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Diana Eka Pratiwi
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SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Published by Universitas Negeri Makassar
ISSN : 20866755     EISSN : 25795686     DOI : https://doi.org/10.35580/sainsmat
Core Subject :
The objective of this journal is to publish original, fully peer-reviewed articles on a variety of topics and research methods in sciences, mathematics, statistics, education, and applied science. The journal welcomes articles that address common issues in mathematics, sciences, statistics, education, applied science, and cross-curricular dimensions more widely.
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Articles 282 Documents
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The Effect of Guided Inquiry Learning Model on Motivation and Critical Thinking Skills of Class XI Science Students of SMAN 6 Wajo (Study on the Subject of Buffer Solution) Ayu Ashari Ashari; Sumiati Side; Sugiarti Sugiarti
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 8 No. 2 (2019): Volume 8 Nomor 2 (September 2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

This study aims to determine the effect of guided inquiry learning model on learning motivation and critical thinking skills of learners on the material of buffer solution, and to know the correlation between motivation with critical thinking skills. The research was conducted in SMAN 6 Wajo even semester of academic year 2017/2018. The population of this study are students of class XI IPA consisting of four classes. The sample of this research is the students of class XI IPA 2 as the experimental group and XI IPA 1 as the control group. The sample was chosen by simple random sampling technique. The research type is quasi experimental with pretest research design posttest control group design for critical thinking skill and posttest only control group design for learning motivation. The data obtained were analyzed descriptive and inferential. The statistical test used is man withney test to know the influence while to know the relationship using spearman correlation test. The result research : 1. There is significant effect of guided inquiry learning model toward motivation, 2. There is significant effect of guided inquiry learning model toward critical thinking skill, and 3. There is a significant correlation between learning motivati on and critical thinking skills.
Faktor-Faktor Yang Mempengaruhi Penguasaan Aspek Bilangan pada Guru SD Negeri di Kecamatan Pangkajene Kabupaten Pangkep Samsiah
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 5 No. 1 (2016): Volume 5 Nomor 1 (Maret 2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

This research belongs to survey research that is descriptive-correlative and explorative with populationof all teachers of SD Negeri in Pangkajene, Pangkep. Sampling was done with a sample of considerations. Data obtained by using the instrument in the form of questionnaire and test about numerical aspect. The data were processed using descriptive and inferential statistical analysis.The result of descriptiveanalysis shows that the mastery of numerical aspect in teacher of elementary school is in lowcategory. The results of inferentialanalysis indicate that the level of education, age and sex level simultaneously affect the mastery of numerical aspect in elementary school teachers in Pangkajene, Pangkep. The results oftheexplorativeresearch indicate that other factors affecting the mastery of the numerical aspect are education and training, educational background, teaching level shift, mathematics guide role, motivation and incentive for achieving teachers.
Efektivitas Pembelajaran Kooperatif Tipe NHT dalam Pembelajaran Matematika di SMA Firdaus
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 5 No. 1 (2016): Volume 5 Nomor 1 (Maret 2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

This study is a quasi-experimentresearch which aims at investigating the effectiveness of cooperative learning of NHT type in Mathematics subject of matrix lesson which focuses on four aspects (1) students’ activities, (2) teacher’s skill in managing the lesson, (3) students’ response, and (4) students’ learning result, and the significant difference between pretest and posttest scores. This research was conducted at SMA Negeri 2 Watampone. The population was the third-gradestudents of Science classintheoddsemester of academic year 2008/2009. The sample was taken through random sampling technique with one group pretest-posttest research design. The study results showed that (1) the students’ activities during the teaching-learning process were effective, (2) the teachers’ skill in managing the lesson was classified in good category, (3) the students’ response toward the lesson were positive, and (4) the students’ learning results have achieved the learning completeness. Inferential statistics analysis showed that there issignificantdifference between the pretest and posttest in cooperative learning of NHT type for the matrix material. Based on the study result it was concluded that the cooperative learning of NHT type is effective to be applied inmathematics subject of matrixmaterial to the third-gradestudents of science class at SMA Negeri 2 Watampone.
Komparasi Pemahaman Konsep Bangun Datar Siswa Antara Yang Diajar Dengan Model Pembelajaran Advance Organizer Dengan Peta Konsep Dan Model Pembelajaran Yang MengadopsiTeoriVan Hiele Pada Kelas VII SMPN 2 Sinjai Timur Edi Syukri; Abdul Rahman; Ilham Minggi
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 5 No. 1 (2016): Volume 5 Nomor 1 (Maret 2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

