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Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
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 962 Documents
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PENERAPAN PEMBELAJARAN DENGAN BANTUAN BERTAHAP (SCAFFOLDING) UNTUK MENINGKATKAN AKTIVITAS DAN PRESTASI BELAJAR MATEMATIKA SISWA PADA MATERI POKOK TRIGONOMETRI KELAS X B SEMESTER II SMAN 1 LABUAPI TAHUN PELAJARAN 2013/2014 Made Dewi Ariani; Baidowi Baidowi; Syahrul Azmi
Jurnal Pijar Mipa Vol. 9 No. 2 (2014): 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 (71.67 KB) | DOI: 10.29303/jpm.v9i2.51

Abstract

Abstrak: Dalam pembelajaran matematika di kelas X B SMAN 1 Labuapi tahun pelajaran 2013/2014, terdapat permasalahan, yaitu siswa terbilang pasif selama proses pembelajaran, selain itu, siswa juga banyak mengalami kesulitan selama belajar matematika. Permasalahan tersebut berdampak terhadap rendahnya aktivitas dan prestasi belajar matematika siswa. Oleh karena itu, penelitian ini bertujuan untuk mengatasi permasalahan tersebut, dengan    menerapkan pembelajaran dengan bantuan bertahap (Scaffolding) pada siswa kelas X B SMAN 1 Labuapi tahun pelajaran 2013/2014 pada materi pokok trigonometri. Penerapan pembelajaran dengan bantuan bertahap (Scaffolding) terdiri atas 5 (lima) tahap, yaitu tahap intentionality, appropriatenes, structure, collaboration, internatization. Hasil penelitian menunjukkan terjadi peningkatan nilai rata – rata dari siklus 1 ke siklus 3 yaitu 66,56;75,28; dan 84,50. Ketuntasan belajar yang dicapai adalah 33,33%, 66,67%, dan 88,89%. Skor aktivitas belajar siswa pada siklus I sampai siklus III yaitu 10; 12; 17,dengan kategori cukup aktif, aktif, dan sangat aktif. Dari hasil tersebut dapat disimpulkan bahwa penerapan pembelajaran dengan bantuan bertahap (Scaffolding) dapat meningkatkan aktivitas dan prestasi belajar siswa di kelas X B SMAN 1 Labuapi tahun pelajaran 2013/2014. Kata Kunci: Scaffolding, aktivitas dan prestasi belajar.  Abstract: Mathematics learning process in X B class of senior high school number 1 Labuapi academic year 2013/2014 had some problems, students are not motivated to learn activity by their self, students meet difficulties in learning mathematics. Those problems causes the low of student’s mathematics learning activity and achievement in X B class of senior high school number 1 Labuapi. Therefore, this research aims to solve that problems, by implementing scaffolding learning in teaching trigonometri material trough students in X B class of senior high school number 1 Labuapi academic year 2013/2014. The implementation of scaffolding learning method is held in five (5) steps. The result showed that an increase in the average value from cycle 1 to cycle 3, which is 66,56; 75,28; and 84,50. Mastery learning from cycle 1 to cycle 3 respectively are 33,33%, 66,67%, and 88,89%. In cycle 1, the mean score of students’ learning activities is 10, 12, and 17, with quite active, active, and very active category. From this result it can be concluded that implementation of scaffolding learning can improve the mathematics activity and learning achievement in X Bclass students of senior high school number 1 Labuapi in material of trigonometry academic year 2013/2014. Key words : Scaffolding, learning activities,  and learning achievement
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TALKING STICK (TONGKAT BERBICARA) TERHADAP HASIL BELAJAR BIOLOGI SISWA KELAS X SMA NEGERI 2 LABUAPI TAHUN AJARAN 2011/2012 Nila Hartati; Putu Artayasa; Nur Lestari
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (231.812 KB) | DOI: 10.29303/jpm.v8i1.52

