Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam最新文献

{"title":"Pengaruh Metode Problem Solving Kuantitatif Berstrategi dalam Perhitungan pH terhadap Hasil Belajar Siswa Kelas XI IPA SMA Negeri 2 Palu","authors":"Harmani M. Potutu","doi":"10.35580/SAINSMAT91141942020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91141942020","url":null,"abstract":"Penelitian ini bertujuan: (1) untuk membuktikan pengaruh metode problem solving kuantitatif berstrategi dalam perhitungan pH Buffer  dan Hidrolisis terhadap hasil belajar siswa SMA Negeri 2 Palu, (2) untuk mendeskripsikan perbedaan hasil belajar siswa setelah dibelajarkan dengan metode Problem Solving berstrategi dalam menyelesaikan soal-soal pH larutan Buffer dan  Hidrolisis dengan  pembelajaran konvensional pada siswa Kelas XI IPA SMA Negeri 2 Palu. Penelitian ini merupakan penelitian yang menggunakan (Desain Randomized Control Group Only), dengan variabel bebas adalah metode Problem Solving Kuantitatif Berstrategi (COAST) dalam  Penyelesaian Soal-Soal pH Buffer dan Hidrolisis, variabel terikat adalah hasil belajar kimia. Populasi  dalam  penelitian  ini  adalah  siswa  kelas XI IPA RSBI SMA Negeri 2 Palu.  Sampel dalam penelitian ini yakni kelas XI IPA 1  dan kelas XI IPA 3. Teknik sampling secara purposive sampling. Pengujian hipotesis menggunakan uji statistik t-tes. Hasil penelitian menunjukkan bahwa, siswa  yang  dibelajarkan melalui penerapan metode Problem Solving Kuantitatif  berstrategi dalam perhitungan pH Buffer dan Hidrolisis  yakni diperoleh  thitung -4.586< ttabel 2.000, dengan taraf signifikansi α = 5%, dalam arti bahwa menolak Ho dan menerima Ha maka disimpulkan bahwa, terdapat   perbedaan  hasil  belajar siswa  yang dibelajarkan melalui metode Problem solving kuantitatifberstrategi dalam perhitungan pH dengan siswa yang dibelajarkan melalui penggunaan metode  konvensional.Kata Kunci:  Problem solving, kuantitatif berstrategi, dan hasil belajar.           The objectives of this research were: (1) to prove the influence of strategic quantitative solving problem method in calculating pH of Buffer and Hydrolisis toward the learning outcome of the eleventh grade students of SMA Negeri 2 Palu, (2) to describe the difference between students’ learning outcome which employed Strategic Solving Problem Method (COAST) in solving Buffer soluble pH exercises and Hydrolisis with conventional learning  to the eleventh grade students (Science Program) of SMA Negeri 2 Palu. This research employed Design Randomized Control Group Only. The population of the research was the eleventh grade students of SMA Negeri 2 Palu. The sample were classes of Science Program 1 and Science Program 3. The sampling done purposively. The hypothesis examining used t-test statistics test. The research result shows that the students’ learning outcome who employed with COAST method, the average were higher than those who did not. Statistically, there was a significant difference, where tcalculated -4.586","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133288666","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}

{"title":"Implementasi Model Pembelajaran Kooperatif Tipe NHT (Numbered-Head-Together) untuk Meningkatkan Hasil Belajar IPA Siswa Kelas IX B SMP Negeri 4 Alla Enrekang","authors":"Sri Murwanto","doi":"10.35580/SAINSMAT91141872020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91141872020","url":null,"abstract":"Hasil observasi di SMP Negeri 4 Alla Kabupaten Enrekang diperoleh fakta yang menunjukkan bahwa dalam proses pembelajaran masih banyak permasalahan di dalamnya yang dapat dilihat dari hasil belajarnya. Permasalahan tersebut diantaranya: guru masih mengajar menggunakan metode konvensional dan hasil belajar siswa yang masih rendah.  