The type of this research is experimental research that aims to: (1) know the learning outcomes, activities, and responses of students to advance organizer learning model with concept maps and learning models that adopt Van Hiele theory on the subject of wake up, especially quadrilateral class VII SMPN 2 Sinjai East, (2) to know how to understand the concept of students' wake up between those taught by advance organizer learning model with concept map and learning model adopting Van Hiele theory. The population in this study were all students of class VII of SMPN 2 Sinjai Timur and the sample consisted of two classes namely class VII-A and class VII-C, both asanexperimentalclass wasselected using purposive random sampling technique. The data collected consisted of data on student learning outcomes, student activity data in learning, and student response data on the device and learning. The results showed that the score of students' mathematics learning outcomes in experimental class 1 with meanof 20,36 and standard deviation 2,164 reach classical completeness equal to 89,29%, and student activity in learning is intheactivecategory and student response to deviceand its learning is positive. In general, it is concluded that advanced organizer learning model with concept map to be applied inclass VII SMPN 2 Sinjai Timur with quite effectivecategory. Scoreof student learning outcomes in experiment class 2 with meanof 20,63 and standard deviation 2,589 reach classical completeness equal to 88,89% and student activity in learning is inactivecategory and student response to deviceand its learning is positive. It is generally concluded that the learning model adopting Van Hiele's theory to be applied in class VII SMPN 2 Sinjai Timur is quite effective. The result of hypothesis test at significance level α = 0,05 with t-test shows that there is no difference in understanding the concept of students' wake up between the taught with advanceorganizer learning model with concept map and learning model adopting Van Hiele theory.
TheEffectiveness of Anti Inflation Mangoes Leaves (Mangifera Indica) Against Burns Degrees Two Nurul Annisa; Nur Azizah Amaliah Amaliah; Panji Mujahid Al Haq Al Haq; Arifah Novia Arifin Arifin
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 8 No. 1 (2019): Volume 8 Nomor 1 (Maret 2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

A lot of people generally utilize mango as the fruit to obtain nutrients for example vitamin consumption. C, but only to the extent that while other parts of the mango thrown away and become waste, such as leaves of mango. Mango leaves nutritional contributions to health, such as flavonoids, phenols, tannins, terpenoids and quinones can function as an anti-inflammatory. The use of anti-inflammatory commonly seen in the treatment of burns, but this time using synthetic burn treatment have harmful side effects that need their anti-inflammatory drugs naturally burns to reduce side effects. The research aimed to find out how mango leaves can be used as anti-inflammatory healing of second-degree burns, as well as the effectiveness of mango leaves as an anti- inflammatory against second-degree burns. This type of research is true experimental research with a post test experimental and control groups. The study was conducted over three months held at the Laboratory of Biology, University of Makassar. Data analysis technique in this research is the analysis of quantitative data. The results achieved are obtained extracts of mango leaves and phytochemical screening test found their secondary metabolites that can be used as an anti-inflammatory. Test the effectiveness of anti-inflammatory and closing degree burns successful visits of the treated mice had no significant difference with the results of the positive control. Data analysis technique in this research is the analysis of quantitative data. The results achieved are obtained extracts of mango leaves and phytochemical screening test found their secondary metabolites that can be used as an anti-inflammatory. Test the effectiveness of anti-inflammatory and closing degree burns successful visits of the treated mice had no significant difference with the results of the positive control. Data analysis technique in this research is the analysis of quantitative data. The results achieved are obtained extracts of mango leaves and phytochemical screening test found their secondary metabolites that can be used as an anti-inflammatory. Test the effectiveness of anti-inflammatory and closing degree burns successful visits of the treated mice had no significant difference with the results of the positive control.
Sintesis Nanosilika Pasir Pantai Takalar Menggunakan Metode Hidrotermal Hasri Hasri; Fauziah Fauziah; Satria Putra Jaya Negara
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 10 No. 2 (2021): Volume 10 Nomor 2 (September 2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