Abstract

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif tipe Talking Stick (Tongkat berbicara) terhadap hasil belajar biologi siswa kelas X SMA Negeri 2 Labuapi Tahun Ajaran 2011/2012. Jenis penelitian ini adalah eksperimen. Populasi dalam penelitian ini adalah semua siswa kelas X di SMA Negeri 2 Labuapi dan sampel penelitian adalah kelas XA yang berjumlah 27 orang sebagai kelas eksperimen dan kelas XC yang berjumlah 30 orang sebagai kelas kontrol. Sampel ditentukan dengan menggunakan teknik cluster random sampling. Data hasil penelitian berupa hasil belajar kognitif (nilai Post-test), hasil belajar  afektif (rubrik penilaian afektif) dan lembar observasi aktivitas guru. Untuk menguji hipótesis digunakan uji-t polled varians  terhadap hasil belajar (Kognitif dan afektif) antara kelas ekeperimen dan kontrol dengan taraf kesalahan 5% menunjukkan nilai thitung > ttabel (2,583 >1,673). Maka dapat disimpulkan bahwa penerapan model pembelajaran kooperatif tipe Talking Stick (Tongkat Berbicara) berpengaruh terhadap hasil belajar biologi siswa kelas X SMA Negeri 2 Labuapi tahun ajaran 2011/2012.Kata kunci : pembelajaran kooperatif, Talking Stick (Tongkat Berbicara) , hasil belajar.Abstract: This research was to know the effect of cooperative learning model by Talking Stick type the result learn of biology to students grade an  SMA Negeri 2 Labuapi in academic year 2011/2012. This type of research is an eksperimental. Population in this research were students in class X SMA Negeri 2 Labuapi and sample at this research are XA grade student amounting to 27 people as a class experimental and XC class student who numbered 30 persons as the control class. Sampel were determined using cluster random sampling technique. Data from studies of cognitive result larning (the post-test), affective result learning (affective assessment rubric), and teacher activity sheet. To test the hypothesis used polled varince t-test against the result of learning (Cognitive and Affective) between classes experimental and control with and error level of  5% shows the value  tcount > ttable  (2.583 >1,673). It can be concluded that the effect of cooperative learning model types talking stick the result learn biology class X SMA Negeri 2 Labuapi academic year 2011/2012.Key words: Cooperative Learning, Talking Stick, Learning Outcome
KORELASI ANTARA UMUR INKUBASI DENGAN TAHAP PERKEMBANGAN EMBRIO Chelonia mydas YANG DIINKBASI PADA SUHU INKUBASI YANG BERBEDA Syamsul Bahri
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (621.841 KB) | DOI: 10.29303/jpm.v8i1.53

Abstract

Abstrak: Kecepatan perkembangan embrio Chelonia mydas dipengaruhi oleh suhu inkubasi. Embrio yang diinkubasi pada suhu 31±1°C (SF)  mencapai tahap 17 pada umur inkubasi 22-23 hari, tahap 19 pada umur inkubasi 26 hari, dan tahap 22 pada umur inkubasi 31 hari. Embrio yang diinkubasi pada suhu 26±1°C (SM)  mencapai tahap tahap 17 pada umur inkubasi 39-40 hari, tahap 19 pada umur inkubasi. 45 hari, dan tahap 22 pada umur inkubasi 52-53 hari. Hasil pengamatan terhadap struktur histologis gonad embrio menunjukkan bahwa gonad embrio tahap 17, 19, dan tahap 22 telah berupa gonad indiferen. Gonad-gonad pada tahap tersebut sudah dapat dibedakan menjadi bagian korteks dan bagian medula. Bagian korteks berupa epitel selapis silindris, sedangkan bagian medula mengandung jaringan ikat dan kelompok-kelompok sel. Bakal sel kelamin ditemukan pada bagian medula dan korteks. Dengan demikian dapat disimpulkan bahwa periode TSP Chelonia mydas yang diinkubasi pada suhu 31±1°C (SF)   terentang dari umur inkubasi 22 hari hingga umur inkubasi 31 hari, sedangkan periode TSP Chelonia mydas yang diinkubasi pada suhu 26±1°C (SF)   terentang dari umur inkubasi 39 hari hingga umur inkubasi 53 hari.Kata kunci: Chelonia mydas, TSP, umur inkubasi, suhu feminisasi, suhu maskulinisasi Abstract: Embryonic development Rate of Chelonia mydas is affected by incubation temperature . The embryos were incubated at 31 ± 1°C ( FT ) reached embryonic stage of 17th at 22-23rd of incubation day, embryonic stage of 19th at 26th of incubation day, and embryonic stage of 22nd at 31st of incubation day. The embryos were incubated at 26 ± 1°C ( MT ) reached embryonic stage 17 th at 39-40th incubation day , embryonic stage 19 th at 45 th day of incubation , and embryonic stage 22nd at 52-53 rd incubation day. Observations on the histological structure of the gonadal embryos showed that the embryonic gonad stages 17th , 19th , and 22nd have been in indifferent stage. Gonads at this stage can be distinguished  in two parts, cortex and medulla. Cortex as a layer of cylindrical epithelium, while the medulla consist of connective tissue and  groups of cell. Primordial Germ Cells are found both in medulla and cortex . It can be concluded that the TSP of Chelonia mydas were incubated at 31 ± 1°C ( FT ) extended from 22nd of  incubation day until the 31st of incubation day , whereas the TSP of Chelonia mydas were incubated at 26 ± 1°C (MT) extended from 39th of  incubation day until the 53rd of incubation day.Key words: Chelonia mydas, TSP, feminization temperature, maskulinization temperature
EFEKTIVITAS MULTIMEDIA INTERAKTIF BERBASIS FLASH DAN MODEL 5E UNTUK MENINGKATKAN SIKAP TERHADAP SAINS SISWA SMP NEGERI 6 MATARAM Ellysabeth Usmiatiningsih; Ahmad Harjono; A. Wahab Jufri
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (200.61 KB) | DOI: 10.29303/jpm.v8i1.54

