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Contact Name
Saprizal Hadisaputra
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rizal@unram.ac.id
Phone
+6287738066422
Journal Mail Official
pijarmipa@unram.ac.id
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Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia
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Nusa tenggara barat
INDONESIA
Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 8 Documents
Search results for , issue "Vol. 5 No. 2 (2010): September" : 8 Documents clear
PENELITIAN TINDAKAN KELAS: ANTARA TEORI DAN PRAKTEK A. Wahab Jufri
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (113.77 KB) | DOI: 10.29303/jpm.v5i2.166

Abstract

Abstrak : Penelitian tindakan kelas merupakan salah satu proses inkuiri yang penting untuk dilaksanakan oleh guru dalam rangka meningkatkan kualitas proses dan hasil belajar peserta didik. Ada tiga karakteristik PTK yang perludipahami yakni, 1) dilaku-kan atas dasar adanya masalah yang dipicu oleh kesadaran guru bahwa praktik pembelajaran yang dilakukannya di kelas memerlukan perbaikan, 2) merupakan suatu bentuk kegiatan inkuiri yang dilakukan melalui refleksi diri, dan 3) dilaksanakan di dalam kelas oleh guru secara terintegrasi dengan kegiatan pembelajaran dan dapat menjadi tindakan inovatif guru dalam proses pelaksanaan tugas profesinya. Dalam rangka mengembangkan semangat dan kemampuan guru untuk melaksanakan PTK maka guru perlu difasilitasi untuk berperan serta sebagai peneliti pendamping dosen, diciptakan peluang dan akses untuk mengikuti diseminasi tentang hasil penelitian dan teori-teori serta praktik PTK di sekolah.Kata kunci : PTK, inkuiri, teori-praktik, peneliti pendampingAbstract : Classroom action research is one form of teacher inquiry activities to improve the quality of teaching processes and student learning achievements. There are three important characteristics of classroom action research (CAR) that should be known by teacher. First, it is conducted by teacher based on their awareness in relation to his/her teaching process. Second, it is a teacher’s inquiry activity which should be conducted through self reflection. Third, it is conducted by teacher as form of teaching innovation during his/her professional activities. In the efforts to developsteacher spirits and ability to proceeds classroom action research, therefore it is important to provide broad facility for teacher to be involved in lecturer’s research activities as co-researcher and to joint dissemination of scientific articles about theories and practices of the lassroom action research.Keywords : CAR, inquiry, theory-practices, co-researcher
DAMPAK PENERAPAN PENDEKATAN PEMBELAJARAN KOOPERATIF TIPE LEARNING TOGETHER (LT) YANG DIMODIFIKASI DENGAN BERGANTI PERAN DAN PERAN TETAP TERHADAP HASIL BELAJAR KIMIA ANORGANIK 1 Jeckson Siahaan
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.569 KB) | DOI: 10.29303/jpm.v5i2.167

Abstract

Abstrak : Tujuan dari penelitian ini adalah untuk mengetahui perbedaan hasil belajar mahasiswa antara yang diajar dengan pendekatan pembelajaran ceramah dan yang diajar dengan pendekatan pembelajaran kooperatif tipe LTyang dimodifikasi dengan berganti peran dan peran tetap. Penelitian ini dilakukan di Universitas Mataram dengan menerapkan rancangan eksperimen semu. Subjek penelitian adalah mahasiswa Program Studi Kimia, FMIPA, sebagai kelas eksperimen dan mahasiswa Program Studi Pendidikan Kimia, FKIP, sebagai kelas kontrol tahun ajaran 2007/2008. Data penelitian terdiri dari hasil belajar mahasiswa berupa tes hasil belajar dengan validitas isi sebesar 97,8% dan koefisien reliabilitas diukur dengan metode paralel, sebesar 0,81. Hasil-hasil penelitian ini menunjukkan bahwa pendekatan pembelajaran kooperatif tipe LT yang dimodifikasi dengan berganti peran dan peran tetap lebih baik dibanding pendekatan pembelajaran ceramah, dan berganti peran lebih baik dibanding peran tetap.Kata kunci : Pembelajaran kooperatif, berganti peran, peran tetap, hasil belajar.Abstract : The aims of this research are to find out the differences of the results of study of Inorganic Chemistry course between students who teached with convensional learning approach versus cooperative learning type oflearning together approaches modified for exchange and permanent roles. This investigation applied a quasi-experimental design and has conducted at Mataram University. Subjects of this research were students of chemistry study program of faculty of mathematic and science as an experimental group and students of chemistry education study program of faculty of teacher training and education as a control group in the academic year of 2007/2008. The data of this research consist of students! result study generated from essay test with content validity was 97.8% and reliability coefficient measured by parallel method was .81. The results showed that cooperative learning type of learning together approach modified for exchange and permanent roles were better than convensional learning ones, and exchange role was better than permanent one.Keywords : Cooperative learning, learning together, exchange role, permanent role, achievement, perception.
SINTESIS FEROMON 6-METIL-2-HEPTEN-4-OL DARI KROTONALDEHID MELALUI PEMBENTUKAN REAGEN GRIGNARD ISOBUTILMAGNESIUM BROMIDA Putu Indrayani; Aliefman Hakim
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.68 KB) | DOI: 10.29303/jpm.v5i2.168

