Media EksaktaPub Date : 2021-05-31DOI: 10.22487/me.v17i1.880
A. Ashar
{"title":"Peningkatan Kemampuan Guru Produktif dalam Melaksanakan Pembelajaran Teaching Factory Melalui Workshop di SMK Negeri 7 Palu","authors":"A. Ashar","doi":"10.22487/me.v17i1.880","DOIUrl":"https://doi.org/10.22487/me.v17i1.880","url":null,"abstract":"The motivation for this study was the low ability of productive teachers to carry out the learning process utilizing the Teaching Factory learning model at SMK Negeri 7 Palu. The teaching learning approach is appropriate for use in SMK since it produces graduates who are competent and ready to work. The purpose of this project is to use a workshop to increase the ability of productive teachers to apply learning using the Teaching Factory approach. The focus of this study is a successful teacher at SMK Negeri 7 Palu, which has a total of 12 students. This school action research was conducted in two cycles, with each cycle going through the planning, implementation, observation, and reflection stages. Data in cycle II increased with an average of 94 (A) and 91.67% completeness percentage. As a result of the training, productive teachers at SMK Negeri 7 Palu will be better able to execute Teaching Factory learning.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130593922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2021-05-31DOI: 10.22487/me.v17i1.814
V. R. Atthacariya, M. Hasbi, I. Hadjar
{"title":"Penerapan Model Pembelajaran Kooperatif Tipe NHT Untuk Meningkatkan Hasil Belajar Siswa pada Materi Aritmetika Sosial","authors":"V. R. Atthacariya, M. Hasbi, I. Hadjar","doi":"10.22487/me.v17i1.814","DOIUrl":"https://doi.org/10.22487/me.v17i1.814","url":null,"abstract":"The purpose of this study was to descript of implementation of cooperative learning model of NHT type on arithmetic social class VII Karuna Dipa Palu. This type of research is classroom action research (CAR). The design of this study discusses the Kemmis and Mc. Taggart consists of four components, namely 1) planning, 2) implementing actions, 3) observation and 4) reflection. The subjects of this study were Grade VII students of Karuna Dipa Palu Middle School who tested 20 students. The study was conducted in two cycles. The results showed that the application of the NHT type of cooperative learning model with phases, namely: 1) delivery of goals and preparation of students, 2) presentation of information, 3) numbering, 4) asking questions, 5) mutual assistance, 6) help or advice and 7) giving awards to arithmetic social materials can improve student learning outcomes in class VII Karuna Dipa Palu.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126963574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2021-05-31DOI: 10.22487/me.v17i1.817
T. H. Indrah, Darsikin Darsikin, I. K. Werdhiana
{"title":"Studi Deskriptif Pemahaman Konsep Rangkaian Listrik Arus Searah Melalui Pembelajaran Laboratorium Riil dan Virtual","authors":"T. H. Indrah, Darsikin Darsikin, I. K. Werdhiana","doi":"10.22487/me.v17i1.817","DOIUrl":"https://doi.org/10.22487/me.v17i1.817","url":null,"abstract":"This study aims to describe the understanding of the concept of direct current electrical circuits through real and virtual laboratory learning. Subjects and respondents to this study as many as 6 students of the Physics Education Study Program class of 2016 who have programmed basic physics courses. The research instrument used is a three-tier multiple choice diagnostic test with DIRECT 1.1 which is a question of multiple choice with the reason in answering the question, each choice of answers accompanied by a choice of confidence level index in answering or CRI. The test instrument used as many as 24 question numbers. The test result data is then analyzed to determine the percentage of scientific concepts, understand alternative concepts, and do not understand concepts both before practicum and