Abstract

Abstrak: Penelitian ini bertujuan untuk mengetahui efektivitas dan pengaruh multimedia interaktif berbasis flash (MIBF) dan model 5E terhadap  keterampilan berpikir kritis siswa. Desain penelitian eksperimen adalah pretest-postest non-equivalent control group dan setting pelaksanaan penelitian dengan rancangan faktorial  2 x 2. Populasi penelitian adalah kelas VIII SMPN6 Mataram, sebanyak 196 siswa yang tersebar di 7 kelas. Sampel  dipilih dengan simple random sampling dan diperoleh 97 siswa yang tersebar di 4 kelas yakni kelas VIIIB menerapkan model pembelajaran 5E tanpa menggunakan MIBF, kelas VIIIC menerapkan model pembelajaran 5E dan menggunakan MIBF, Kelas VIIID menerapkan model pembelajaran 2EK tanpa MIBF, dan kelas VIIIE menerapkan model 2EK dan menggunakan MIBF. Hasil penelitian menunjukkan pengaruh penggunaan MIBF (F = 100,96, p = 0,00) dan model 5E (F = 65,46, p = 0,00) pada sikap terhadap sains. Terdapat pengaruh interaksi antara MIBF dan model 5E (F = 38,64, p = 0,00) terhadap keterampilan perpikir kritis dan terdapat pengaruh interaksi antara MIBF dan model  5E(F = 13,05, p = 0,00) pada sikap terhadap sains siswa. Maka dapat disimpulkan bahwa MIBF dan model 5E efektif meningkatkan sikap tergadap sains.Kata kunci: MIBF, model 5E, sikap terhadap sains. Abstract: The aim of this study was to know effectiveness and effect of flash based interactive multimedia (FBIM) and 5E model toward students attitudes toward science. Experimental research desain was pretest-postest non-equivalent  control group and faktorial  2 x 2. The population consist of  196 students spread in 7 classes. These classes are grade VIII in SMPN6 Mataram. Sample  was choosen by using simple random sampling, Sample of this reseacrh consist of  97 students spread in 4 classes are grade VIIIB applied 5E model without FBIM grade VIIIC applied 5E model and FBIM, grade VIIID applied  2EK model without FBIM, and grade VIIIE applied 2EK model and  FBIM Result of experiment reseach shows that there are significant effect of FBIM (F = 100.96, p = 0.00) and 5E model (F = 65.46, p = 0.00) on attitudes toward science. There are significant effect of interaction between FBIM and 5E model (F = 13.05, p = 0.00) on attitudes toward science. It can be concluded that FBIM and 5E model are effective to enhance students attitudes toward science.Keywords: Flash based interactive multimedia, 5E model, attitudes  toward science.
PENGARUH MODEL JEMBATAN ANALOGI TERHADAP PEMAHAMAN ASPEK MIKROSKOPIK SISWA DENGAN GAYA BELAJAR BERBEDA PADA MATERI PELAJARAN KIMIA Baiq Asma Nufida; Muntari Muntari; Agus Abhi Purwoko
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (248.802 KB) | DOI: 10.29303/jpm.v8i1.55