Abstract

Abstrak : Sintesis 6-metil-2-hepten-4-ol diawali dengan pembentukan reagen Grignard isobutilmagnesium bromida pada 400C selama 1 jam, dilanjutkan dengan pembentukan garam alkoksi magnesium bromida pada 00C.Hidrolisis terhadap garam alkoksi magnesium bromida dengan larutan NH4Cl jenuh menghasilkan 6-metil-2-hepten-4-ol. Hasil sintesis kemudian diuji sifat fisiko-kimianya meliputi berat jenis, indeks bias serta identifikasi denganSpektrofotometer Inframerah (IR), Kromatografi Gas (GC) dan Kromatografi Gas-Spektrometer Massa (GC-MS). Hasil sintesis menghasilkan cairan beraroma manis segar, berwarna kekuningan, berat jenis 0,81529 g/mL, indeks bias 1,40830, kemurnian 66,07 % dan hasil 46,31 %. Karakter IR senyawa hasil sintesis menunjukkan vibrasi ulur O-H alkohol pada 3361 cm-1, vibrasi ulur C-OH pada 1049,2 cm-1, vibrasi ulur C=C pada 1676 cm-1 dan serapan 2956,7 dan 2920 cm-1 untuk vibrasi ulur C-H dalam CH 3 dan spektra massa dengan m/e 128 yang dicapai pada waktu retensi 6,284 menit. Data-data tersebut mendukung bahwa senyawa hasil sintesis adalah 6-metil-2-hepten-4-ol.Kata kunci : Sintesis, reaksi Grignard dan 6-metil-2-hepten-4-olAbstract : Synthesis of 6-methyl-2-hepten-4-ol was generated with formation of Grignard reagent Isobutylmagnesium bromide carried out at 400C for one hour, then formation of alcoxide salt magnesium bromide carried out at 00C. Alcoxide salt magnesium bromide were hydrolyzed by saturated NH4Cl solution producing 6-methyl-2-hepten-4-ol. Results were examined physically and chemically including density, refraction index, pure percentage and yield percentage were 0,81529 g/mL, 1,40830, 66,07 % and 46,31 % respectively. The IR characters showed stretching vibration of O-H group at 3361 cm-1, stretching vibration C-OH group at 1049,2 cm-1, stretching vibration C=C group at 1676 cm-1 and absorption of C-H in CH3 2956,7 and 2920 cm-1. Identification using GC-MS resulted spectra m/e 128 at time retention 6,284 minutes. The proven data indicated that the resulted compound was 6-methyl-2-hepten-4-ol.Keywords : synthesis, Grignard reaction and 6-methyl-2-hepten-4-ol
PERBANDINGAN HASIL BELAJAR BIOLOGI SISWA KELAS X SMAN 2 MATARAM YANG BELAJAR MELALUI PENDEKATAN NHT DAN TPS TAHUN AJARAN 2008/2009 Siti Raudatul Adawiyah; Mahrus Mahrus; Lalu Japa
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (149.108 KB) | DOI: 10.29303/jpm.v5i2.169