Sedangkan dari hasil tanya jawab dengan guru mata pelajaran IPA  rata-rata hasil belajar IPA siswa kelas IX B SMP Negeri 4 Alla Enrekang pada tahun pelajaran 2018/2019 awal semester ganjil masih sangat rendah. Masalah tersebut timbul akibat model mengajar guru yang masih bersifat monoton yaitu, guru lebih aktif dibandingkan siswanya. Hal ini tentu saja akan berdampak pada kebermaknaan belajar yang berujung pada keberhasilan belajar. Penelitian ini merupakan penelitian tindakan kelas (PTK) yang terdiri atas tahapan perencanaan, pelaksanaan tindakan, observasi, dan  refleksi. Subjek penelitian adalah siswa kelas IX B SMP Negeri 4 Alla Enrekang tahun pelajaran 2018/2019. Hasil belajar siswa diukur dengan menggunakan tes esay setiap akhir siklus. Hasil penelitian menunjukkan bahwa implementasi model pembelajaran kooperatif  type NHT (Numbered-Head-Together) dapat meningkatkan hasil belajar IPA Siswa Kelas  IX B SMP Negeri 4 Alla Enrekang.Kata kunci: Model pembelajaran kooperatif, Number-Head-Together, Hasil belajar IPAObservation results at SMP Negeri 4 Alla Enrekang Regency obtained facts that refer to the learning process there are still many problems that can be seen from the results of learning. This issue is issued: the teacher still uses conventional methods and student learning outcomes are still low. While the results of questions and answers with natural science subject teachers the average learning outcomes of students of class IX B of SMP Negeri 4 Alla in the 2018/2019 academic year at the start of the odd semester were still very low. The problem arises because the teacher's teaching model is still monotonous, that is, teachers are more active than their students. This of course will have an impact on meaningful learning that leads to successful learning. This research is a classroom action research (CAR) consisting of planning, implementing, observing, and reflecting. The research subjects were students of class IX B SMP Negeri 4 Alla  Enrekang in the 2018/2019 academic year. Student learning outcomes use essay tests at the end of each cycle. The results showed that the implementation of the NHT (Numbered-Head-Together) type of cooperative learning model could improve the learning outcomes of Science IX Class B students of SMP Negeri 4 Alla Enrekang.Keywords: Cooperative learning model, Number-Head-Together, Science learning outcomes.","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125901544","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}

{"title":"Efektivitas Ekstrak Daun Acalypha Indica dan Tanaman Imperata Cylindrica terhadap Kadar Glukosa Mencit (Mus Musculus L) Hiperglikemia","authors":"A. Mu’nisa, Alimuddin Ali, A. Muflihunna, Balqis Dinarty Jamaluddin, P. MaulydaAwwaliah","doi":"10.35580/SAINSMAT91141892020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91141892020","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui efektivitas ekstrak Acalypha indica  dan tanaman Imperata cylindrica terhadap kadar glukosa mencit (Mus musculus L) hiperglikemia. Penelitian ini menggunakan mencit jantan strain ICR sebanyak 40 ekor yang dibagi dalam 8 kelompok perlakuan, yaitu kelompok mencit normal, kelompok mencit hiperglikemia, dan kelompok mencit dengan pemberian ekstrak methanol Acalypha indica  dan tanaman Imperata cylindrical pada masing-masing dosis 150 dan 250 mg/Kg bb. Hasil penelitian menunjukkan bahwa ekstrak daun Acalypha indicadan tanaman Imperata cylindrica  menunjukkan penurunan kadar glukosa darah mencit sebesar 47-49%. Kesimpulan penelitian ini adalah adanya efektivitas ekstrak methanol Acalypha indica  dan tanaman Imperata cylindrical berpengaruh terhadap penurunan kadar glukosa darah pada mencit hiperglikemia. Kata Kunci: Acalypha Indica,Imperata Cylindrical,Kadar Glukosa  This study aims to determine the effectiveness of the extract of Acalypha indica and plant Imperata cylindrica on glucose levels of mice (Mus musculus L) hyperglycemia. This study used 40 male ICR strain male mice which were divided into 8 treatment groups, namely normal mice group, hyperglycemia mice group, and mice group by giving methanol extract Acalypha indica and Imperata cylindrical plants at each dose of 150 and 250 mg / Kg bb. The results showed that the extract of the leaves of Acalypha indica and Imperata cylindrica plants showed a decrease in blood glucose levels of mice by 47-49%. The conclusion of this research is the effectiveness of the methanol extract of Acalypha indica and the Imperata cylindrical plant influences the decrease in blood glucose levels in hyperglycemia mice.Keywords: Acalypha Indica, Cylindrical Imperata, Glucose Level","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121093513","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}

