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Jurnal Pijar MIPA

JPM
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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 8 Documents

Search results for , issue "Vol. 8 No. 2 (2013): September" : 8 Documents clear

EFEKTIFITAS PEMBELAJARAN BERBASIS MASALAH (PBM) DAN STRATEGI KOOPERATIF TERHADAP KEMAMPUAN MENYELESAIKAN MASALAH DAN HASIL BELAJAR KOGNITIF BIOLOGI DITINJAU DARI KEMAMPUAN AKADEMIK AWAL SISWA KELAS X SMA NEGERI 3 MATARAM I Gst Ayu Suartini Gayatri; Dwi Soelistya Dyah Jekti; A. Wahab Jufri
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Saat ini sekolah belum menerapkan suasana belajar yang mengembangkan kemampuan siswa, terutama dalam kemampuan menyelesaikan masalah dan hasil belajar kognitif siswa. Sehingga tingkatan kemampuan berpikir siswa hanya berada pada tataran berpikir tingkat rendah yang tidak memiliki penalaran dan kemampuan menyelesaikanÃÂ masalah yang nyata. Pendekatan pembelajaran berbasis masalah dan strategi pembelajaran kooperatif menjadi alternatif pendekatan pembelajaran yang dapat meningktakan hasil belajar siswa. Penelitian ini bertujuan untuk mengetahui adanya pengaruh penerapan pembelajaran (PBM terintegrasi STAD, PBM dan STAD), kemampuan akademik siswa dan interaksi antara strategi pembelajaran dengan tingkat kemampuan akademik siswa terhadap kemampuan menyelesaikan masalah dan hasil belajar kognitif biologi siswa kelas X SMAN 3 Mataram. Penelitian ini merupakan penelitian quasi experimentÃÂ dengan Pretest-Posttes Nonequivalent Control Group Design, perlakuan dengan seting faktorial 2 x 3. Populasi penelitian sebanyak 480 siswa yang tersebar dalam 12 kelas. Teknik sampling dipilih dengan cluster random sampling dan diperoleh 120 siswa yang tersebar dalam 3 kelas. Hasil uji statistik menunjukkanÃÂ adanya pengaruh yang signifikan (p<0,05) pada penerapan strategi pembelajaran (PBM terintegrasi STAD, PBM dan STAD) terhadap kemampuan menyelesaikan masalahÃÂ dan hasil belajar kognitif siswa.ÃÂ Tingkat kemampuan akademik siswa (tinggi dan rendah) juga menunjukkan pengaruh yang signifikan (p<0,05) terhadap kemampuan menyelesaikan masalahÃÂ dan hasil belajar kognitif siswa. Namun interaksi antara srategi pembelajaran dengan kemampuan akademik siswa tidak berpengaruh terhadap kemampuan menyelesaikan masalahÃÂ dan hasil belajar kognitif siswa (p>0,05).ÃÂ Kata kunci: Pembelajaran berbasis masalah, strategi kooperatif, kemampuan menyelesaikan masalah, hasil belajar kognitif.ÃÂ Abstract: Currently the school has not implemented a learning environment that develops students' skills, particularly in the ability to solve problems and cognitive learning outcomes of students. So the level of students' thinking skills are only at the level of the low-level thinking and reasoning that does not have the ability to solve real problems. Approach to problem-based learning and cooperative learning strategies into alternative learning approach that can drive the students' learning outcomes. This study aimed to investigate the effect of the application of learning (STAD integrated PBL, PBL and STAD), academic ability of students and interaction between learning strategy and academic level of students' ability to problem-solving ability and cognitive learning outcomes biology class X student of SMAN 3 Mataram. This research is a quasi-experiment with pretest Posttes Nonequivalent Control Group Design, treatment with 2 x 3 factorial setting. The study population of 480 students in 12 classes spread. Sampling technique selected by random cluster sampling and obtained 120 students spread into 3 classes. Statistical test results showed a significant effect (p <0.05) on the application of learning strategies (STAD integrated PBL, PBL and STAD) the ability to solve problems and cognitive learning outcomes of students. Students' level of academic ability (high and low) also showed a significant effect (p <0.05) to the problem-solving skills and cognitive learning outcomes of students. However, the interaction between the strategy of learning with students' academic abilities do not affect the ability to solve problems and cognitive learning outcomes of students (p> 0,05).Keywords: ÃÂ ÃÂ ÃÂ ÃÂ Problem-based learning, cooperative strategies, problem-solving skills, cognitive learning outcomes.