Abstract

Abstrak : Penelitian ini dilakukan untuk mengetahui perbedaan hasil belajar biologi pada pembelajaran menggunakan pendekatan NHT dan pendekatan TPS di kelas X SMAN 2 Mataram tahun ajaran 2008/2009. Populasipenelitian ini adalah seluruh siswa kelas X SMAN 2 Mataram. Sampel penelitian adalah siswa kelas X4 diajar dengan pendekatan NHT dan kelas X8 diajar dengan pendekatan TPS. Sampel ditetapkan dengan teknik cluster random sampling. Instrumen penelitian berupa tes hasil belajar, lembar observasi aktivitas guru dan siswa, lembar penilaian afektif dan psikomotor, dan angket respon siswa. Siswa yang diajar dengan pendekatan NHT dan TPS diberikan posttest setelah sama-sama diberikan perlakuan pembelajaran. Data hasil penelitian berupa hasil posttest dianalisis secara statistik menggunakan uji-t pada taraf signifikansi 5%. Hasil penelitian menunjukkan, bahwa nilai rata-rata posttest kelas yang diajar dengan pendekatan NHT dan pendekatan TPS masing-masing sebesar 65,44 dan 76,19. Hasil uji-t menggunakanrumus polled varians diperoleh nilai t-hitung lebih besar dari t-tabel (4,384 > 1,994). Kesimpulan penelitian ini adalah ada perbedaan yang signifikan antara hasil belajar biologi siswa SMAN 2 Mataram yang diajar dengan pendekatanNHT dan TPS. Pendekatan TPS lebih baik dibandingkan dengan pendekatan NHT.Kata kunci : Hasil belajar, Pendekatan NHT, Pendekatan TPSAbstract : This research held to know the difference of student achievement in biological subject of class X of SMAN 2 Mataram thought using NHT and TPS approaches in the academic year of 2008/2009. The research population were all students of class X of SMAN 2 Mataram, and the samples of this research were class X4 and X8. Cluster random sampling was applied for determining the classes sample. Teaching approach for class X4 was NHT and TPS for class X8. Instruments of this research were test for cognitive achievement, observation sheets for students and teacher activities, assessment sheet for affective and psychomotor of students, and questioner for students response on both the teaching approaches. Data were analyzed statistically by using t-test at significant level of 5%. The results show that the average students achievement in class thought with NHT and TPS approaches were 65.44 and 76.19, respectively. Further analysis obtained the value of t-count was greater than t-table (3.384: 1.994). This means that the studentachievement was much greater in class thought by TPS compared to that of class thought by NHT approach. In other words, there was a significant different of student achievement thought by TPS and NHT.Key words : Students achievement, NHT and TPS approaches.
ENERAPAN MODEL PEMBELAJARAN KOOPERATIF DENGAN PENDEKATAN SAVI (SOMATIC, AUDITORY, VISUAL, INTELLECTUAL) UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA KELAS VIII SMP NEGERI 15 MATARAM TAHUN AJARAN 2008/2009 Gita Baitari; Ahmad Raksun; Didik Santoso
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.342 KB) | DOI: 10.29303/jpm.v5i2.170

Abstract

Abstrak : Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model pembelajaran kooperatif dengan pendekatan SAVI (Somatis, Auditori, Visual, Intelektual) dalam meningkatkan prestasi belajar biologi siswakelas VIII SMP Negeri 15 Mataram tahun ajaran 2008/2009. Populasi dalam penelitian ini adalah semua siswa kelas VIII SMPN 15 Mataram dan sampel penelitian ádalah siswa kelas VIIIA dan VIIB .Jenis penelitian ini adalah quasieksperimen dengan desain penelitian pre-test dan post-test group design. Dalam penelitian ini digunakan teknik cluster random sampling. Data hasil penelitian berupa hasil dari pre-test dan post-test dianalisis secara statistik menggunakan uji-t pada taraf signifikansi 95%. Hasil penelitian menunjukkan bahwa nilai rata-rata pre-test dan post-test kelas eksperimen masing-masing sebesar 43,1 dan 85,6, nilai rata-rata pre-test dan post-test kelas kontrol masing-masing sebesar 46,625 dan 72,3. Hasil uji-t diperoleh t hitung 6,77 lebih besar dari t tabel 1,67 yang berarti terdapat perbedaan prestasi belajar biologi yang signifikan antara kelas eksperimen dan kelas kontrol. Kesimpulan hasil penelitian ini bahwa penerapan model pembelajaran kooperatif dengan pendekatan SAVI dapat meningkatkan prestasi belajar biologi siswa kelas VIII SMP Negeri 15 Mataram tahun ajaran 2008/2009.Kata kunci : model pembelajaran kooperatif pendekatan SAVI, prestasi belajar.Abstract : This research is held to know the influence of cooperative learning by using the SAVI (Somatic, Auditory, Visual, Intellectual) approach in increasing the student’s achievment at SMP Negeri 15 grade VIII with theacademic year 2008/2009. The population of this research are the students of SMPN 15 Nataram grade VIII, while the sample are the students of VIII-A and VIII-B. The kind of this research is quasi experiment by using pre-test and posttest group design. Cluster random sampling is used in this research. The data is analyzed statisticly by using t-test in significant level 5 %. . The result of this reseacrh shows that, the average values of pre-test and post test for experiment group are 43,1 and 85,6 mean while average values of pre-test and post- test control group are 46,625 and 72,3. the result of t-test obtaned value of t-hitung 6,77 is more than t-tabel 1,67, it is mean that the different  achievment of students in biology between the experiment group and control group significantly. The conclusion of this researc is the application cooperative learning model by using SAVI approach is able to increase the student achievment at SMP Negeri 15 grade VIII with the academic year 2008/200.Key words : cooperative learning, SAVI approach, achievment
PEMBELAJARAN QUANTUM MODEL TANDUR UNTUK MEMBANGUN KOMUNIKASI EFEKTIF DALAM PEMBELAJARAN Baiq Sri Handayani
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (164.604 KB) | DOI: 10.29303/jpm.v5i2.171