{"title":"Peningkatan Kemampuan Representasi Matematis melalui Media Lipa’ Sa’be Mandar","authors":"Irfawandi Samad, Herlina Ahmad, Febryanti Febryanti","doi":"10.35580/SAINSMAT91141912020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91141912020","url":null,"abstract":"Penelitian ini bertujuan untuk meningkatkan kemampuan representasi matematis siswa di SMK Mega Link Majenemelalui media pembelajaran lipa’ sa’be Mandar.Jenis penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan selama 2 siklus yang meliputi empat tahapan yaitu perencanaan, pelaksanaan observasi dan evaluasi serta refleksi.Teknik analisis menggunakan analisis statistika deskriptif. Hasil penelitian diperoleh nilai rata-rata kemampuan representasi matematis sebesar 82,65 dengan standar nilai KKM sebesar 70. Sedangkan nilai ketuntasan secara klasikal sebesar 84,21% dengan standar 80%. Aktivitas siswa dan keterlaksanaan guru dalam menerapkan pembelajaran melalui media lipa’ sa’be Mandar berada pada kategori terpenuhi.Berdasarkan hasil penelitian, maka disimpulkan penerapan media pembelajaran lipa’ sa’be Mandar mampu meningkatkan kemampuan representasi matematis siswa SMK Mega Link Majene.Kata kunci: Representasi Matematis, Media Pembelajaran, Lipa’ Sa’be Mandar This research aims to improve the ability of mathematical representation of the students in SMK Mega Link Majene through the media learning Lipa ' Sa'be Mandar. This type of research is a class action study conducted during 2 cycles that includes four phases, namely planning, observation and evaluation and reflection. Analytical techniques using descriptive statistical analysis. The results of the study obtained an average value of the mathematical representation capability of 82,65 with a standard KKM value of 70. Meanwhile, the classifications of the classic value of 84,21% with standard 80%. Student activity is in very active category. The implementation of researchers in applying learning through Media lipa ' sa'be Mandar well done. Based on the results of the research, it was concluded the application of learning Media lipa ' sa'be Mandar able to improve the mathematical representation capability of SMK Mega Link Majene.Keywords: Mathematical Representation, Media Learning, Lipa' Sa'be Mandar","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132454273","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}

{"title":"Kitosan Asetat Cangkang Bekicot (Achatina Fulica) Sebagai Antibakteri Pada Kain Katun","authors":"R. Rismawati, H. Hasri, S. Sudding","doi":"10.35580/SAINSMAT91141902020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91141902020","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui kemampuan kitosan asetat cangkang bekicot sebagai antibakteri pada kain katun berdasarkan pengaruh variasi waktu perendaman terhadap aktivitas pertumbuhan Staphylococcus aureus. Pembuatan kitosan dilakukan dengan tiga tahap yaitu  demineralisasi, deproteinasi dan deasetilasi, kemudian kitosan asetat dibuat dengan melarutkan kitosan dalam larutan asam asetat 2%. Pelapisan kain katun dengan melalui perendaman menggunakan natrium periodat dilanjutkan pelapisan kitosan asetat dengan variasi waktu perendaman 1 menit, 5 menit dan 10 menit. Uji aktivitas antibakteri menggunakan metode tebar. Hasil penelitian menunjukkan bahwa semakin lama waktu perendaman maka pertumbuhan bakteri semakin berkurang. Di simpulkan bahwa kitosan asetat dapat menghambat aktivitas pertumbuhan Staphylococcus aureus. Kata kunci: Kitosan asetat, pelapisan