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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 19 Documents
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Search results for , issue "Vol 6 No 2 (2022): Januari" : 19 Documents clear
STUDI KOMPARASI KANDUNGAN TIMBAL PADA BUAH APEL (Malus domestica) VARIETAS FUJI DARI PASAR TRADISONAL DAN SWALAYAN DI YOGYAKARTA Minarsih Maria Sambo; Guruh Prihatmo; Dwi Aditiyarini
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3134

Abstract

This study aims to determine and compare the concentration of Pb in Fuji apples from traditional markets and supermarkets. Samples were obtained from the outer Demangan market, the outside and inside Kranggan market, Superindo and Mirota Kampus. Samples were extracted using aqua regia HCl: HNO3 (3:1, v/v). Analysis of Pb concentration using Atomic Absorption Spectrophotometer (AAS). Data processing using SPSS with ANOVA test to determine the ratio of Pb concentration from each location. The average concentration of Pb in Fuji apple samples was obtained from the Demangan outside market (0.213 mg/kg), Kranggan outside market (0.208 mg/kg), Kranggan inside market (0.162 mg/kg), Superindo (0.147 mg/kg) and Mirota Campus (0.168 mg/kg). Based on the BPOM quality standard (2018), the concentration of lead in the outer Demangan market and the outside Kranggan market has passed the quality standard. As for the quality standard of SNI (2009) all concentrations are still within safe limits. So from the results of this study it can be said that the sales location is important to the lead content in Fuji apples, especially those sold near the highway, this is indicated by the highest lead concentration sourced from open sales locations and close to the highway, that is Kranggan outside market and the Demangan outside market. The treatment of washing fuji apples also showed a decrease in lead levels in fuji apples.
P IDENTIFIKASI KESIAPAN DAN KESULITAN GURU MATEMATIKA DALAM PELAKSANAAN KURIKULUM 2013 DI MASA PANDEMI COVID 19 jitu Halomoan lumbantoruan
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3297

Abstract

The research method used is descriptive qualitative. Collection of primary data and secondary data. Analysis with data reduction, presentation, conclusion and verification. Research at SMA Yadika 11, SMK 4 and SMA 7 Bekasi. The results of the analysis, 1) 95% of the online learning process is still from curriculum 13, the school facilitates teachers. However, when the implementation was not in line with expectations, this was because the material provided was not prepared with the standard of the initial ability of students, the books provided were not strong enough to build concepts, educators had difficulty writing symbols, student responses to professional competence were 79%, 70% of participants students assess that teachers do not have teaching materials and modules used as learning aids, observing 4 teacher materials have difficulty explaining related to writing symbols and proof. 2) The form of readiness by providing textbooks as the main source, however, books with cognitive dimensions. Lots and not hot books, this is not in line with curriculum 13. 3) The assessment method is prepared by the teacher, however, the assessment method is not given and the material tested is more difficult than what is taught and 60% disagrees with the teacher's assessment method.
PENGARUH ASAM SALISILAT TERHADAP KANDUNGAN FLAVONOID PADA KULTUR KALUS GINSENG JAWA (Talinum paniculatum (Jacq.) Gaertn.) Matthew Linardi; Ratih Restiani; Dwi Aditiyarini
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3331

Abstract

Javanese ginseng (Talinum paniculatum) is a plant that is used as raw material in traditional medicine because it contains flavonoid as one of it’s secondary metabolites. Increasing the flavonoid content in Talinum paniculatum can be done by applying elicitation to in vitro culture. Salicylic acid is an abiotic elicitor that is often used in elicitation because it can increase the production of secondary metabolites. The aim of this study was to determine the effect of salicylic acid concentration and elicitation time on callus biomass and flavonoid content in Talinum paniculatum callus culture. Talinum paniculatum callus production was carried out on MS medium with a combination of 2 mg/L 2-4,D and 3 mg/L kinetin. Elicitation was carried out on callus that had entered the stationary phase on the interaction of variations in the concentration of salicylic acid concentrations of 5 ppm, 10 ppm, 15 ppm, and 20 ppm and elicitation times were 2 days, 4 days, and 6 days. Each variations were replicated three times. The callus was dried and extracted and then the flavonoids were identified and measured semi-quantitatively using thin layer chromatography (TLC). The callus biomass elicited by varying the concentration of salicylic acid and elicitation time (0.052 – 0.067) was not significantly different from the control (0.067). The most optimal concentration and elicitation time were found at 20 ppm salicylic acid concentration and 2 days elicitation time with the largest flavonoid stain area (1.570 cm2), color intensity 3, and Rf value similar to control (0.5).
EFEKTIVITAS PENGGUNAAN VIRTUAL LABORATORY TERHADAP PENINGKATAN HASIL BELAJAR SISWA SMA DI ERA NEW NORMAL Chyntia Clarinda; Novalina; Mariana Gu; Faradiba Faradiba
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3339

