learn. This was characterized by active, discipline, task completion, the willingness of student to ask questions and solve problems in learning is still lacking. The aim of this study was to determine the level of motivation, influencing factors and efforts to increase student motivation in chemistry learning. The results showed that student's motivation in improving cognitive abilities on average was still low. The efforts were made by lecturers are to instil the values that can motivate the learning process, apply the better strategies and quality of teaching, approach individually or groups to improve the lecturer skills and apply the contextual based learning.

PENGGUNAAN ZAT WARNA ORGANIK UNTUK MENINGKATKAN PERFORMA PERALATAN SOLAR CELL MENGGUNAKAN METODA DENSITY FUNCTIONAL THEORY (DFT) Imelda Imelda
Lantanida Journal Vol 4, No 1 (2016)
Publisher : UIN AR-RANIRY

To improve the performance of solar cell equipment can be used dye as a sensitizer, a sensitizer role is to help absorb visible light in equipment that uses a semiconductor with a wide band gap such as TiO2 and ZnO . The calculation methods used are computationally DFT and TD - DFT to determine the value of geometry optimization , energy , population density and optical properties . As for knowing the performance of experimental equipment can be obtained from the value of the open circuit voltage ( Voc ) , short circuit current density (Jsc), Fill Factor. The dye can be enhanced sensitivity capabilities with the engineering structure or conformation of the molecule.

PENGGUNAAN TERUNG RIMBANG PADA MATERI IKATAN KIMIA DAN BENTUK MOLEKUL UNTUK MENINGKATKAN PEMAHAMAN PESERTA DIDIK Khairiah Khairiah
Lantanida Journal Vol 7, No 2 (2019)
Publisher : UIN AR-RANIRY

Study on the use of molymod from turkey berries to improve students' understanding of chemical bonding material and molecular shape has been carried out. This study aimed to improve student learning outcomes and activities in studying chemical bonding and molecular shapes. This study was a classroom action research conducted in three cycles. The subjects of this study were students of class XI IA 2 of SMAN 1 Sukamakmur, Aceh Besar. The increasing of student learning outcomes of the three cycles in a row that was 51.19, 61.90, and 75. The classical completeness obtained in each cycle was 19%, 57%, and 86% with the completeness criteria of low, medium, and high graduation. Besides looking at the learning outcomes, the activity of students has also seen an increase in each cycle. The activities of the student in each cycle respectively were obtained about 43%, 62%, and 81% with the criteria of quite active, active, and very active. Based on the result of the learning outcomes and observation of students showed that the learning of chemical bonds and molecular models by using turkey berries has been successfully conducted.

STRUKTUR ATOM BERDASARKAN ILMU KIMIA DAN PERSPEKTIF AL-QURAN Sabarni Sabarni
Lantanida Journal Vol 7, No 1 (2019)
Publisher : UIN AR-RANIRY

The atomic structure is one of the chemical metrics studied in high schools and universities. The concept of atomic structure in learning chemistry in schools and universities is usually not associated with religion, especially the Qur'an, so as if learning atomic structure is a separate science and has no connection with the Qur'an. To show that the Qur'an is a guideline for humanity, including examining the natural sciences including chemistry, the authors want to examine the concept of atomic structure based on chemistry and the perspective of the Qur'an which aims to determine the concept of the development of atomic models, particles basic and electron configurations based on chemistry and the Qur'anic perspective. The data collection technique used in this study is literature (Library Research), namely studying the Qur’an and studying reading books, journals, dictates, dictionaries, and scientific works. From this study shows that the Qur'an has been proven to explain the concept of atomic structure first and in the Qur'an there is the concept of atomic structure which is in line with the chemical concept proposed by chemists.

STUDI ZINK OKSIDA SEBAGAI KOMPOSIT BIOPLASTIK GENUS METROXXLEN, Sp DENGAN METODE MELT INTERCALTION Khairun Nisah
Lantanida Journal Vol 7, No 2 (2019)
Publisher : UIN AR-RANIRY

Bioplastic is one step to reduce the use of plastics that are not environmentally friendly. The genus Metroxxlen, Sp is a bioplastic material that is easily degraded in the soil. Metroxxlen, Sp has a hydrophilic nature which results in its physical properties being low. Bioplastic Starch Genus Metroxxlen, Sp is made by mixing ZnO as a reinforcement, Genus starch Metroxxlen, Sp as a source of natural polymers, with the addition of glycerol as a plasticizer. The results of the spread of ZnO in bioplastics can be seen with SEM. Comparison of ZnO with Genus Metroxxlen Sp. starch 1-3% wt produced a strengthened mechanism characteristic from 0.40 kg/cm2 to 0.70 kgf /cm2; the change in the extension changed down from 120.4% to 99.00%. For glycerol composition with variations from 1-3% wt, the change in elongation changes to increase from 90.00% to 98.00%, the nature of the mechanism changes to decrease from 0.25 kg/cm2 to 0.20 kgf /cm2.

UPAYA MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI LARUTAN ASAM, BASA DAN GARAM MELALUI PENERAPAN STRATEGI PEMBELAJARAN RESOURSCE BASED LEARNING (RBL) PADA SISWA KELAS XI IPA 3 DI SMAN 22 BANDUNG Hasanah Hasanah
Lantanida Journal Vol 7, No 1 (2019)
Publisher : UIN AR-RANIRY

This research was conducted to improve student learning outcomes using the Resource Based Learning (RBL) strategy. The research method was class action research. The process of this research was carried out through 2 cycles. The researcher used worksheets and evaluation sheets to find out the increase in students' understanding in the upper, middle and lower groups. The subjects in this study were students of class XI IPA 3. The average value of students' abilities in the high group was obtained at 88 in the first cycle and 89 in the second cycle. The medium group average value was 79 in the first cycle and 85 in the second cycle. The low group average value 66 in the first cycle and 72 in the second cycle. Based on learning outcomes data obtained in the first and second cycle, proving that the learning outcomes of class XI IPA 3 students of SMAN 22 Bandung, through the Resource Based Learning (RBL) strategy was increased.