Abstract

Abstrak : Kualitas pembelajaran dipengaruhi oleh efektif tidaknya komunikasi yang terjadi di dalamnya. Komunikasi efektif dalam pembelajaran merupakan proses transformasi pesan berupa ilmu pengetahuan dan teknologi dari pendidik kepada peserta didik, dimana peserta didik mampu memahami maksud pesan sesuai dengan tujuan yang telah ditentukan, sehingga menambah wawasan ilmu pengetahuan dan teknologi serta menimbulkan perubahan tingkah laku menjadi lebih baik. Pengajar adalah pihak yang paling bertanggungjawab terhadap berlangsungnya komunikasi yang efektif dalam pembelajaran. Motode Pembelajaran Quantum Model Tandur merupakan salah satu media efektif dan bisa dipakai pengajar untuk membangun komunikasi efktif. Hal ini dilihat dari prinsip-prinsip Pembelajaran Quantum dan langkah-langkah pelaksanaannya Pembelajaran Quantum Model TANDUR. Kata Kunci : Komunikasi fektif, Quantum Teaching, Model Tandur
ANALISIS TITIK EKUILIBRIUM ENDEMIK MODEL EPIDEMI SEIV DENGAN LAJU PENULARAN NONLINEAR Nurul Hikmah
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.247 KB) | DOI: 10.29303/jpm.v5i2.172

Abstract

Abstrak. Pada paper ini diberikan model epidemi SEIV dengan laju penularan nonlinear. Model ini menjelaskan tentang efek psikologi dari perubahan perilaku individu yang rentan ketika jumlah individu yang terinfeksi mengalami peningkatan. Dalam paper ini akan dilakukan analisis global dari model epidemi SEIV dan menyelidiki kestabilan global titik ekuilibrium endemik , selanjutnya diperoleh bahwa titik ekuilibrium endemik model epidemi SEIV stabil global. Kata Kunci : SEIV, titik ekuilibrium, kestabilan Abstract. In this paper, we consider a SEIV epidemic model with nonlinear incidence rate. This model describes the psychological effect of the behavioral change of susceptible individuals when the number of infectious individuals increases. By carrying out a global analysis of the model and studying the globally stability of the endemic equilibrium in this paper, we show that the endemic equilibrium of a SEIV epidemic model is globally stable. Key words: SEIV, equilibrium point, stability
PENDEKATAN ESTIMATOR KERNEL UNTUK ESTIMASI DENSITAS MULUS Laila Hayati
Jurnal Pijar Mipa Vol. 5 No. 2 (2010): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.554 KB) | DOI: 10.29303/jpm.v5i2.173

Abstract

Abstrak : Misalkan diberikan data pengamatan independen X i : i  1,2,..., n dengan fungsi densitas f. Ada dua pendekatan dalam mengestimasi f yaitu dengan pendekatan parametrik dan pendekatan nonparametik. Padapendekatan nonparametrik dilakukan jika asumsi bentuk f tidak diketahui. Dalam hal ini diasumsikan bahwa fungsi f termuat dalam kelas fungsi mulus. Salah satu teknik untuk mengestimasi fungsi mulus adalah teknik pemulus kernel.Tingkat kemulusan fungsi estimasi ditentukan oleh parameter pemulus. Semakin besar parameter pemulusnya semakin mulus fungsi estimasi dan sebaliknya.Kata-kata Kunci: densitas mulus, estimator kernel, parameter pemulusAbstract: Let X i : i  1,2,..., nbe independent observation data from a distribution with density function f. There are two basic approaches for estimating f, the parametric and the nonparametric approaches. In nonparametric approaches, an unknown density function f. The function f is assumed to be a smooth function, so the function f could be estimated by kernel estimator. The smoothing level of kernel estimator depends to the smoothing parameter. The big smoothing parameter gives the estimation function which over smooth and the contrary.Key Words: smooth density, kernel estimator, smoothing parameter

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