Abstract

Technological developments present many choices of learning media. The learning media that is the prima donna during the pandemic is a virtual laboratory. Virtual laboratories are used by teachers as a substitute for face-to-face practicum activities. There are many kinds of virtual laboratory applications that have been spread, one of which is the "PhET" simulation application. The purpose of this study was to determine the impact of using the PhET simulation application on improving student learning outcomes. This research was conducted at SMAN 54 Jakarta. The method used in this research is descriptive quantitative with the type of pre-experimental research. Data collection techniques used in this study were questionnaires and tests. Questionnaires and tests were used to obtain data on student learning outcomes. Data analysis used t test and N-gain test. The t-test was used to see if there was an effect of using a virtual laboratory on student learning outcomes. While the N-Gain test is to see how effective the use of virtual laboratories is to improve learning outcomes. The results of this study indicate an increase in student learning outcomes after using a virtual laboratory application.
PENGARUH KONSENTRASI EKSTRAK BIJI DAN KULIT BUAH PINANG (Areca catechu L.) TERHADAP MORTALITAS LARVA NYAMUK Aedes aegypti Anjela Noya; Djoko Rahardjo; Vinsa Cantya Prakasita
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3429

Abstract

The purpose of this study is to determine the potential extract of areca nut (Areca catechu L.) seeds, skin and the combination of the two extracts in killing the Aedes aegypti larvae. This study used a Completely Randomized Design in the seed extract test with a concentration of 16000, 17000, 18000, 19000 and 20000 ppm and skin extract with concentrations of 7000, 8000, 9000, 10000 and 11000 ppm. The factorial design was used in the combined extract of 0:100; 25:75; 50:50; 75:25 and 100:0. Each treatment used 4 replications. Data were analyzed by ANOVA and then continued by Tukey, LSD and Duncan tests. The last, data were analyzed by probit analysis to determine LC50 and LC90. The result indicates that areca nut seed and skin contain flavonoid, alkaloid, palmitic acid, phenols, terpenoids and steroids which are toxic. The killing power of seed extract was 64-97% (24hours) and 100% in all treatments (48hours). Skin extract was 52-88% (24hours) and 58-93% (48hours), while the combination extract was 55 -93% (24hours) and 95-100% (48hours). Concentration of 19000 ppm of seed extract with 95% mortality at 24 hours was effective when compared to the WHO standard (2005), while the skin extract had a lower LC value than the other two extracts.
APLIKASI METODE FUZZY CLUSTERING MEANS UNTUK DATA TRENDING KASUS VAKSIN CORONA PADA JEJARING SOSIAL TWITTER Damaris Lalang; Mariam Lanmay
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3447

Abstract

Prevention of the spread of the 2019 corona virus disease by vaccination has become a controversy in a long conversation on Twitter social media. One way to classify these conversations is to use fuzzy clustering means. Fuzzy clustering means is used to group data into several classes with a high degree of similarity, therefore in the study entitled "the application of the fuzzy clustering means method for trending data on corona vaccine cases on the Twitter social network" aims to apply fuzzy clustering means and determine the trending topic of vaccine cases corona. The data is taken and processed using the r studio program with documentation techniques. In the process of implementing the fuzzy clustering means, it was successfully applied by obtaining the optimal value for the validity of the fuzzy silhouette index x 0.520397533360261 and being able to classify the data in two clusters and display the words vaccine, covid and vaccination as the most talked about words in the case of corona virus disease 2019 on twitter.
MEMBANGUN KETERAMPILAN PROSES SAINS MAHASISWA PADA MASA PANDEMI MELALUI CHEMISTRY HOME EXPERIMENTS Munasprianto Ramli; Buchori Muslim; Anggit Refo Kurniawan
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3455