Abstract

Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui: (1) pengaruh model implementasi jembatan analogis pada pemahaman mikroskopis siswa, (2) pengaruh gaya belajar siswa pada pemahaman mikroskopis siswa, dan (3) interaksi model Bridge analogis dan siswa gaya belajar terhadap pemahaman mikroskopis siswa. Ini adalah studi eksperimental semu dengan non setara pre-test post-test desain kelompok kontrol dan 2 x 3 desain analisis faktorial. Populasi penelitian ini adalah 206 siswa dari XI IPA di SMAN 2 Praya didistribusikan dalam empat kelompok belajar. Dua kelompok alami utuh dengan kemampuan setara sebelum terpilih sebagai sampel. Mereka dipilih secara acak sebagai kelompok eksperimen dan kelompok kontrol, maka XI IPA 4 didefinisikan sebagai kelompok eksperimen (perlakuan model Bridge analogis) dan XI IPA 3 didefinisikan sebagai kelompok kontrol (diobati dengan model konvensional). Instrumen penelitian ini adalah mikroskopis pemahaman siswa tes dan angket gaya belajar siswa. Data pemahaman mikroskopis siswa dikumpulkan dari skor tes siswa sedangkan data tentang gaya belajar siswa yang dikumpulkan dari kuesioner. Analisis data menggunakan analisis kovariannya (ANCOVA) dengan pre-test skor sebagai kovariannya. Semua data diasumsikan normal, linier dan homogen. Beda Nyata Terkecil (LSD) digunakan sebagai analisis Post. Analisis statistik menunjukkan bahwa model Bridge Analogical tidak berpengaruh secara signifikan terhadap pemahaman mikroskopis siswa (p> 0,05). Gaya belajar siswa, namun secara signifikan mempengaruhi pemahaman mikroskopis siswa (p <0,05). Interaksi model Bridge analogis dan gaya belajar yang secara signifikan mempengaruhi pemahaman mikroskopis siswa (p <0,05). Analisis post menunjukkan bahwa model Bridge Analogical paling baik diterapkan pada kelompok mahasiswa belajar gaya visual.Kata Kunci: representasi mikroskopis, analogi; gaya belajar Abstract: The aims of this study are to find out: (1) the influence of Analogical Bridge model implementation on student’s microscopic comprehension; (2) the influence of student’s learning style on student’s microscopic comprehension; and (3) the interaction of Analogical Bridge model and student’s learning style on student’s microscopic comprehension. It is a quasy experimental study with non equivalent pre-test post-test control group design and 2 x 3 factorial analysis design. The population of this study are 206 students of the XI IPA in SMAN 2 Praya distributed in four study group. Two naturally intact group with equivalent prior abilities are selected as the sample. They are randomly selected as experimental group and control group, then XI IPA 4 is defined as an experimental group  (treated by Analogical Bridge model) and XI IPA 3 is defined as a control group (treated by conventional model). Instruments of this study are student’s microscopic comprehension test and student’s learning style questionnaire. Data of student’s microscopic comprehension are collected from student’s test score while data about student’s learning style are collected from questionnaires. Data analyze using analysis of covarian (ancova) with pre-test score as covarian. All data are assumed normal, linier and homogenous. Least Significant Difference (LSD) is used as a Post analysis. Statistical analysis shows that Analogical Bridge model is not significantly influence the student’s microscopic comprehension (p > 0.05). Student’s learning style, however is significantly influence the student’s microscopic comprehension (p < 0.05). Interaction of Analogical Bridge model and learning’s style are significantly influence the student’s microscopic comprehension (p < 0.05). Post analysis shows that Analogical Bridge model is best applied on group of visual learning style student.Keyword: microscopic representation; analogy; learning style
PENGARUH STRATEGI BELAJAR TUNTAS (MASTERY LEARNING) TERHADAP PRESTASI BELAJAR KIMIA PADA MATERI POKOK REAKSI REDOKS KELAS X SEMESTER 2 SMA HANGTUAH 3 MATARAM TAHUN AJARAN 2011/2012 Degi Alrinda Agustina; Muntari Muntari; Muti’ah Muti’ah
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (164.864 KB) | DOI: 10.29303/jpm.v8i1.56

