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Analysis of Science Literacy Skill of Chemistry Education Students of Tanjungpura University Resi Febriyanti; Husna Amalya Melati; Erlina Erlina; Rachmat Sahputra; Maria Ulfah
Jurnal Pendidikan dan Pembelajaran Kimia Vol 10, No 3 (2021): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract: Analysis of Science Literacy Skill of Chemistry Education Students of Tanjungpura University. Scientific literacy skill is one of the abilities that must be possessed by Chemistry Education students as prospective teachers. This research employs a quantitative descriptive method which aims to analyze the scientific literacy skills of the Chemistry Education students of Tanjungpura University. Fourty-three students in the fourth year of the 2020/2021 academic year participated in this study. Scientific literacy tests, questionnaires and interviews were used as to collect the data. The scientific literacy test is used to measure aspects of knowledge and competence which adopted from the Dutch National Chemistry Exam consisted of 16 questions. The 11 statements in the questionnaires are used to measure the aspects of attitudes. Interviews are used to confirm the results of both test and questionnaire. Data were analyzed by calculating the test scores and the percentage of students’ answers on the questionnaire. Based on data analysis, students' scientific literacy skills of knowledge and competence aspect are classified as low with an average score of 43 and 38, while the attitude aspect is classified as moderate with an average percentage of 75%. Students' scientific literacy skills in both aspects need to be improved through the integration of scientific literacy in the learning process and in the use of learning media.Keywords: science literacy skills, prospective chemistry teacher, quantitative descriptiveDOI: 10.23960/jppk.v10.i3.2021.09

Pengaruh Model Problem Based Learning (PBL) Terhadap Hasil Belajar Siswa Pada Materi Elektrokimia Isranti Nurul Choiriyah; Masriani Masriani; Rahmat Rasmawan; Erlina Erlina; Rody Putra Sartika
Hydrogen: Jurnal Kependidikan Kimia Vol 10, No 2 (2022): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v10i2.5797

The aim of this study was to see how learning results differ before and after using the Problem Based Learning (PBL) model, as well as to see how the PBL learning model affects the electrochemistry material in class XII IPA SMA N 11 Pontianak. The form of research used with a research sample of 35 persons was pre-experimental using a one-group pretest-posttest design. Pre-test and post-test data collecting methods were used. The normality test with the Shapiro-Wilk test was employed in the data analysis technique, and the results of the pre-test and post-test revealed that the data were not normally distributed, with Asymp.Sig.(2-tailed) less than 0.05. The Asymp.Sig.(2-tailed) value of the Wilcoxon test was less than 0.05. These findings suggest that there are changes in learning outcomes before and after using a PBL learning paradigm as a treatment. The pre-test and post-test mean scores were 53.71 and 84.57, respectively. An increasing in learning outcomes in electrochemical material is obtained by obtaining an effect size calculation value of 1.6, or the equivalent of 33% of the contribution of the PBL model.Based on the result of the pre-test & post-test there are difference in learning outcomes before and after using the PBL.

Pengembangan LKPD Disertai Hybridization Kit Berbasis Discovery Learning pada Materi Bentuk Molekul dengan Teori Hibridisasi untuk Pembelajaran Siswa Kelas X Noval Lerian; Erlina Erlina*; Andi Ifriany Harun; Rachmat Saputra; Risya Sasri
Jurnal Pendidikan Sains Indonesia Vol 10, No 4 (2022): OCTOBER 2022
Publisher : Universitas Syiah Kuala

Molecular geometry is a subject that many students find difficult to understand. This is because students have to imagine those molecules in order to fully understand the content. To help students understand those concepts, the learning meda that can be seen directly is needed. This study aims to produce students’ worksheet (LKPD) on molecular geometry and a Hy-Kit (Hybridization Kit) based on discovery learning. In addition, the validity and students’ responses also measured towards those LKPD and Hy-Kit. The LKPD was arranged based on discovery learning model and equipped with Hy-Kit. The research method is a research and development using the ADDIE model. The test of the product was carried out twice. These are group tests (limited tests) and field tests. The result of the study that discovery learning-based LKPD and Hy-Kit had a validity level of materials aspect, the level of media aspect and level of bahasa aspect were k=1.00 with very high category. The response of students for the group test and for the field test were k= 0.89 and k=0.90 which means very good/valid/very interested. Both results indicates that the LKPD and Hy-Kit are valid, feasible and ready to use in the learning process