PENGEMBANGAN WEB INTRANET FISIKA UNTUK MENINGKATKAN PENGUASAAN KONSEP DAN KEMAMPUAN PEMECAHAN MASALAH SISWA SMKN 2 PRAYA TENGAH I Komang Yogi Sukmantara; Aris Doyan; Gunawan Gunawan
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Penelitian ini bertujuan untuk mengembangkan media pembelajaran web intranet fisika dan mengetahui pengaruhnya terhadap penguasaan konsep dan kemampuan pemecahan masalah siswa. Penelitian ini menggunakan desain penelitian dan pengembangan model Borg dan Gall yang dimodifikasi menjadi 3 tahap, yaitu tahap studi pendahuluan, tahap pengembangan media/produk, dan tahap uji coba media/produk. Media pembelajaran web intranet fisika dikembangkan pada materi usaha, energi, dan daya. Kedua kelas dianalisis menggunakan uji perbedaan rata-rata (Uji t atau Uji Mann-Whitney) dan skor gain ternormalisasi (N-gain). Uji Mann-Whitney penguasaan konsep menghasilkan nilai sebesar 0,047 pada taraf kepercayaan 95% yang berarti terdapat perbedaan yang signifikan antara peningkatan penguasaan konsep kelas eksperimen dibandingkan dengan kelas kontrol. Rata-rata N-gain penguasaan konsep kelas eksperimen adalah 53,73% (sedang) sedangkan rata-rata N-gain kelas kontrol adalahÃÂ 47,16% (sedang). Uji Mann-Whitney kemampuan pemecahan masalah menghasilkan nilai sebesar 0,34 pada taraf kepercayaan 95% yang berarti tidak terdapat perbedaan signifikan antara kemampuan pemecahan masalah kelas eksperimen dengan kelas kontrol. Rata-rata N-gain kelas eksperimen adalah 48,56% (sedang) sedangkan rata-rata N-gain kelas kontrol adalah 48,16% (sedang).Kata kunci: Web Intranet Fisika, Penguasaan Konsep, dan Kemampuan Pemecahan Masalah.ÃÂ Abstract: The research was aimed at developing a learning media of physics intranet web and knowing its impacts to the concept comprehension and problem solving skills. The research used a research design and development model of Borg and Gall which was modified into three stages; those were stage of preliminary study, stage of media/product development, and stage of media/product testing. The learning material of work, energy and power in the experimental group used the physics intranet web, while the control group did not use it. The data from both groups were analyzed using difference of means test (t-test or Mann-Whitney test) and normalized gain score (N-gain). Mann-Whitney test on concept comprehension generated a value of 0,047 at confidence level of 95%, meaning there was a significant difference between the improvement of concept comprehension in the experimental group and that in the control group. The means of N-gain on concept comprehension of the experimental group was 53,73% (medium), while the means of N-gain of the control group was 47,16% (medium). Mann-Whitney test on problem solving skills generated a value of 0,34 at the confidence level of 95%, meaning there was not a significant difference between the problem solving skill in the experimental group and that in the control group. ÃÂ The means of N-gain of the experimental group was 48,56% (medium), while the means of N-gain of the control group was 48,16% (medium).Key words: Physics Intranet Web, Concept Comprehension and Problem Solving Skills.