kain, aktivitas antibakteri. This study aims to determine the ability of snail shell chitosan as an antibacterial on cotton fabric based on the effect of variations in soaking time on growth activity of Staphylococcus aureus. Preparation of chitosan be done in three phases demineralization, deproteination and deacetylation, then chitosan acetate is prepared by dissolving chitosan in a 2% acetic acid solution. The coating of cotton fabric through soaking using sodium periodate is followed by the coating of chitosan acetate with a variation of the soaking time of 1 minute, 5 minutes and 10 minutes. Antibacterial activity test using the stocking method. The results showed that the longer the soaking time, the bacterial growth decreases. It was concluded that chitosan acetate can inhibit the growth activity of Staphylococcus aureus. Keywords: Chitosan acetate, fabric coating, antibacterial activity.","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130818036","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}

{"title":"Pengaruh Penambahan PVA terhadap Ukuran Nanopartikel Perak Hasil Sintesis Menggunakan Bioreduktor Ekstrak Daun Sirsak (Annona muricata L.)","authors":"Dewi Rahmadani, Sumiati Side, Suriati Eka Putri","doi":"10.35580/SAINSMAT91141862020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91141862020","url":null,"abstract":"Penelitian ini bertujuan untuk menentukan pengaruh penambahan Polivinil Alkohol (PVA) terhadap ukuran nanopartikel perak hasil sintesis menggunakan bioreduktor ekstrak daun sirsak (Annona muricata L.). Nanopartikel perak dibuat melalui metode bioreduksi, larutan bioreduktor dicampur dengan prekursor AgNO3, tanpa penambahan PVA dan dengan penambahan PVA dengan variasi konsentrasi yang berbeda yaitu 1%; 1,5%; 2%; dan 2,5%. Berdasarkan hasil analisis gugus fungsi ekstrak daun sirsak menggunakan spektrofotometer FT-IR (Fourier Transform Infrared), menunjukkan serapan pada bilangan gelombang 3443 cm-1 yang menunjukkan adanya gugus –OH. Proses pembentukan nanopartikel perak dilihat dengan mengamati serapan UV-Vis. Hasil pengukuran menunjukkan bahwa nilai absorbansi meningkat dengan meningkatnya waktu kontak. Proses pembentukan nanopartikel diamati menggunakan Spektrofotometer UV-Vis melalui serapan UV-Vis. Hasil pengukuran serapan maksimun dari sampel hasil sintesis masing-masing konsentrasi menunjukkan λmax 503.0; 463.1; 436.0; 476.1; 503.1 nm selama dua hari dengan variasi konsentrasi PVA berturut-turut tanpa PVA 1%; 1,5%; 2%; dan 2,5%. Ukuran nanopartikel perak ditentukan menggunakan XRD (X-Ray Diffraction), distribusi rata-rata ukuran nanopartikel perak dengan tanpa penambahan PVA yaitu 30,80-50,25 nm dan kisaran ukuran terkecil nanopartikel perak yaitu 9,90-10,20 nm dengan penambahan PVA 1,5%. Berdasarkan penelitian yang telah dilakukan, maka dapat disimpulkan bahwa penambahan PVA mempengaruhi ukuran nanopartikel perak. Hal ini terjadi karena stabilisator berperan untuk mengontrol ukuran nanopartikel perak.Kata Kunci:  Annona muricata Linn, PVA, reduksi, nanopartikel perak This study aims to determine the effect of adding Polyvinyl Alcohol (PVA) to the size of silver nanoparticle synthesized using bioreductor soursop leaf extract (Annona muricata L.). Silver nanoparticle made through method bioreduction, bioreductor solution was mixed with AgNO3 precursor, without addition of PVA and with the addition of PVA. That the variant of concentrations is 1%; 1.5%; 2%; and 2.5%. Based on the analysis of functional groups of soursop leaf extract using a spectrophotometer FT-IR (Fourier Transform Infrared), showed absorption at wave number 3443 cm-1 which indicate a -OH group.The process of formation of silver nanoparticles seen by UV-Vis absorption. The measurement results shows that the absorbance value increased with increasing contact time. The maximum absorbance measurement result of the samples synthesized each concentration showed λmax 503.0; 463.1; 436.0; 476.1; 503.1 nm for two days with various concentrations without PVA, 1%, 1.5%, 2%, and 2.5%. The size of silver nanoparticle were determined using XRD (X-Ray Diffraction), the average size distribution of silver nanoparticle without the addition of PVA is 30.80-50.25 nm and the smallest size range is 9.90-10.20 nm silver nanoparticle with addition PVA 1.5%. Based on research that has been done, it ","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125710405","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}