PENGGUNAAN MODEL PEMBELAJARAN SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATIC (STEM) PADA KONSEP ASAM BASA DI SMAN 1 BAITUSSALAM Haris Munandar; Lia Maghfira Izzani; Muammar Yulian
Lantanida Journal Vol 7, No 2 (2019)
Publisher : UIN AR-RANIRY

Based on observations at SMAN 1 Baitussalam, information was obtained that learning outcomes of students on acid-base material were still low, this was caused by the process of learning chemistry that was still teacher-centered and didn’t use specific learning models. The STEM learning model is a One learning model that can be used as solution to this problem is the learning model of Science, Technology, Engineering, and Mathematics (STEM). The purpose of this study was to obtain information about the effect of the STEM learning model on learning outcomes and student responses, especially on the concept of acid-base in SMAN 1 Baitussalam. This study uses Quasi Experimental design, with data collected through test and questionnaires. Student test results were analyzed using SPSS Version 23.0, where the significance value obtained from the t-test analysis was 0,000<0.05 so it can be seen that Ho was rejected and Ha was accepted. Student responses obtained through questionnaires analyzed based on the percentage answers provided by students, the results showed that 93% responses of students were very interested in the STEM learning model. These results indicate that STEM learning model is effective in improving student learning outcomes in SMAN 1 Baitussalam, especially in acid-base concept.

METODE PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNIG (PBL) Rahmadani Rahmadani
Lantanida Journal Vol 7, No 1 (2019)
Publisher : UIN AR-RANIRY

This study aims to determine whether the application of the Problem Based Learning (PBL) learning model can improve students' critical thinking skills and student learning outcomes in the environmental pollution material in class X SMA Negeri 1 Darussalam Aceh Besar. The research was conducted in class X of SMA 1 Darusalam Aceh Besar of 20 students. This research was carried out of 2 cycles. Student learning outcomes data are obtained by giving a test (evaluation) in the form of a description of environmental pollution material. The research results were analyzed by descriptive analysis techniques and percentages. The results of observations of students' critical thinking abilities which showed an increase from cycle I to cycle II which was 59.75% in cycle I to 75.25% in cycle II. And student learning outcomes also increased from 70% in the first cycle to 85% in the second cycle. Based on the results of the research, it can be concluded that the application of Problem Based Learning (PBL) learning models can improve critical thinking skills and student learning outcomes.

PENGEMBANGAN MODUL METODE PROYEK UNTUK MENGETAHUI KETERAMPILAN PROSES SAINS (KPS) SISWA PADA LARUTAN ELEKTROLIT DAN NON ELEKTROLIT irma zarwinda zarwinda
Lantanida Journal Vol 7, No 1 (2019)
Publisher : UIN AR-RANIRY

This study was conducted to develop a project method module on the subject of electrolyte and non – electrolyte solution, to assess the quality of the module based on the experts suggestions, to get the teacher and student responses to the project method module, and know the KPS based student learning styles and the role project method module. The study was conducted in three schools in Banda Aceh (SMA Negeri 11, SMA Negeri 10 Fajar Harapan, and SMA Negeri 5 Banda Aceh) by using quantitative research with research methods of and development (R and D). The design of this study is Pre-test and Post-test Group. Experts assessment for the quality of module shows a score of 4.21 (good), the results showed that 90.67% teachers and 80.68% students responded positively to the module. Hypothesis testing is done toward the pretest and posttest data based on students from three schools with a significant level of 0.05%. The result from pretest data using Mann-Whiteney (U test) have a few different although it did not differ significantly. The result from posttest data using the t test are not significantly. The role of the modul was based on the seen average value of students KPS posttest in three schools which is 72.19 with the criteria of "good" when using project method of chemitry module.

MODEL MENTAL MISKONSEPSI PADA KONSEP KESETIMBANGAN KELARUTAN Chusnur Rahmi; Wiji Wiji; Sri Mulyani
Lantanida Journal Vol 8, No 1 (2020)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v8i1.7108

Study on students' mental model's analysis was done to identify misconceptions about solubility equilibria concept. The method employed in the study was a case study uses a qualitative approach. The participants were 23 students of class XI of a senior high school in Bandung. The instrument used in the study was the Diagnostic Test on Mental Model-Prediction, Observation, Explanation (TDM-POE). The results showed that there were diverse of students' misconceptions about the precipitate formation of a reaction, the effect of common ions and decrease in pH on solubility. Based on the results of the study, many misconceptions occur in the subconcept of the effect of common ions on solubility. Misconceptions arise because students have incomplete mental models at the submicroscopic level.

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Home Page

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Contact Name Adean Mayasri

Contact Email deanmys@gmail.com

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Location Kota banda aceh, Aceh INDONESIA

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Contact Name
Adean Mayasri

Contact Email
deanmys@gmail.com

Phone
-

Journal Mail Official
lantanidajournal@ar-raniry.ac.id

Editorial Address
-

Location
Kota banda aceh,

Aceh

INDONESIA