TANGGAPAN MAHASISWA DAN DOSEN TERHADAP PEMBELAJARAN BERBASIS PROSES BERPIKIR KAUSALITAS DAN BERPIKIR ANALITIK DALAM PERKULIAHAN FISIKA Joni Rokhmat; agus Setiawan
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Telah dikembangkan model pembelajaran berbasis proses berpikir kausalitas dan berpikir analitik (PBK-BA) untuk meningkatkan kemampuan problem-solving (KPS) mahasiswa calon guru fisika. Penelitian ini bertujuan mendesain pembelajaran berbasis PBK-BA dan menentukan pola PBK-BA yang perlu dikembangkan. Penelitian menggunakan metoda mixed method berjenis embedded design one-phase dengan penekanan kualitatif. Dengan taraf kepercayaan 95%, implementasi model pembelajaran ini secara signifikan dapat meningkatkan kemampuan problem-solving (KPS) mahasiswa yang meliputi kemampuan understanding, selecting, differentiating, determining, applying, dan identifying tetapi secara umum peningkatan tersebut pada mahasiswa kelas atas dan bawah tidak berbeda signifikan. Selain itu, pencapaian kemampuan PBK-BA dan KPS mahasiswa masih rendah. Mahasiswa dan dosen sependapat terhadap pernyataan positip dan berpendapat sebaliknya terhadap pernyataan negatip pengembangan PBK-BA. Dari tanggapan bebas mahasiswa menyatakan dengan PBK-BA lebih mengerti konsep fisika, senang, meningkatkan daya pikir, dan dapat belajar fisika secara utuh sedangkan menurut dosen perlu ilustrasi gambar, contoh persoalan yang sudah diselesaikan, persoalan yang real, berjenjang, dan menggunakan persoalan lebih mudah dan sederhana. Hasil penelitian ini merekomendasikan untuk mengembangkan dua pola PBK-BA, yaitu pola standar dan pola yang ber-scaffolding.Kata kunci: Pembelajaran berbasis PBK-BA, KPS, pola PBK-BA standar, pola PBK-BA ber-scaffolding.Abstract: It has been developed a learning model based on the process of causality and analytic thinking (PCAT) to improve problem-solving skill (PSS) of the pre service students of Physics. The purpose of this research is to design the learning model based on PCAT and determine the pattern needed for improving PSS optimally. The method used is mixed method of embedded design one-phase emphasing qualitative. By means degree of belief of 95%, the implementation this model significantly increase of PSS of the students including the skills of understanding, selecting, differentiating, determining, applying, dan identifying but the increase of PSS on the top class better than that of low class. In addition, the attainment of the PCAT and PSS skills of the students has a category counted low. In general, the Students and Lecturers agree to the positive statements and disagree to those of the negative statements about the development of PCAT. The results of free response, the Students state that they get more understand the physics concepts, like to study, improve the power of thinking, and can learn physics wholly. Whereas, those the Lecturers state that the model need to be complemented by such as illustration pictures, an example ofÃÂ the problem being solved, real problems, scaffolding problems, and the problems easier and simplier. To make an optimal attainment of PSS of the students it is recommended to develop two patterns of PCAT, i.e. the standard and scaffolding patterns.Key words: Learning based on PCAT, PSS, standard pattern of PCAT, and scaffolding patternÃÂ of PCAT.

ANALISIS TINGKAT PEMAHAMAN KONSEP SISWA KELAS XI IPA SMAN 3 MATARAM MENGGUNAKAN ONE TIER DAN TWO TIER TEST MATERI KELARUTAN DAN HASIL KALI KELARUTAN Nabilah Nabilah; Yayuk Andayani; Dwi Laksmiwati
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Penelitian ini bertujuan untuk menganalisis tingkat pemahaman konsep siswa kelas XI IPA SMAN 3 Mataram menggunakan one tier dan two tier test materi kelarutan dan hasil kali kelarutan. Soal one tier diujikan kepada siswa kelas XI IPA 4 dan soal two tier untuk siswa kelas XI IPA 5. Data pemahaman konsep siswa dianalisis menggunakan persentase. Hasil pemahaman konsep menggunakan One Tier Test (57,4%) lebih besar daripada menggunakan Two Tier Test (21,03%). One Tier Test hanya menunjukkan pemahaman konsep siswa, sedangkan Two Tier Test dapat membagi pemahaman konsep siswa menjadi beberapa tingkatan pemahaman melalui analisis pola jawaban siswa pada tingkat pertama dan kedua. Analisis menggunakan Two Tier Test menghasilkan tingkat pemahaman diantaranya memahami (20.77%), miskonsepsi-1 (22.05%), miskonssepsi-2 (18.08%), memahami sebagian tanpa miskonsepsi (0.13%), tidak memahami konsep-1 (36.67%), tidak memahami konsep-2 (0.38%), dan tidak memahami konsep-3 (1.67%). Hasil penelitian menunjukkan bahwa two tier test lebih efektif untuk menentukan tingkat pemahaman konsep siswa daripada menggunakan one tier test.Kata Kunci: Tingkat Pemahaman Konsep, One Tier Test, Two Tier Test, Kelarutan dan Hasil Kali KelarutanÃÂ Abstract: The objective of this research was to analyzed conceptual understanding level of XI science grade students of SMAN 3 Mataram by used one-tier and two-tier test in solubility and solubility product subject. One-tier test are examined to XI IPA 4 grade students and two-tier test to XI IPA 5 grade students. The results of conceptual understanding using one-tier test (57,4%) are higher than using two-tier test (21,03%). One-tier test only showed the studentsÃ¢â¬â¢s conceptual understanding, whereas two-tier test could divided studentÃ¢â¬â¢s conceptual understanding into some understanding level trough analysis the pattern ofÃÂ studentÃ¢â¬â¢s answer in first tier and second tier. The analysis using two-tier test indicated some understanding level such as understand (20.77%), misconception-1 (22.05%), misconception-2 (18.08%), partial understanding witout misconception (0.13%), not understanding-1 (36.67%), not understanding-2 (0.38%), and not understanding-3 (1.67%). The results of this research showed that two-tier test was more effective on determining the studentÃ¢â¬â¢s conceptual understanding level than one-tier test.Key Words: Conceptual understanding level, one-tier test, two-tier test, solubility and solubility products

