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Edumatsains
Published by Universitas Kristen Indonesia
ISSN : 25277642     EISSN : 25277235     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics
Jurnal EduMatSains merupakan wadah untuk menampung dan mempublikasikan hasil karya baik berupa hasil penelitian maupun kajian teori yang original dalam ruang lingkup pendidikan matematika dan pendidikan sains (fisika, kimia, biologi) serta ilmu matematika dan ilmu sains (fisika, kimia, biologi) bagi semua civitas academika khususnya dosen, guru, peneliti dan mahasiswa. Jurnal EduMatSains terbit sebanyak dua kali dalam satu tahun (Juli dan Januari). Jurnal EduMatSains diterbitkan Oleh Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia.
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Articles 18 Documents
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Search results for , issue "Vol 6 No 1 (2021): Juli" : 18 Documents clear
ANALISIS STRATEGI METAKOGNITIF SISWA DALAM MEMAHAMI DAN MENYELESAIKAN SISTEM PERSAMAAN LINEAR DUA VARIABEL DITINJAU DARI PERBEDAAN GENDER Ryan Nizar Zulfikar; Eva Dwika Masni
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2304

Abstract

The purpose of this study was to analyze students' metacognitive strategies in understanding and solving math problems in terms of gender differences. This type of research is based on a qualitative approach with a descriptive research design. Purposive sample technique is a technique of determining the subject based on certain criteria to make it easier to obtain the desired information. Data collection techniques in this study consisted of interviews, tests, documentation and observations. The data analysis technique in this study consists of reducing data, presenting data and making conclusions. For data validity, this study used triangulation. Triangulation is done by triangulation method. Method triangulation in this research uses two methods, namely interviews and documentation. Based on the results of data analysis, it shows that four aspects of metacognitive strategies, namely the awareness aspect, cognitive aspects, planning aspects and re-checking in understanding and solving mathematical problems in the material of the two-variable linear equation system show that the metacognitive strategies of female and male students in class X SMA 8 Kupang can be said to be good in accordance with the minimum completeness criteria set at school. Even though in the awareness and evaluation aspects, it was still seen that male and female students did not use metacognitive strategies, because understanding the concept in solving story problems was still not understood about the differences in collecting known data and being asked by mathematical modeling. Overall, male and female students were able to understand and solve problems using metacognitive strategies.
MEMBRAN Zirconia.titania UNTUK PENGOLAHAN AIR LIMBAH: KAJIAN LITERATUR Familia Novita Simanjuntak; Ngia Masta
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2375

Abstract

The need for clean water is a necessity to sustain human life. This need will continue increasing in line with the human population growth, but it is not balanced by appropriate wastewater treatment to preserve the clean water stock. Zirconia and titania-based membrane technology is a promising technology in water and waste treatment processes because it is able to produce a good and stable quality of water against chemical reactions, high temperatures, and mechanical stress. This study aims to literature study-based analyze the capability of synthesis, characterization, and application of a membrane that combines zirconia and titania (Zr1-xTix)O2 with Al2O3 as a substrate for domestic wastewater treatment. The discussion describes the method of zirconia.titania membrane application to support its performance in domestic wastewater treatment.
POTENSI EKSTRAK DAUN BINAHONG (Anredera cordifolia (Ten.) Steenis) DAN MINYAK ATSIRI SERAI (Cymbopogon citratus (DC.) Stapf) SEBAGAI BAHAN AKTIF HAND SANITIZER SPRAY Adonia Felma Mosse; Aniek Prasetyaningsih; Dwi Adityarini
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2474

Abstract

Maintaining hand hygiene is an important habit to prevent disease caused by microorganisms and viruses. Handsanitizer is one of hygiene products as antibacterial and practical use. However, the use of alcohol as its main ingredient could irritate skin. Therefore, the alternative of alcohol is urgently found to prevent this side effect in same effectiveness. in this research, Binahong (Anredera cordifolia (Ten.) Steenis leaf extract and lemongrass oil (Cymbopogon citratus (DC.) Stapf) are used to replace alcohol as the main ingredient. This study aims to know the potential antibacterial activity of binahong leaf extract, lemongrass oil and its combination against S.aureus and its effectiveness as an active ingredient in hand sanitizer spray. Binahong extraction using the maceration method. The secondary metabolites of both extracts were identified by phytochemical assay. Then, their antibacterial activity was determined using a disk diffusion test for S. aureus. The organoleptic of hand sanitizer spray was observed. The highest antibacterial activity was obtained from the combination of binahong leaf extract and lemongrass oil 100% at ratio 1:1. This combination was used to formulate the hand sanitizer spray. The highest inhibitory activity of hand sanitizer spray was shown in the formulation with 3% active ingredients (extracts). This product had dark yellow in colour, distinctive aroma, and liquid texture and effectively suppresses bacterial growth on the hands. According to the results, binahong leaf extract and lemongrass oil are potentially used as active ingredients for natural hand sanitizer sprays.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF GALLERY WALK UNTUK MENINGKATKAN HASIL BELAJAR BIOLOGI SISWA KELAS X SMA NEGERI 22 JAKARTA Sondang Rosita Indah
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2796