Profile of Critical Thinking Skills of Chemistry Education Students in Solving Problems Related to the Concept of Mole Jenny Pratiwi; Rahmat Rasmawan*; Erlina Erlina; Eny Enawaty; Maria Ulfah
Jurnal Pendidikan Sains Indonesia Vol 11, No 3 (2023): JULY 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v11i3.30372

Critical thinking skills are needed in solving problems because identitying problems requires an analytical thinking process based on clear data and reasons. The purpose of this study was to describe the critical thinking skills of chemistry education students class of 2020 in solving problems related to the mole concept. The type of research used in this study is descriptive quantitative. Subjects who participated voluntarily in this study were 38 people out of 49 chemistry education students class of 2020. Data collection techniques using measurement and direct communication. The research instrument used was adopted from the stoichiometry e-book developed by Rahmat Rasmawan in 2022 which has been validated by 10 validators with a score of 85 which means it is valid and can be used. The data analysis technique used was descriptive analysis. The results showed that critical thinking skills in the skilled category was 40%, while in the less and unskilled were 55% and 5% respectively. In each indicator, which are making assumptions is in the highly skilled criteria with 66%, making inductive thinking conclusions are in the skilled criteria with 84%, and interpreting information is in the unskilled criteria with 61%. The critical thinking skills of students in the 2020 chemistry education class are still in the unskilled category, this is due to the inhibiting factors, namely the online learning system and inappropriate learning methods

Profil Kemampuan Literasi Digital Pada Mahasiswa Pendidikan Kimia FKIP Untan Sebagai Calon Guru Valencya Delima Sianipar; Erlina Erlina; Ira Lestari; Eny Enawaty; Tulus Junanto
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 4 (2023): August 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i4.8067

Mahasiswa program pendidikan sebagai seorang calon guru harus dapat memanfaatkan teknologi digital untuk mendesain pembelajaran yang aktif. Fokus penelitian ini untuk mengetahui profil literasi digital mahasiswa Pendidikan Kimia Fakultas Keguruan dan Ilmu Pendidikan Universitas Tanjungpura pada 3 angkatan yaitu angkatan 2019, angkatan 2020, dan angkatan 2021 dengan jumlah keseluruhan responden yaitu 157 orang. Adapun metode penelitian yaitu deskriptif kuntitatif. Keterbaharuan dalam penelitian ini yaitu menggunakan 8 aspek literasi digital menurut Hague & Payton. Teknik pengumpulan data yaitu berupa angket profil kemampuan literasi digital dan wawancara. Analisis data dilakukan secara deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa responden memiliki profil literasi digital “Sangat Baik” yaitu pada aspek cultural and social understanding dengan persentase nilai 90%, aspek functional skill and beyondsebesar 84%, aspek e-safety sebesar 83% dan aspek communication sebesar84%. Pada aspek creativity dengan persentase nilai 79%, aspek the ability to find and select sebesar 78%, apek critical thinking and evaluation sebesar 78% serta aspek collaboration sebesar 77% dan masuk pada kategori “Baik”. Berdasarkan hasil analisis data, maka disimpulkan bahwa profil kemampuan literasi digital mahasiswa Pendidikan Kimia Fakultas Keguruan dan Ilmu Keguruan Universitas Tanjungpura sebagai seorang calon guru berada pada kategori “Sangat Baik”. Hal ini mengindikasikan bahwa seorang mahasiswa memiliki kemampuan literasi digital yang memadai sebagai seorang calon guru.Kata Kunci : calon guru, literasi digital, deskriptif kuantitatif, profil, teknologiProfile of Digital Literacy Ability in FKIP Untan Chemistry Education Students as Prospective TeachersAbstractEducation students as prospective teachers must be able to utilize digital technology to design effective and active learning. The focus of this research is to determine the digital literacy profile of Chemistry Education students of the Faculty of Teacher Training and Education of Tanjungpura University. The participants of this study are 3 different cohorts, which are second-year, third-year and fourth-year with a total number of respondents of 157 students. The research method is descriptive quantitative. The update in this research is to use 8 aspects of digital literacy according to Hague & Payton The data collection technique is in the form of a digital literacy ability profile questionnaire and interviews. Data analysis was carried out in a quantitative descriptive manner. The results showed that respondents had a "Very Good" digital literacy in the cultural and social understanding aspects with 90%, while the functional skill and beyond aspects is 84%, the aspect of e-safety is 83% and the aspect of communication is 84%. In the creativity aspect with a percentage value of 79%, the aspect of ability to find and select is 78%, the aspect of critical thinking and evaluation is 78% and the collaboration aspect is 77% included in the "Good" category. Based on the results of data analysis, it was concluded that the digital literacy profile of a Chemistry Education student of Faculty Teacher Training and Education of Tanjungpura University as a prospective teacher was in the "Very Good" category. This category indicates that all students have a proper digital literacy skills as future teacher.