{"title":"Peningkatan Kemampuan Matematika Dasar dengan Metode Pembelajaran Langsung dan Tutor Sebaya Mahasiswa Jurusan Matematika FMIPA UNM","authors":"I. Irwan, Sahlan Sidjara, Said Fachry Assagaf","doi":"10.35580/SAINSMAT91199052020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91199052020","url":null,"abstract":"Kemampuan awal memiliki peran yang sangat penting baik dalam mengkonstruksi pengetahuan yang baru dipelajari, maupun mengelaborasi pengetahuan tersebut dengan yang telah dimiliki sebelumnya. Bagi pengajar, pengetahuan tentang kemampuan awal peserta didik dapat menjadi acuan dalam menetapkan titik awal pembelajaran, pendekatan dan teknik mengajar, serta program-program penunjang pembelajaran. Secara umum, pengetahuan awal mahasiswa dapat dipengaruhi oleh beberapa faktor mulai dari latar belakang pendidikan, kondisi ekonomi, lingkungan sosial, hingga kondisi geografis daerah asal. Dalam penerimaan mahasiswa Jurusan Matematika FMIPA UNM beberapa tahun terakhir, pihak jurusan berusaha merangkul calon mahasiswa dengan latar belakang yang cukup beragam. Proses tersebut dilakukan dengan menerapkan tiga jalur penerimaan yakni SNMPTN, SBMPTN, dan Ujian Tulis Lokal dengan juga memfasilitasi calon mahasiswa yang kurang mampu secara finansial melalui jalur Bidikmisi. Perlu diketahui bahwa ketiga sistem penyeleksian tersebut menilai calon mahasiswa tidak hanya dari kemampuan matematikanya saja, melainkan pada kemampuan dasar mereka secara menyeluruh, serta jejak prestasi baik akademik maupun non-akademik selama di SMA. Kata kunci: kemampuan awal, pendampingan langsung, dan tutor sebaya","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"2136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129989555","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}

{"title":"Model SEIR Kecanduan Game Online pada Siswa di SMP Negeri 3 Makassar","authors":"Syafruddin Side, Nurul Azizah Muzakir, D. Pebriani, Syana Nurul Utari","doi":"10.35580/SAINSMAT91199042020","DOIUrl":"https://doi.org/10.35580/SAINSMAT91199042020","url":null,"abstract":"Penelitian ini membahas model matematika SEIR kecanduan game online. Data yang digunakan adalah data primer berupa jumlah siswa SMP Negeri 3 Makassar yang kecanduan game online yang diperoleh dengan cara membagikan angket kepada siswa. Penelitian ini dimulai dari membangun model SEIR kecanduan game online, menentukan titik keseimbangan, menganalisis kestabilan titik keseimbangan, menentukan nilai bilangan reproduksi dasar ( 𝑅0) , melakukan simulasi model menggunakan software Maple, dan menginterpretasikan hasil simulasi. Dalam artikel ini diperoleh model matematika SEIR kecanduan game online; dua titik keseimbangan, yaitu titik keseimbangan bebas kecanduan dan titik keseimbangan kecanduan; kestabilan titik keseimbangan bebas kecanduan dan kecanduan; serta bilangan reproduksi   dasar  𝑅0 = 0,089  yang   menunjukkan   bahwa   tidak   terjadi   penularan kecanduan dari satu individu ke individu lain.Kata kunci: Model Matematika, Kecanduan Game Online, Model SEIR. This research discuss a SEIR mathematical model of online game addiction. The data used is primary data of the number of students in Junior High School 3 Makassar who are addicted to online game which obtained by share the questionnaires to  students. This research starts from constructing a SEIR model of online game addiction, determining the equilibrium point, analysing the stability of equilibrium point, determining  the  basic  reproduction  number  (𝑅0),  doing  a  simulation  of  model  using