PENGARUH MODEL PEMBELAJARAN BERBASIS PROYEK TERHADAP PRESTASI BELAJAR KIMIA SISWA KELAS XI IPA SMAN 1 NARMADA TAHUN PELAJARAN 2013/2014 Nurbaiti Rindang Utami; Yayuk Andayani; Muntari Muntari
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran berbasis proyek terhadap prestasi belajar kimia siswa kelas XI IPA SMAN 1 Narmada Tahun Pelajaran 2013/2014. Penelitian ini menggunakan desain penelitian eksperimen semu dengan rancangan post test only control group design. Pengambilan sampel dilakukan dengan teknik cluster random sampling karena anggota populasi sudah homogen berdasarkan data nilai ujian semester ganjil siswa kelas XI IPA. Kelas XI IPA 1 sebagai kelas eksperimen menggunakan model pembelajaran berbasis proyek dan kelas XI IPA 3 sebagai kelas kontrol menggunakan model pembelajaran konvensional. Post test digunakan sebagai instrumen utama penelitian, selain itu portofolio juga digunakan sebagai instrumen kedua penelitian ini. Hasil uji beda (uji-t) post test dengan taraf signifikan 5% menunjukkan thitung (4,105) > ttabel (2,000) sehingga H0 ditolak. Uji-t dilakukan juga pada hasil portofolio yang menunjukkan thitung (2,89) > ttabel (2,000). Berdasarkan kedua hasil tersebut, dapat disimpulkan bahwa model pembelajaran berbasis proyek memberikan pengaruh yang lebih baik dibandingkan dengan model konvensional terhadap prestasi belajar kimia siswa kelas XI IPA SMAN 1 Narmada Tahun Pelajaran 2013/2014.Kata Kunci: Model pembelajaran berbasis proyek, prestasi belajar kimiaÃÂ Abstract: The objective of the research was to know the effect of Project-Based Learning towards the studentÃ¢â¬â¢s chemistry learning achievement class XI IPA of SMAN 1 Narmada in 2013/2014 academic year. This research used a quasi-experimental research design with the design of post-test only control group design. Sampling was done by cluster random sampling technique because members of populations have homogeneous based on data value semester exams of class XI science students. Class XI IPA 1 as experimental group was threated by project-based learning model and class XI IPA 3 as control group was threated by conventional learning models. Post test is used as an basic instrument. In addition, the portofolio is as a second instrument of this research.. The results of post-test hypothesis test using a different test (t-test) with a significance level of 5% showed tacc (4.105)> ttable (2.000) so that H0 is rejected. Hypothesis testing is also performed on the results of portfolio show tacc (2.89)> ttable (2.000). Based on these results, we can conclude that project-based learning model provides give a better effect than the conventional models of the studentÃ¢â¬â¢s chemistrylearning achievement class XI IPA of SMAN 1 Narmada in 2013/2014 academic year.Keywords: ÃÂ ÃÂ ÃÂ project-based learning model, the studentsÃ¢â¬â¢s chemistry achievement learning