after practicum for each group. Based on the results of the analysis of research data, the concept of students before practicum either follow the learning through the real laboratory first then the virtual laboratory, as well as students who follow the learning through the virtual laboratory first then the real laboratory in the categorized very low, while after practicum in high categorization. Understanding the concept in students who have followed the learning using the real laboratory first then the virtual laboratory is relatively better compared to students who follow the learning using a virtual laboratory first then a real laboratory.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127887933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2021-05-31DOI: 10.22487/me.v17i1.818
A. Kusumaningrum, S. Sabang
{"title":"Deskripsi Hasil Belajar Ditinjau Dari Kecenderungan Gaya Belajar Siswa pada Mata Pelajaran Kimia di MAN 2 Kota Palu","authors":"A. Kusumaningrum, S. Sabang","doi":"10.22487/me.v17i1.818","DOIUrl":"https://doi.org/10.22487/me.v17i1.818","url":null,"abstract":"This study aimed to describe learning outcomes of students at MAN 2 Palu in terms of the tendency of learning styles in chemistry. This type of study was descriptive research. Sampling was carried out using the proportional stratified random sampling technique consisted of 93 students. Data collection technique used instruments of learning style questionnaire and learning outcomes test as well as daily test scores of Acid and Base Solutions. The results showed that students of Class XI MIA at MAN 2 Palu had various learning styles. There were 49 students (53%) with a tendency to visual learning styles, 31 students (34%) with an auditorial learning style, and 13 students (13%) with a kinesthetic learning style. Students with visual learning style performed an excellent category of learning outcomes of 25,81% compared to students with an auditorial learning style of 16% and with a kinesthetic learning style of 8,6%.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124445999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2021-05-31DOI: 10.22487/me.v17i1.821
B. Burhan, S. Suherman, P. H. Abram
{"title":"Determination of Sodium (Na) and Calcium (Ca) Levels in Sea water at Posona Village","authors":"B. Burhan, S. Suherman, P. H. Abram","doi":"10.22487/me.v17i1.821","DOIUrl":"https://doi.org/10.22487/me.v17i1.821","url":null,"abstract":"It has been done a study on the determination of sodium (Na) and calcium (Ca) levels in seawater at Posona Village. The aims of this study were to determine the levels of sodium (Na) and calcium (Ca) in seawater in Posona village. The tools used were an atomic absorption spectrophotometer (AAS) and a flame photometer. Seawater samples were taken in the morning and afternoon in 3 distance points: 50 meters, 100 meters, and 150 meters from the edge of the land surface of the seashore. The level of sodium (Na) was measured at wavelengths of 589 nm while calcium (Ca) at a wavelength of 422.7 nm. The results of the study obtained the sodium levels in the morning samples with a distance of 50 m, 100 m, and 150 m amounted of 18.076 mg/L, 18.395 mg/L, and 18.715 mg/L. While the afternoon samples for the sodium (Na) levels was 18.475 mg/L, 18.742 mg/L, and 18.249 mg/L, respectively. The results of the analysis of calcium levels in the morning samples were 8.431 mg/L, 8.8 mg/L, and 7.661 mg/L, whereas in the afternoon for calcium (Ca) levels were 9.415 mg/L, 9.231 mg/L, and 7.692 mg L, respectively.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124607447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2020-11-30DOI: 10.22487/me.v16i2.744
Firlia Firlia, S. Hastuti