Abstract

The application of a learning method will greatly affect the ability of students to understand a topic. The purpose of this study is to improve the learning outcomes of Biology of students by implementing cooperative learning model Gallery walk. This research was conducted at SMA Negeri 22 Jakarta in March to June 2019 using the action research method. Data collection is done through the provision of written tests to determine learning outcomes in studying ecosystems and environmental change. The data obtained were then analyzed by calculating the average value of the pretest and the average value of daily tests in cycle I and cycle II. The results showed that learning by applying Gallery walk cooperative learning can improve student Biology learning outcomes. Based on these results it can be concluded that Gallery walk cooperative learning can be used as an effort to improve Biology learning outcomes. The percentage of completeness of pre-cycle, cycle I, and cycle II respectively, namely 8.33%, 47.22%, and 88.89%. The learning outcomes of pre-cycle, cycle I, and cycle II respectively are 57, 68, and 76.
UJI EFEKTIVITAS EPIKARPIUM BUAH NANGKA (artocarpus heterophyllus lamarck.) SEBAGAI SEDIAAN KRIM TABIR SURYA UV-B Tara Inastu Kandarp; Aniek Prasetyaningsih; Vinsa Cantya Prakasita
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2798

Abstract

Sunscreen is needed as protection against the skin from exposure to UV rays, because it will cause erythema, aging skin, blistering, and skin cancer, in skin that is not protected by sunscreen. This study aims to determine the in vitro and in vivo ability of epicarpium A. heterophyllus extract sunscreen cream preparations. This research was conducted in vitro and in vivo, beginning with the extraction process with the maceration method using 70% ethanol, identification of compounds in the extract, TLC, GC-MS, total flavonoids test, physical quality of cream preparations, SPF values ​​of extracts and creams, and in vivo sunscreen activity tests were conducted. The yield percentage produced from 450 grams of simplicia powder was 47.61%. The compounds in A. heterophyllus epicarpium extract are flavonoids, tannins, saponins, terpenoids, steroids, fatty acid groups, alcohol groups, and alkanes. Crude extract contains total flavonoids of 43.625 mgQE / g extract. The 75% concentration in the cream preparation had the highest SPF value of 8.173. The in vivo test used the MED (Minimal Erythema Dose) method of erythema scoring. A concentration of 75% gives the lowest MED value of 0.25. This research is expected to provide information on alternative uses of natural ingredients as the main ingredient of sunscreen so that the use of chemicals as the main ingredient will be reduced.
UJI EFEKTIVITAS SALEP KULIT BATANG KAPUK RANDU (Ceiba Pentandra) SEBAGAI OBAT ANTI-INFLAMASI Setya Harianto; Aniek Prasetyaningsih; Vinsa Cantya Prakasita
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2799

Abstract

Inflammation is protective response of vascular tissue to various harmful stimuli that characterized by pain, redness, and swelling. Empirically, stem bark of Ceiba pentandra has various chemical compounds that nutritious for health and have potential to be used as anti-inflammatory. This research will provide information the benefit of C. pentandra stem bark especially as anti-inflammatory agents and it’s correlation with the compounds. Maceration method with 70% ethanol was used in extraction and the yield was 75,54%. In phytochemical test, it was identified in crude extract contained flavonoids, tannins, saponins, steroids, β-sitosterol, 1,2-benzendiol, quinic acid, and octadec-9-enoic acid. On extract and ointment products C. pentandra has antioxidants activity with IC50 value of extract was 52,64 ppm and IC50 value of ointment products was 117,64 ppm. This research is included RAL experimental which was carried out on male mice that divided into 5 groups: negative control (ointment base), positive control (Betametasone valerate 0,1%), and 50%, 75%, 100% of C. pentandra ointment. The ointment was applied after the mice were induced by carrageenan, measured with the parameter of skinfold thickness of mice’s back every hour for 6 hours of observation. The result showed C. pentandra stem bark ointments has anti-inflammatory effect which %PI value in the 50%, 75%, 100% were respectively 10,85%; 18,99%; 30,84%.
BILANGAN DOMINASI LOKASI PADA LINE PAN GRAPH DAN MIDDLE PAN GRAPH Fransiskus Fran; Elishabet Yohana; Yundari Yundari
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2928