MODEL PEMBELAJARAN TERINTEGRASI DALAM RPP UNTUK MENINGKATKAN PROSES PEMBELAJARAN KIMIA DI SMA WILAYAH KEPENGAWASAN KABUPATEN LOMBOK BARAT Sumardiyanto Sumardiyanto; Yayuk Andayani; Muntari Muntari
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Tugas pengawas sekolah adalah melakukan pengawasan akademik dan manajerial, melakukan pembimbingan dan pelatihan profesional guru, dan evaluasi hasil pelaksanaan program pengawasan. Guru memiliki peranan penting dalam pembelajaran di kelas, sebagai agen pembelajar, guru harus mampu menyajikan proses pembelajaran dengan melibatkan langsung peran serta peserta didik secara aktif (student centre), untuk itulah guru harus menguasai dan mampu memanfaatkan berbagai model pembelajaran dalam implementasinya di kelas guna menerapkan pendekatan PAIKEM. Pada umumnya pembelajaran sudah mulai bergeser kearah student centered, tetapi sebagian besar guru SMA di wilayah kepengawasan Kabupaten Lombok Barat belum memahami bahwa model pembelajaran sangat berpengaruh terhadap kualitas pembelajaran sehingga belum mengembangkan model-model pembelajaran yang inovatif. Hasil observasi awal terhadap RPP dan proses pembelajaran/kegiatan belajar mengajar (KBM) menunjukkan bahwa pembelajaran masih berlangsung secara konvensional/cenderung menggunakan metode ceramah serta berpusat pada guru/teacher centered dan belum menunjukkan digunakannya model pembelajaran. Oleh karena itu dalam pelaksanaan tugasnya perlu pembinaan oleh pengawas sekolah/supervisor melalui supervisi akademik yang difokuskan terhadap materi tersebut, guna perbaikan dan peningkatan mutu pembelajaran yang pada gilirannya nanti berdampak terhadap peningkatan hasil belajar siswa. Penelitian ini bertujuan untuk menjajaki: (1) Apakah model pembelajaran terintegrasi dalam RPP dapat digunakan untuk meningkatkan proses pembelajaran kimia di SMA wilayah kepengawasan kabupaten Lombok Barat. (2) Bagaimana tingkat keefektifan penerapan model pembelajaran terintegrasi dalam RPP dapat digunakan untuk meningkatkan proses pembelajaran kimia di SMA wilayah kepengawasan kabupaten Lombok Barat. Metode penelitian ini adalah metode Penelitian Tindakan Sekolah (PTS) yang mengacu pada model Kurt Lewin. Prosedur penelitiannya dilakukan secara siklikal, yakni satu siklus dimulai dari perencanaan, pelaksanaan tindakan, pengamatan, dan refleksi. PTS ini dilaksanakan dalam 2 (dua) siklus, yang ditujukan untuk meningkatkan proses pembelajaran kimia di SMA wilayah kepengawasan, bertujuan untuk mencari pemecahan permasalahan nyata yang terjadi di sekolah-sekolah, sekaligus mencari jawaban ilmiah bagaimana masalah-masalah tersebut bisa dipecahkan melalui suatu tindakan perbaikan. Data hasil penelitian dikumpulkan melalui teknik observasi. Data dianalisis menggunakan teknik analisis deskriptif, sedangkan untuk menjelaskan fenomena hasil penelitian yang bersifat hitungan dan persentase digunakan teknik statistik deskriptif. Hasil penelitian menunjukkan: (1) Model pembelajaran terintegrasi dalam RPP dapat digunakan untuk meningkatkan proses pembelajaran kimia di SMA wilayah kepengawasan kabupaten Lombok Barat. (2) Tingkat keefektifan penerapan model pembelajaran terintegrasi dalam RPP digunakan untuk meningkatkan proses pembelajaran kimia di SMA wilayah kepengawasan kabupaten Lombok Barat, yakni terjadi peningkatan persentase terhadap observasi awal sebesar: (a) Rata-rata hasil penilaian RPP pada siklus I = 16,27% dan pada siklus II = 22,90%; (b) Rata-rata hasil penilaian KBM pada siklus I = 22,17% dan pada siklus II = 30,32%; (c) Rata-rata Hasil Belajar Siswa pada siklus I = 11,06% dan pada siklus II = 29,37%.Kata kunci: Model Pembelajaran, RPP, Proses Pembelajaran Kimia.ÃÂ Abstract: The task is to supervise the superintendent of academic and managerial, coaching and professional training of teachers, and the evaluation of the results of the implementation of the monitoring program. Teachers have an important role in classroom learning, as an agent of learners, teachers must be able to serve the learning process by involving the direct participation of active learners (student center), for which teachers must master and be able to utilize a variety of learning models for their implementation in the classroom to apply PAIKEM approach. In general, the learning has begun to shift towards student centered, but the majority of high school teachers in the area of supervisory West Lombok do not understand that the learning model affects the quality of learning so as not to develop models of innovative learning. The results of preliminary observations of the Lesson Plan and the process of learning/teaching activity show that learning is still going on in the conventional/tend to use this method as well as teacher-centered lecture/teacher centered and have demonstrated the use of learning models. Therefore, in the performance of its duties necessary guidance by school inspectors/supervisors through academic supervision was focused on the material, in order to repair and improve the quality of learning which in turn have an impact on improving student learning outcomes. This study aims to explore: (1) Is the Lesson Plan integrated learning model can be used to enhance learning in high school chemistry supervisory areas of West Lombok district. (2) How is the effectiveness of applying the RPP integrated learning model can be used to enhance learning in high school chemistry supervisory areas of West Lombok district. This research method is a method of Action Research School (ARS), which refers to the model of Kurt Lewin. Research procedures performed cyclical, ie, one cycle starting from planning, action, observation, and reflection. ARS was implemented in 2 (two) cycles, which aimed to improve the learning process chemistry in high school supervisory area, aiming to find solutions to real problems that occur in schools, as well as find a scientific answer to how these problems can be solved by a corrective action. The data were collected through observation techniques. Data were analyzed using descriptive analysis techniques, whereas to explain the phenomenon that is a matter of research results and the percentage used descriptive statistical techniques. The results showed: (1) learning model integrated in the lesson plan can be used to enhance learning in high school chemistry supervisory areas of West Lombok district. (2) The effectiveness of applying the Lesson Plan integrated learning model is used to enhance the learning process chemistry in high school supervisory areas of West Lombok regency, namely an increase in the percentage of the initial observations of: (a) Average Lesson Plan assessment cycle I = 16.27 % and on the second cycle = 22.90%, (b) Average of Learning Activity assessment cycle I = 22.17% and on the second cycle = 30.32%, (c) Average of Student Learning Results on the first cycle = 11.06% and on the second cycle = 29.37%.Keywords: Model of Learning, Lesson Plans, Learning Process of Chemistry.