{"title":"DETERMINATION OF TOTAL FLAVONOID LEVELS ON ALPUKAT FRUIT SKIN (PERSEA AMERICANA MILL.)","authors":"Firlia Firlia, S. Hastuti","doi":"10.22487/me.v16i2.744","DOIUrl":"https://doi.org/10.22487/me.v16i2.744","url":null,"abstract":"Avocados (Persea americana Mill) are fruits that originally from Mexico and Central America. It has the characteristics of green flesh on the bottom of the skin and yellowing toward the seeds with a texture that is rather soft when it is ripe. Skin color varies, some are green because of chlorophyll or black content due to anthocyanin pigments. This study aimed to determine the total levels of flavonoids in the skin of avocados that were green and black. Determination of total flavonoid levels used a UV- Vis spectrophotometer. The results showed that an analysis of water content was 5.306% for green avocado skin and 7.327% for black avocado skin. The analysis of total flavonoid levels at a wavelength of 437 nm obtained respectively, the average yield was 54,950 mg/100g for green avocado skin and 29,519 mg/100g for black avocado skin. The results of this study are expected to be able to attract the interest of the community to cultivate green and black avocado plants. especially in the area of Central Sulawesi.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131159796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2020-11-30DOI: 10.22487/me.v16i2.726
Liska Fajaryani, Sahrul Saehana, I. Darmadi
{"title":"PENGARUH PENGGUNAAN ALAT SEDERHANA KONVERSI ENERGI MEKANIK DALAM MODEL PEMBELAJARAN POE TERHADAP HASIL BELAJAR SISWA PADA MATERI ENERGI KELAS VII SMPN 15 SIGI","authors":"Liska Fajaryani, Sahrul Saehana, I. Darmadi","doi":"10.22487/me.v16i2.726","DOIUrl":"https://doi.org/10.22487/me.v16i2.726","url":null,"abstract":"Penelitian ini dilakukan dengan tujuan untuk melihat pengaruh penggunaan alat sederhana dalam model pembelajaran Predict, Observe, Explain (POE) menggunakan metode eksperimen dan model pembelajaran POE tanpa metode eksperimen pada siswa kelas VII di SMP Negeri 15 Sigi. Jenis penelitian ini merupakan eksperimen kuasi dengan desain the eqivalent pretest-posttest group design. Populasi penelitian ini adalah seluruh siswa kelas VII SMP Negeri 15 Sigi. Teknik Sampling yang digunakan pada penelitian ini adalah Purposive Sampling dengan sampel penelitian adalah kelas VII B sebagai kelompok eksperimen dan kela VII A sebagai kelompok kontrol. Instrumen hasil belajar siswa berupa tes pilihan ganda yang telah divalidkan melalui validitas kontruksi. Tes hasil belajar siswa yang diperoleh menunjukkan bahwa skor rata-rata kelompok eksperimen sebesar 14,91. Dimana hasil ini lebih tinggi dari pada kelompok kontrol yaitu 11,20. Uji hipotesis Uji-t (dua pihak), diperoleh = 3,18 dan = 2,00 pada taraf nyata α = 0,05. Ini berarti bahwa nilai berada diluar daerah penerimaan . Disimpulkan bahwa terdapat pengaruh hasil belajar siswa yang menggunakan alat sederhana dalam model pembelajaran POE menggunakan metode eksperimen dibandingkan hasil belajar siswa yang menggunakan model pembelajaran POE tanpa metode eksperimen pada siswa kelas VII SMP Negeri 15 Sigi.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115473673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2020-11-30DOI: 10.22487/me.v16i2.741
Khusnul Khotima, Tri Santoso
{"title":"PEMANFAATAN PEKTIN KULIT NANGKA (ARTOCARPUS HETEROPHYLLUS) SEBAGAI ADSORBEN LOGAM CU (II)","authors":"Khusnul Khotima, Tri Santoso","doi":"10.22487/me.v16i2.741","DOIUrl":"https://doi.org/10.22487/me.v16i2.741","url":null,"abstract":"One method to reduce levels of heavy metals from the waters is adsorption method by utilizing organic waste such as jackfruit peels. This research aims to utilize jackfruit peels pectin (Artocarpus Heterophyllus) as Cu (II) metal adsorbent the first to extract with 5% citric acid solvent for 120 minutes and characterize pectin from jackfruit peels as well measure the optimum contact time required pectin to adsorb Cu (II) metal with variations in time for 1, 2, 3 hours. The results showed the characterization pectin from jackfruit peels obtained was a yield of 9.9%, ash content 4.04%, moisture content 8%, equivalent weight 641.026 mg, methoxyl content 6.82%, galacturonic acid 45.76%, and the optimum contact time required pectin to adsorb Cu (II) metal, which is 2 hours with the precentage of absorption is 82,80%.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125012448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2020-11-30DOI: 10.22487/me.v16i2.736