Abstract

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh strategi belajar tuntas (mastery learning) terhadap prestasi belajar siswa pada materi pokok reaksi redoks kelas X SMA Hangtuah 3 Mataram. Penelitian quasy eksperimen sebanyak dua kelas yang diperoleh melalui teknik sampling jenuh. Hasil secara statistik uji-t diperoleh thitung (1,509) lebih kecil daripada ttabel (2,021) pada taraf signifikan 5% sehingga dapat disimpulkan bahwa strategi belajar tuntas tidak memberikan pengaruh yang lebih baik secara signifikan daripada strategi ekspositori terhadap prestasi belajar kimia materi pokok reaksi redoks kelas X semester 2 SMA Hangtuah 3 Mataram tahun ajaran 2011/2012. Hal ini disebabkan siswa yang belum siap, proses bantuan belajar dan manajemen waktu dan yang kurang optimal, serta peneliti yang belum pernah mencoba strategi ini sebelumnya.Kata Kunci: Strategi belajar tuntas (Mastery Learning), Prestasi Belajar, Reaksi Redoks Abstract: This study was aimed to determine the effect of mastery learning strategy to the students learning achievement on the redox reactions material of first class students at SMA Hangtuah 3 Mataram. This quasy experimental design consists of two classes which were obtained through technique a saturated sampling. The result showed Statically the t-test was found that tcount (1.509) was lower than ttable(2.021) with 5% significance level therefore  it can be conclude  that the mastery learning strategy did not significantly affected than the expository strategy to the chemistry learning achievement on the redox reaction material of the first class students in the 2nd semester at SMA Hangtuah 3 Mataram academic year 2011/2012. This is caused students who are not ready, the process of learning assistance and the timing was not optimal, as well as researcher who have not tried this strategy before.Keywords: Mastery learning, learning outcome, oxidation reaction
PENGARUH PENGGUNAAN MEDIA KARTU DENGAN METODE CHEMO-EDUTAINMENT TERHADAP HASIL BELAJAR KIMIA PADA MATERI POKOK HIDROKARBON KELAS X SMA NEGERI 1 KURIPAN TAHUN AJARAN 2012/2013 Sunniarti Ariani; Jeckson Siahaan; Eka Junaidi
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (236.249 KB) | DOI: 10.29303/jpm.v8i1.57