PENCEMARAN UDARA AKIBAT PENGOLAHAN BATU KAPUR DI DUSUN OPEN DESA MANGKUNG PRAYA BARAT Syarifa Wahidah Al Idrus
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Penelitian ini dilaksanakan di dusun open desa Mangkung pada bulan April 2013 dengan tujuan untuk: (1) mendeskripsikan pencemaran udara di dusun Open desa Mangkung, (2) mengetahui dampak penambangan batu kapur terhadap lingkungan dan masyarakat, (3) mengetahui cara yang tepat mengatasi pencemaran udara di dusun Open desa Mangkung. Berkenaan dengan itu penelitian dirancang sebagai penelitian deskriptif, Data dikumpulkan melalui observasi dan wawancara yang selanjutnya dianalisis dengan menggunakan metode deskriptitif kualitatif. Hasil penelitian menunjukkan bahwa (1) kegiatan penambangan batu kapur di dusun open desa mangkung menyebabkan pencemaran udara berupa pencemaran partikel debu dan gas karbon monoksida (CO), (2) dampak penambangan batu kapur tersebut adalah lingkungan menjadi tercemar dan masyarakat mengalmi ISPA cukup tinggi, (3) beberapa pendekatan yang bisa dilakukan untuk mengatasi pencemaran di dusun Open desa Mangkung adalah pendekatan institusi, pendekatan pelayanan kesehatan, pendekatan social ekonomi dan pendekatan teknologi.Kata kunci: Karakteristik Kegiatan Penambangan, Dampak Lingkungan, Upaya PerbaikanÃÂ Abstract:This research was conducted in Open Mangkung village aimed for: (1) describing the air pollution in Open Mangkung village, (2) knowing the impact of limestone mining to the environment and society, (3) knowing the suitable way to solve the air pollution in Open Mangkung village. Owing to this, this research is designed as descriptive research. The data was collected through observation and interview which was then analyzed using descriptive qualitative method. The result of the research shows that (1) the limestone mining in Open Mangkung village has caused the air pollution in the form of dust particle and carbon monoxide gas (CO), (2) the impact of limestone mining has polluted the environment which evokes the people get RFA (Rhino Faringitis Acute), (3) several approach that may be done to solve the pollution in Open Mangkung are institutional approach, medical service approach, social economic approach and technology approach.Keywords: the characteristic of the mining activity, the environment impact, recovery efforts.