Filda Mohammad Said, M. Ali, I. K. Werdhiana
{"title":"PENGARUH MODEL PEMBELAJARAN INKUIRI TERBIMBING MENGGUNAKAN MEDIA SEDERHANA TERHADAP HASIL BELAJAR IPA FISIKA PADA SISWA KELAS VIII SMP NEGERI 3 PALU","authors":"Filda Mohammad Said, M. Ali, I. K. Werdhiana","doi":"10.22487/me.v16i2.736","DOIUrl":"https://doi.org/10.22487/me.v16i2.736","url":null,"abstract":"Model pembelajaran inkuiri terbimbing merupakan pembelajaran yang melibatkan siswa dalam menentukan suatu konsep atau materi pelajaran yang sedang dipelajari. Keterlibatan siswa dalam proses pembelajaran tersebut dapat berupa mengajukan berbagai pertanyaan, menghimpun informasi, dan melakukan penyelidikan. Pembelajaran langsung (DI) merupakan suatu model pembelajaran yang terdiri dari penjelasan guru mengenai konsep atau keterampilan baru terhadap siswa. Penelitian ini dilakukan dengan tujuan mengetahui pengaruh model pembelajaran inkuiri terbimbing menggunakan media sederhana terhadap hasil belajar IPA fisika pada siswa SMP Negeri 3 Palu. Jenis penelitian ini merupakan eksperimen kuasi dengan desain the non-equivalent pretest-posttest. Populasi penelitian adalah siswa kelas VIII SMP Negeri 3 Palu. Teknik Sampling yang digunakan dalam penelitian ini adalah purposive sampling dengan sampel penelitian adalah kelas VIII A sebagai kelompok eksperimen dan kelas VIII B sebagai kelompok kontrol. Instrumen hasil belajar IPA fisika berupa tes pilihan ganda yang telah divalidasi melalui validitas konstruksi. Hasil uji t dua pihak dengan dk = 60 dan taraf signifikansi a = 0,05 diperoleh nilai thitung = 3,92 dan nilai ini lebih besar dari ttabel = 2,00. Hal ini berarti, nilai thitung berada di luar daerah penerimaan H0. Dengan demikian H0 ditolak dan H1 diterima, dan dapat disimpulkan bahwa ada pengaruh model pembelajaran Inkuiri terbimbing menggunakan media sederhana terhadap hasil belajar IPA fisika pada siswa SMP Negeri 3 Palu.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129975241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Media EksaktaPub Date : 2020-11-30DOI: 10.22487/me.v16i2.745
Denliana H.N. Pakaya, P. H. Abram
{"title":"POLYMERIZATION OF EUGENOL USING A CONCENTRATED NITRIC ACID (HNO3) CATALYST AND MEDIA OF ACETIC ACID (CH3COOH)","authors":"Denliana H.N. Pakaya, P. H. Abram","doi":"10.22487/me.v16i2.745","DOIUrl":"https://doi.org/10.22487/me.v16i2.745","url":null,"abstract":"Eugenol is a paleyellow oily liquid which can be extracted from essential oils such as clove and cinnamon oils. This study aimed to modify eugenol and to reduce environmental pollution caused by polymers by utilizing natural materials through polymerization of eugenol with concentrated nitric acid (HNO3) and media of acetic acid (CH3COOH). Various of acetic acid media used were 5%, 25%, and 50%. The result of polieugenol was blackish brown, in the form of shiny gels, smelling of cloves, and soluble in ethanol, slightly soluble in chloroform and insoluble in benzene and water. The product polieugenol was washed with aquades. The yields before washing were 142.75%, 141.25% and 138.75%, and the yield after washing were 88.265%, 88.397% and 87.248%. The Fourier Transform InfraRed (FT-IR) spectrophotometer results showed that the polymerization did not occur perfectly showing by absorption peaks of CH=CH2 and C = C groups at 995.27 and 1635.89 cm-1.","PeriodicalId":279720,"journal":{"name":"Media Eksakta","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127031979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}