Abstract

The Covid-19 pandemic that has occurred since the beginning of 2020 has caused chemistry practicum in the laboratory, which is an important part of learning chemistry, to not be carried out during the covid 19 pandemic. The purpose of this study is to analyze how the Chemistry Home Experiment builds science process skills during the pandemic. This research method is a mix method with a convergent design approach. The participants of this research were 96 first year students of chemistry education at UIN Syarif Hidayaullah. The instrument used in this study was an observation sheet consisting of 20 indicators from aspects of science process skills and documentation in the form of practicum videos and practicum reports. Analysis of the data using content analysis quantitatively and qualitatively. The results showed that aspects of science process skills that received very good predicates were aspects of observing/observing, aspects of grouping/classifying, aspects of using tools and materials, aspects of applying concepts and aspects of communicating. Aspects of interpreting and aspects of predicting received good predicates. As for the aspect that gets the predicate less is the hypothesis. Based on these results. From these studies and observations, it can be concluded that the Chemistry Home Experiment can build students' science process skills in learning basic chemistry during the pandemic.
PENGARUH APLIKASI GEOGEBRA TERHADAP HASIL BELAJAR MAHASISWA PADA MATERI GEOMETRI TRANSFORMASI Wiwin Apriani; Rahmi Hayati
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3456

Abstract

This study aims to determine whether there are differences in the learning outcomes of mathematics education students at a university in Aceh who are taught using geogebra applications with students who are taught using conventional learning methods in the transformation geometry course. This research uses a quantitative approach with a true experimental type of research. The population in this study were all students of mathematics education at Almuslim University. While the samples used were students who took the Transformation Geometry course. The sample used in this study amounted to 60 people. Furthermore, the students were divided into 2 classes, namely 20 people into the experimental class and 20 people into the control class. In the experimental class, learning uses the geogebra application and in the control class using conventional learning. The results obtained show the difference in the average learning outcomes in the two classes. The difference in learning outcomes of the two classes can be seen by using the t-test independent sample test. These results indicate that the value of Sig. (2 Tailed) < 5 % . As for the value of Sig. (2 Tailed) of 0.000. This means that H0 is rejected. Thus, it can be concluded that the average student learning outcomes on the transformation geometry material in the control class are included in the less criteria. While the average student learning outcomes on the material of transformation geometry using the geogebra application are included in good criteria.
TINGKAT PENGETAHUAN KESEHATAN GIGI TERHADAP KEJADIAN KARIES GIGI PADA MAHASISWA FAKULTAS KEDOKTERAN UNIVERSITAS KRISTEN INDONESIA ANGKATAN Rahayu Yekti Maryanto; Donny Hiskia Turnip
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3546

Abstract

Dental caries is the most common infectious disease in the oral cavity and is still a dental health problem in Indonesia. Lack of knowledge about dental and oral health can increase the risk of dental caries. This study aims to analyze the level of dental health knowledge on the incidence of dental caries in students of the Faculty of Medicine, Christian University of Indonesia Class of 2019. This study is a cross-sectional design study conducted from January to December 2021 with a total of 138 respondents. Knowledge of oral health and the incidence of dental caries was assessed using a questionnaire. The results of the study: there is a distribution of students who have a good level of knowledge of dental and oral health as many as 115 people (83.3%) and students who experience dental caries events are 99 people (71.7%). Bivariate analysis of Spearman correlation test and obtained p value = 0.462 > alpha value (0.05). The conclusion is that there is no relationship between knowledge of dental health and the incidence of dental caries in students of the Faculty of Medicine, Indonesian Christian University Class of 2019. Better knowledge about dental and oral health can change a better attitude in preventing dental caries. Many factors can cause dental caries that is a lifestyle of consuming sweet foods, the habit of brushing teeth after eating and before going to bed and the tooth structure is different for each person.
GHOSTING DALAM PEMBELAJARAN ONLINE: SEBUAH PERSPEKTIF DARI SISI TUTOR Dyah Aniza Kismiati; Ucu Rahayu; Mery Novianti; Zakirman; Yos Sudarso
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 6 No 2 (2022): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v6i2.3592

Abstract

The Covid-19 pandemic caused many significant changes in the learning system. By the implementation of online learning policies, it raises its own problematics until the emergence of ghosting phenomena in learning. The ghosting phenomenon is seen as the inactivity of students in online learning. This study is a type of quantitative descriptive research using survey method with a sample of 1,974 tutors at the Open University. The data was collected through questionnaire instruments shared online with tutors. The questionnaire instrument is an open question and there is also a likert scale. As a support, also conducted interviews with several tutors. The sampling technique used is a random sampling technique. The results of this study inform that 94.43% of tutors have experienced the phenomenon of ghosting carried out by students while 5.57% stated that there is no ghosting phenomenon in online learning. Of the 94.43% who stated the occurrence of the ghosting phenomenon, 31.05% of them think that ghosting is a phenomenon of student inactivity in online learning (not responding when called and invited to discuss), 20.62% of other tutors believe the same thing even admits that the ghosting phenomenon is common in online learning, other tutors also revealed some things related to ghosting in online learning. Thus, learning strategies are needed to overcome the phenomenon of ghosting in online learning.

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