Abstract

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan media kartu dengan metode chemo-edutainment terhadap hasil belajar kimia pada materi pokok hidrokarbon kelas X SMA Negeri 1 Kuripan tahun ajaran 2012/2013. Penelitian ini merupakan penelitian quasi eksperimental dengan populasi seluruh siswa kelas X SMA Negeri 1 Kuripan. Pengambilan sampel dengan teknik purposive sampling. Kelas yang dijadikan sampel adalah kelas XA sebagai kelas eksperimen yang diberikan pembelajaran menggunakan media kartu dengan metode chemo-edutainment dan kelas XC sebagai kelas kontrol yang diberikan pembelajaran secara konvensional. Data diperoleh dengan menggunakan tes yang dilaksanakan pada pertemuan akhir. Analisis data yang digunakan adalah uji anakova. Hasil penelitian menunjukkan bahwa pada kelas eksperimen  diperoleh nilai rata-rata 77,802 dengan ketuntasan klasikal 68,965%, sedangkan pada kelas kontrol diperoleh nilai rata-rata 64,204 dengan ketuntasan klasikal 33,333%. Hasil uji anakova pada taraf signifikan 5% diperoleh Fhitung (13,19) > Ftabel (4,0) yang berarti Ho pada penelitian ini ditolak atau Ha diterima. Hal ini menunjukkan bahwa penggunaan media kartu dengan metode chemo-edutainment berpengaruh lebih baik secara signifikan terhadap hasil belajar kimia pada materi pokok hidrokarbon kelas X SMA Negeri 1 Kuripan tahun ajaran 2012/2013.Kata Kunci : Media Kartu, Chemo-Edutainment, Hidrokarbon Abstract: This research aims to know the influence of use of cards media by chemo-edutainment method to students achievement of chemistry in subject matter of hydrocarbon in class X at SMAN 1 Kuripan in academic year of 2012/2013. This research represents a quasi experiment. The population of this research was the first grade of SMAN 1 Kuripan. This research uses the purposive sampling method. A sampled class is class XA as an experimental class that given learning in using cards media by chemo-edutainment method and class XC as a control class that given conventional learning. The data of students achievement is obtained by using a test that conducted at the last meeting. Analysis of the data used is the anacova test. The result showed that the experimental class got average score 77,802 with the classical completeness 68,965%, while, in the control class got average score 64,204 with the classical completeness 33,333%. The results of anacova test in significant level 5% got Fcalculation (13,19) > Ftable (4,0), that null hypothesis (Ho) is rejected or the alternative hypthesis (Ha) is accepted. It showed that using cards media by chemo-edutainment method was influence significantly better for the students achievement of chemistry in subject of hydrocarbon in class X at SMAN 1 Kuripan in academic year 2012/2013.Key words : media cards, chemo-edutainment, hydrocarbon.
PROSPEK ENZIM TANASE DALAM PENGEMBANGAN INDUSTRI DI INDONESIA Yunita Arian Sani Anwar
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (166.117 KB) | DOI: 10.29303/jpm.v8i1.58

Abstract

Abstrak: Tanase adalah enzim yang bekerja secara spesifik menguraikan tanin terhidrolisis membentuk asam galat dan glukosa. Enzim ini banyak dimanfaatkan baik di industri makanan maupun obat-obatan. Namun, di Indonesia aplikasi enzim ini belum banyak dilakukan karena harga enzim yang relatif mahal. Indonesia yang kaya akan keanekaragaman hayati memiliki potensi yang besar untuk produksi enzim terutama tanase. Kajian mengenai teknologi produksi enzim diharapkan mampu mengembangkan industri enzim maupun industri lainnya di Indonesia.Kata Kunci: Enzim, Tanin Tanase Abstract: Tanase is an enzyme that works specifically outlines tannins and gallic acid hydrolyzed to form glucose. This enzyme is widely used in both the food industry and medicine. However, in Indonesia, the application of this enzyme has not been done because the price is relatively expensive enzyme. Indonesia is rich in biodiversity has great potential for the production of enzymes, especially Tanase. The study of enzyme production technology is expected to develop industrial enzymes and other industries in Indonesia.Key notes: Enzyme, Tannin, Tannase
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEADS TOGETHER (NHT) PADA MATA KULIAH PERSAMAAN DIFERENSIAL PROGRAM STUDI PENDIDIKAN MATEMATIKA FKIP UNIVERSITAS MATARAM Nurul Hikmah; Arjudin Arjudin; Hapipi Hapipi
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
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 (150.073 KB) | DOI: 10.29303/jpm.v8i1.59