anosilica synthesis requires materials that contain a lot of silica compounds. Research shows that beach sand is the largest source of silica. Research on the synthesis of nanosilica from Takalar beach sand using the hydrothermal method has been carried out. There are several methods that can be used for the synthesis of nanosilica, including coprecipitation, sol gel and hydrothermal. The method with the easiest and the least costly is the hydrothermal method. The results showed that the nanosilica produced had a silica (SiO2) content of 59.82. 45.07 nm -48.68 nm
Peta Konsep Prinsip Relevansi dalam Arah Pengembangan Kurikulum Matematika: Kajian Perspektif Pengembangan Kurikulum Muh. Fitrah
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 4 No. 1 (2015): Volume 4 Nomor 1 (Maret 2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Artikel ini bertujuan untuk menjelaskan peta konsep prinsip relevansi arah pengembangan kurikulum matematika. Prinsip relevansi adalah prinsip kesesuaian. Relevansi internal bahwa setiap kurikulum harus memiliki keserasian antara komponen komponennya, yaitu keserasian antara tujuan yang harus dicapai, isi, materi atau pengalaman belajar yang harus dimiliki peserta didik, strategi atau metode yang digunakan serta alat penilaian untuk melihat ketercapaian tujuan yang diharapkan. Pengembangan peta konsep kurikulum menengok pada prinsip pengembangan kurikulum yang harus memiliki prinsip relevansi baik eksternal maupun internal, peta konsep kurikulum dapat dilihat untuk meningkatkan modul, integrasi dengan teks, dan urutan topik dalam pengembangan kurikulum, peta konsep menyediakan kendaraan untuk memfasilitasi perspektif bersama.
Hubungan Antara Self Regulated Learning dengan Self Efficacy Mahasiswa melalui Strategi Blended Learning pada Perkuliahan Biologi Dasar Muhiddin Palennari; Firdaus Daud; Nurhayati B
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 10 No. 2 (2021): Volume 10 Nomor 2 (September 2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Self-regulated learning is an independence in learning that must be promoted in order that students do not only rely solely on the information provided by lecturers. While, Self efficacy is a belief and hope regarding the ability of individuals to deal with their duties. Both can can be promoted by implementing appropriate learning strategies. One of the learnings strategies that can be implemented is the blended learning strategy. Accordingly, this research is conducted to assess the relationship between self regulated learning and student self-efficacy in the Department of Biology. The population in this study was all students of the Department of Biology in 2019 consisting of 158 people. The sample was taken by simple random sampling consisting of 39 people. The instrument used was a self regulated learning questionnaire consisting of 30 items, and a self-efficacy questionnaire consisting of 18 items. The research data was analyzed product moment correlation. The results obtained by value r = 0.619 with a significance value of p = 0.000 smaller than α = 0.05. Thus,it was concluded there was a relationship between self regulated learning and student self-efficacy in Basic Biology Class. From the results of the study, students' self-regulated learning and self-efficacy should be developed in learning.
Penerapan Persamaan Navier-Stokes Untuk Kasus Aliran Fluida Laminer Pada Pipa Tidak Horizontal Vistarani Arini Tiwow; Jaruddin Daud Malago
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 4 No. 1 (2015): Volume 4 Nomor 1 (Maret 2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Persamaan Navier-Stokes memiliki bentuk persamaan diferensial parsial non-linierorde dua yang menerangkan pergerakan dari suatu fluida. Persamaan ini menjelaskan keseimbangan gaya-gaya yang bekerja pada fluida yaitu gaya-gaya benda dan gaya-gaya permukaan. Dalam studi ini, kasus yang ditinjau adalah aliran fluida laminar pada pipa tidak horizontal. Penyelesaian persamaan Navier-Stokes dilakukan secara teoretik. Dengan mengubah persamaan dalam bentuk koordinat polar serta mengintegrasikan secara langsung, maka diperoleh kecepatan rata-rata fluida, laju aliran volume fluida, serta laju aliran massa fluida pada pipa tidak horizontal.
Kapasitas Adsorpsi Arang Aktif Ijuk Pohon Aren (Arenga pinnata) terhadap Pb2+ Jasmal; Sulfikar; Ramlawati
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 4 No. 1 (2015): Volume 4 Nomor 1 (Maret 2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Penelitian ini bertujuan untuk mengetahui waktu kontak optimum, dan kapasitas adsorpsi arang aktif ijuk pohon aren terhadap ion Pb2+. Arang aktif ini dibuat dengan mengkarbonasi ijuk pohon aren pada suhu 400°C, dihaluskan hingga ukuran -100/+200 mesh, dan diaktifkan dengan merendam arang yang terjadi di dalam larutan NaCl 30% pada 80°C selama 5 jam dan dikeringkan pada suhu 110°C. Penentuan waktu kontak optimum menggunakan metode batch dengan variasi waktu yaitu 30, 60, 90, 120, dan 150 menit, dan penentuan kapasitas adsorpsi menggunakan pola isotherm Freundlich dan Langmuir dengan variasi konsentrasi ion Pb2+ 5, 10, 15, 20, dan 25 ppm. Banyaknya ion yang terserap diukur menggunakan Spektrofotometer Serepan Atom (SSA). Hasil penelitian yang diperoleh berupa waktu kontak optimum tercapai pada menit ke-120, dan pola adsorpsinya mengikuti model isotherm Freundlich dengan kapasitas adsorpsi sebesar 6,81 mg/g.

Page 8 of 29 | Total Record : 282

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