Profile of Critical Thinking Skills of Chemistry Education Students in Solving Problems Related to the Concept of Mole Jenny Pratiwi; Rahmat Rasmawan*; Erlina Erlina; Eny Enawaty; Maria Ulfah
Jurnal Pendidikan Sains Indonesia Vol 11, No 3 (2023): JULY 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v11i3.30372

Critical thinking skills are needed in solving problems because identitying problems requires an analytical thinking process based on clear data and reasons. The purpose of this study was to describe the critical thinking skills of chemistry education students class of 2020 in solving problems related to the mole concept. The type of research used in this study is descriptive quantitative. Subjects who participated voluntarily in this study were 38 people out of 49 chemistry education students class of 2020. Data collection techniques using measurement and direct communication. The research instrument used was adopted from the stoichiometry e-book developed by Rahmat Rasmawan in 2022 which has been validated by 10 validators with a score of 85 which means it is valid and can be used. The data analysis technique used was descriptive analysis. The results showed that critical thinking skills in the skilled category was 40%, while in the less and unskilled were 55% and 5% respectively. In each indicator, which are making assumptions is in the highly skilled criteria with 66%, making inductive thinking conclusions are in the skilled criteria with 84%, and interpreting information is in the unskilled criteria with 61%. The critical thinking skills of students in the 2020 chemistry education class are still in the unskilled category, this is due to the inhibiting factors, namely the online learning system and inappropriate learning methods

The Effect of Different Solvents on Total Tannin Content of Cengkodok (Melastoma malabathricum) Leaf Extracts Masriani Masriani; Khofifah Aditha Parawansa; Risya Sasri; Ajuk Sapar; Erlina Erlina; Ersando Ersando
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9774

The use of synthetic dyes as color enhancers or generators has caused various environmental and health problems. Plant tannin biomordants offer an alternative solution to address these issues. The sample used in this study were Cengkodok (M. malabathricum) plants that grow wild in places that get enough sunlight such as shrubs. Phytochemical screening on various parts of the cengkodok plant revealed that the highest tannin content is found in the leaf. However, until now there has been no scientific evidence that presents differences in tannin levels in cengkodok leaf with various types of solvents. This study aims to determine the yield and total tannin content of cengkodok leaf extract obtained through maceration process using methanol, ethanol, and ethyl acetate solvents. The extract yield was determined by comparing the weight of the dry extract with the powdered cengkodok leaf material. The total tannin content was analyzed using UV-Vis spectroscopy at a wavelength of 755.8 nm with Folin-Ciocalteu reagent and sodium carbonate. Tannic acid was used as a reference. The research results showed that the yield values for Cengkodok leaf extracted with methanol, ethanol, and ethyl acetate were 5.05%, 4.72%, and 1.59%, respectively. The total tannin content of cengkodok leaf extracts with methanol, ethanol, and ethyl acetate solvents was 0.47%±0.04, 0.37%±0.01, and 0.19%±0.04, respectively. Based on this research, it can be concluded that methanol is the most effective solvent in extraction and determination of total tannin content of Cengkodok leaf extracts.