Abstract

Let G is a simple, connected, and undirected graph. A set D is a subset of V. If every node of V adjacent to at least one node D, then D is a dominating set of the graph G . One of the topics from dominating set is locating dominating set. Locating dominating set is dominating set on condition if every two vertices u,v elements of V-D satisfy the intersection of N(v) and D not equal to the intersection of N(u) and D with u not equal to v. The locating domination number of a graph G is the minimum cardinality of a locating dominating set in a graph G . In this study discussed the locating domination number on line pan graph (L(Tn,1)) and middle pan graph (M(Tn,1)). Locating domination number was obtained by finding dominating set from some graph. Then, does the dominating set meet the condition of locating dominating set? If it meets locating dominating set condition, then we can find the locating domination number of the graphs. In the last procedure, we get pattern location domination number of line pan graph and middle pan graph. The results of the study obtained the locating domination number of (L(Tn,1)) and (M(Tn,1)) consecutive are floor function of (2n/5)+1 and floor function of ((2n+1)/3)+1.
ANALISIS KEMAMPUAN LITERASI SAINS PESERTA DIDIK DALAM PEMBELAJARAN KIMIA MENGGUNAKAN MULTIMEDIA INTERAKTIF BERBASIS BLENDED LEARNING Muhammad Shohibul Ihsan; Siti Wardatul Jannah
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2934

Abstract

This study aims to determine the effect of blended learning-based interactive multimedia on students' scientific literacy skills. This type of research is a quasi-experimental study carried out with a non-equivalent control group design. This research was conducted in one of the high schools in Lombok, Indonesia, involving a control class and an experimental group. Pre-test and post-test were given by researchers to test students' scientific literacy skills in learning chemistry with the subject matter of oxidation-reduction reactions. The validity, reliability, and level of difficulty of the questions were tested using the Rasch Model. The statistical analysis used was the prerequisite test for data analysis and hypothesis testing using the t-test (Independent samples t-test) with the help of SPSS 20 for windows. The results showed that the average N-gain score of the experimental class students' scientific literacy was 78.5 with high criteria, the experimental class N-gain average score was 67.3 with medium criteria. So it can be concluded that the scientific literacy ability of the experimental class is higher than the control class and interactive multimedia based on blended learning affects increasing students' scientific literacy skills.
POTENSI PEMANFAATAN YOUTUBE DALAM PEMBELAJARAN MATEMATIKA Fira Nur Setiyana; Anggun Badu Kusuma
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2945

Abstract

Information technology has a very important role in learning. YouTube is used as a teaching media to help overcome the difficulties of teaching and learning activities during the Covid-19 pandemic period. Providing sources of information in the form of materials and other additional information is very useful so students can understand the material optimally. The purpose of writing this article is to provide information so that it can be used as a source of readers about the potential for youtube utilization in mathematics learning. This research is a literature review that examines ideas, opinions, or findings contained in online articles and journals related to titles and research content so that it provides theoretical information. The results of this study concluded that the potential for youtube utilization in mathematics learning has a positive effect in increasing student learning interest and can motivate students to learn because information on YouTube is very diverse so that it will be useful in the current learning conditions.
EFEKTIVITAS PEMANFAATAN MEDIA PEMBELAJARAN TEKA-TEKI SILANG ONLINE TERHADAP PENINGKATAN MINAT BELAJAR SISWA Desmitha Fritha Sababalat; Leony Sanga Lamsari Purba; Sormin Sormin
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 1 (2021): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i1.2959

Abstract

This research is a quantitative research which aims to determine the effectiveness of the use of online crossword puzzle learning media in increasing student interest in learning. The population in this study were all students of SMA Widya Manggala. The sample in this study was selected using purposive sampling based on topic considerations. The research design was pre non test and post non test experimental control design. The learning interest questionnaire instrument used in this study was validated by expert validators. The results of the normality test for the Shapiro-Wilk approach show that the significance value (Sig.) Is 0.101. If associated with the normality criteria 0.101 is greater than 0.05 (0.101> 0.05). This means that the research data is normally distributed and can be analyzed using parametic statistics, in this case the one-sample t test. The normality test carried out in this study is a hypothesis test using SPSS 24, the significance value (Sig.) Of 0.000 is smaller than 0.05 (0.000 <0.05), so Ho is rejected and Ha is accepted. Hypothesis test results obtained that further gain test is carried out to determine how much increase in student learning outcomes. The result of the gain test is 0.336 with the medium category.

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