Maple, and interpreting the result of the simulation. In this paper we obtained a SEIR mathematical model of online game addiction; two equilibrium points which are addiction free and addiction equilibrium point; the stability of addiction free and addiction equilibrium; and the basic reproduction value𝑅0 = 0,089 indicates that there is no transmission of addiction from one individual to another.Keywords: Mathematical Model, Game Online Addiction, SEIR Model","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"961 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127035767","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}

{"title":"Pengaruh Model Pembelajaran Inkuiri Terbimbing terhadap Motivasi dan Keterampilan Berpikir Kritis Peserta Didik Kelas XI IPA SMAN 6 Wajo (Studi Pada Materi Pokok Larutan Penyangga)","authors":"Ayu Ashari, Sumiati Side, S. Sugiarti","doi":"10.35580/SAINSMAT82107242019","DOIUrl":"https://doi.org/10.35580/SAINSMAT82107242019","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahuipengaruh model pembelajaran inkuiri terbimbing terhadap motivasi belajar dan keterampilan berpikir kritis peserta didik pada materi larutan penyangga, serta untuk mengetahui hubungan antara motivasi dengan keterampilan berpikir kritis. Penelitian dilaksanakan di SMAN 6 Wajo semester genap tahun ajaran 2017/2018. Populasi penelitian ini adalah peserta didik kelas XI IPA yang terdiri dari 4 kelas. Sampel penelitian ini adalah peserta didik kelas XI IPA 2 sebagai kelompok eskperimen dan XI IPA 1 sebagai kelompok kontrol. Sampel dipilih dengan teknik simple random sampling. Jenis penelitian adalah quasi experimental dengan desain penelitian pretest posttest control grup design untuk keterampilan berikir kritis dan posttest onlycontrol grup design untuk motivasi belajar. Data yang diperoleh dianalisis secara deskriptif dan inferensial. Uji statistik yang digunakan yaitu uji man wihtney untuk mengetahui pengaruh sedangkan untuk mengetahui hubungan menggunakan uji korelasi spearman. Hasil penelitian yaitu: 1. Ada pengaruh signifikan pembelajaran inkuiri terbimbing terhadap motivasi belajar 2. Ada pengaruh signifikan pembelajaran inkuiri terbimbing terhadap keterampilan berpikir kritis,3. Ada hubungan signifikan antara motivasi belajar dengan keterampilan berpikir kritis.","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129293923","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}

{"title":"Penerapan Pembelajaran Konstruktivis-Novick dengan Media Edutainment terhadap Motivasi dan Pemahaman Konsep Siswa","authors":"Ashari Najib, Muhammad Ali P, N. Nurhidayah","doi":"10.35580/SAINSMAT82107222019","DOIUrl":"https://doi.org/10.35580/SAINSMAT82107222019","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model konstruktivis novick dengan media edutainment terhadap motivasi dan pemahaman konsep siswa. adapun populasi dalam penelitian ini yaitu siswa kelas X MIPA SMA Negeri 1 Wonomulyo sebanyak 180 siswa yang terbagi kedalam 5 kelas, kemudian diambil sampel dengan menggunakan teknik simple random sampling sebanyak 2 kelas yaitu kelas X MIPA 1 sebagai kelas eksperimen dan X MIPA 3 sebagai kelas kontrol. instrumen yang digunakan dalam penelitian ini yaitu tes pemahaman konsep siswa dan angket motivasi belajar siswa. Hasil penelitian yang diperoleh yaitu (1) motivasi belajar matematika siswa yang diajar dengan menggunakan model pembelajaran konstruktivis novick lebih tinggi dibandingkan motivasi belajar siswa yang diajar tanpa model pembelajaran konstruktivis novick dengan media edutainment, dan (2) rata-rata pamahaman konsep siswa yang diajar dengan menggunakan model pembelajaran konstruktivis novick dengan media edutainment lebih besar dibandingkan rata-rata pemahaman konsep siswa yang diajar tanpa menggunakan model pembelajaran konstruktivis novick dengan media edutainment.","PeriodicalId":347044,"journal":{"name":"Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129198646","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}