Abstract

Abstrak: Penelitian ini bertujuan untuk meningkatkan ranah kognitif dan afektif mahasiswa pada mata kuliah Persamaan Diferensial melalui penerapan model pembelajaran kooperatif tipe NHT pada semester V program studi pendidikan matematika  FKIP Unram tahun ajaran 2011/2012. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan dalam 3 siklus. Pada siklus ketiga, pembelajaran kooperatif tipe NHT telah berjalan secara optimal dengan ketuntasan belajar mahasiswa sebesar 88,89%. Hal ini menunjukkan bahwa model pembelajaran kooperatif tipe NHT dapat dijadikan salah satu alternatif model pembelajaran di perguruan tinggi khususnya pada mata kuliah Persamaan Diferensial.Kata Kunci: Pembelajaran Kooperatif tipe NHT, Persamaan Diferensial Abstract: This research aims at  increasing students cognitive and affective understanding in differential equation subject by applying NHT cooperative learning  model at semester V of mathematical education study program, Mataram University, academic year 2011/2012. This research is a classroom action research which is carried out in 3 cycles. In the last cycle, it is shown that NHT  cooperative learning has run optimally with the learning exhaustiveness achieved 88,89%. This result indicates that NHT cooperative learning can be made as one of instruction models in university, especially in differential equation subject.Key Words : NHT cooperative learning, differential equation
PENINGKATAN HASIL BELAJAR SISWA MELALUI STRATEGI PEMBELAJARAN DISCOVERY PADA MATA PELAJARAN IPA BIOLOGI KELAS VII-5 SMPN 4 MATARAM Mahyaeny Mahyaeny
Jurnal Pijar Mipa Vol. 11 No. 1 (2016): Maret
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 (322.104 KB) | DOI: 10.29303/jpm.v11i1.60

Abstract

Abstrak: Telah dilakukan penelitian menggunakan strategi pembelajaran discovery pada mata pelajaran IPA Biologi Kelas VII-5 SMPN 4 Mataram untuk meningatkan hasil belajar siswa. Penelitian dilaksanakan secara kolaboratif antara guru mata pelajaran dengan teman sejawat dalam bentuk penelitian tindakan kelas. Penelitian ini melibatkan siswa kelas VII-5 sebanyak 32 orang. Penelitian dilakukan dalam 2 siklus, masing-masing siklus terdiri dari tahap perencanaan, pelaksanaan tindakan, observasi, evaluasi, dan refleksi. Keberhasilan dalam penelitian ini tercapai apabila ketuntasan belajar klasikal ≥ 85% dan KKM ≥ 60. Selain itu indikator keberhasilan pelaksanaan strategy pembelajaran discovery jika hasil observasi memperoleh rata-rata skor ≥ 4,5 (sangat memuaskan). Hasil penelitian menunjukkan bahwa hasil belajar siswa pada siklus I adalah rata-rata kelas 71,8. Siswa yang memenuhi ketuntasan belajar individu sebanyak 21 siswa dari 32 siswa, sehingga presentase ketuntasannya mencapai 66%. Rata-rata skor pelaksanaan pembelajaran dengan strategi discovery 3,85 (memuaskan). Pelaksanaan evaluasi pada siklus II diperoleh data hasil belajar siswa dengan rata-rata 82,2. Presentase ketuntasan belajar secara klasikal mencapai 90%. Rata-rata skor pelaksanaan pembelajaran dengan strategi discovery 4,86 (sangat memuaskan). Kesimpulan dari penelitian ini adalah penerapan strategi pembelajaran discovery dapat meningkatkan hasil belajar IPA Biologi siswa kelas VII-5 SMPN 4 Mataram.Kata-kata Kunci : Hasil belajar, Discovery, IPA BiologiAbstract: Research using discovery learning strategies on the subjects of biology in grade VII-5 SMPN 4 Mataram has been done to improve student learning outcomes. The research was conducted collaboratively between teachers and peers in the form of classroom action research. The study involved students of class VII-5 as many as 32 people. The study was conducted in two cycles, each cycle consisting of planning, action, observation, evaluation, and reflection. This study was classical learning completeness succeed if ≥ 85%, and the minimum completeness criteria ≥ 60. In addition, the successful discovery learning is indicated resources by an average score of ≥ 4.5 (very satisfactory). The results showed that the learning outcomes in the first cycle is an average grade 71.8. Students who meet the individual learning completeness as many as 21 students from 32 students, so the completeness percentage reached 66%. The average score of the implementation of learning by discovery strategy 3.85 (satisfactory). In the second cycle learning outcomes of students obtained an average of 82.2 and the classical learning completeness percentage reached 90%. The average score of the implementation of learning by discovery strategy 4.86 (very satisfactory). The conclusion was that the application of discovery learning strategies can improve student learning outcomes in class VII-5 SMPN 4 Mataram. Key words:  Learning achievement, Discovery, Biology Science

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