The Effect of Different Extraction Methods on Total Tannin Content of Methanol Extract of Simpur Air Leaves (Dillenia suffruticosa) Sri Wahyuni; Masriani Masriani; Risya Sasri; Ajuk Sapar; Erlina Erlina; Ersando Ersando
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9897

The use of metal mordants in fabric dyeing can harm the environment and health, so it is necessary to look for natural mordants that are more environmentally friendly. The utilization of Simpur Air leaves (Dillenia suffruticosa) as a biomordant is one of the efforts to produce a more environmentally friendly tannin mordant. D. suffruticosa has been reported to contain tannin compounds in all parts of the plant. However, scientific evidence of differences in the total tannin content of methanol extracts of D. suffruticosa leaves with various extraction methods have not been found so far. This study aims to determine the effect of different extraction methods on the yield value and total tannin content of methanol extracts of D.suffruticosa leaves using UV-Vis spectrophotometric method at a wavelength of 755.8 nm with Folin Ciocalteau reagent. D. suffruticosa leaves are extracted by using three methods, namely maceration, soxhletation and reflux. Tannic acid is used as a comparator. The results show that the yield value of D. suffruticosa leaves extracted by maceration, soxhletation and reflux methods were 8.35%; 12.26%; and 25.24%, respectively. The total tannin content of methanol extract of D. suffruticosa leaves with maceration method is 0.15% ± 0.007; soxhletation is 0.18% ± 0.007 and reflux is 0.21% ± 0.016. Based on the results of the data analysis, the significance value <0.05 was obtained. It can be concluded that the extraction method affects the yield value and total tannin content of methanol extract of D. suffruticosa leaves.

Inquiry Ability Profile of SMAN 8 Pontianak Students on Salt Hydrolysis Subject Material Fifi Alaida; Erlina Erlina; Ira Lestari; Rachmat Sahputra; Maria Ulfah
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 5 (2023): October 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i5.8767

The inquiry ability is an ability to obtain information through observation or experimentation to solve a problem by using critical and logical thinking skills which include several stages, namely the stages of formulating problems, formulating hypotheses, analyzing data, and concluding. This study aimed to determine student’s ability to inquire about the salt hydrolysis material at SMAN 8 Pontianak. The type of research used is descriptive research using the case study method. The research subjects were 20 students of class XI science at SMAN 8 Pontianak. The instrument used is an inquiry-ability test in the form of 4 essay questions and interview guidelines as a supporting instrument. The results showed that the average ability to inquire of students was included in the good category. The results of the analysis on each aspect stated that the average student inquiry ability in the aspect of formulating problems obtained a value of 80.6% and was classified as a good category. The aspect of formulating a hypothesis has an average value of 73% with a good category. The aspect of analyzing the data has a value of 55.8% with a fairly good category. While the aspect of formulating conclusions has a value of 60.6% with a fairly good category.

Metacognitive Assesment Profile of Prospective Chemistry Educators Sumila Sumila; Rachmat Sahputra; Erlina Erlina; Eny Enawaty; Risya Sasri
Jurnal Tadris Kimiya Vol 8, No 2 (2023)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v8i2.28147

Metacognitive awareness (MA) plays an important role in classroom learning as it enhances self-teaching capabilities on students. Therefore, it is necessary to know the level of awareness possessed by a teacher. This study aimed to describe metacognitive awareness profile of prospective chemistry educators. The method of research is descriptive quantitative using survey methods. The participants consisted of students undergoing their final semester. The instrument used was the MAIT-18 (Metacognitive-Awareness Inventory for Teachers-18). This instrument has two indicators, specifically cognitive knowledge and regulation. The results showed that students had a good level of cognitive knowledge and regulation with 80% and 77%, respectively. Therefore, the overall percentage of metacognitive awareness obtained was 80%. These results suggest that prospective chemistry educators have a good awareness of metacognition. This is indicates they can influence positive things on students, foster autonomy in teaching and learning, also can be an asset to be an effective teacher.

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