PENGARUH PENAMBAHAN ENZIM TANASE TERHADAP SIFAT KIMIA SIRUP BUAH SEMU JAMBU METE (ANACARDIUM OCCIDENTALE LINN) Yunita Arian Sani Anwar
Jurnal Pijar Mipa Vol. 8 No. 2 (2013): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Abstrak: Sebelumnya telah dihasilkan enzim tanase dari Aspergillus niger menggunakan media padat.Pada penelitian ini, enzim tanase yang dihasilkan diaplikasikan pada sirup buah jambu mete.ÃÂ Penelitian ini bertujuan untuk mengetahui pengaruh penambahan enzim tanase terhadap sifat sirup buah jambu. Konsentrasi enzim yang digunakan divariasi 0%; 0,02%; 0,04%; 0,06%; 0,08% dan 0,1%. Hasil yang diperoleh dibandingkan dengan sifat kimia sirup buah jambu mete yang diberi perlakuan dengan suhu tinggi (100oC). Hasil penelitian menunjukkan bahwa penambahan enzim tanase sebesar 0,1% memberikan hasil yang paling baik untuk menurunkan kandungan tannin jika dibandingkan dengan penggunaan suhu tinggi. Kadar glukosa mengalami peningkatan yang signifikan untuk sirup yang diberi perlakuan dengan suhu tinggi. Hasil analisis vitamin C, protein dan pH tidak mengalami perubahan pada sirup buah jambu mete yang diberi perlakuan dengan enzim tanase. Penggunaan suhu tinggi menyebabkan penurunan kadar vitamin C dan protein secara signifikan.Kata Kunci : Buah Semu Jambu Mete, Enzim Tanase, TaninÃÂ Abstract: We previously produced tannase from Aspergillus niger using solid state medium. In the present study the enzyme usedÃÂ cashew apple juice. The aim this research was to know effect of tannase on chemical parameters of cashew apple juice. The concentration of tannase used was 0%;0.02%; 0.04%; 0.06%; 0.08% and 0.1% (v/v) and this result compared with high temperature treatment (100 oC). Cashew apple juice with tannase treatment resulted in reduced of tannin and increased of glucose and the best result was obtained at the concentration tannase 0,01% (v/v). Tannase treatment not affect ascorbic acid, pH, and protein but high temperature treatment can reduce ascorbic acid content and protein.Key words: cashew apple juice, tannase, tannin

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Saprizal Hadisaputra

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rizal@unram.ac.id

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+6287738066422

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pijarmipa@unram.ac.id

Editorial Address
Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia

Location
Kota mataram,

Nusa tenggara barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Saprizal Hadisaputra

Contact Email rizal@unram.ac.id

Phone +6287738066422

Journal Mail Official pijarmipa@unram.ac.id

Editorial Address Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia

Location Kota mataram, Nusa tenggara barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Saprizal Hadisaputra

Contact Email
rizal@unram.ac.id

Phone
+6287738066422

Journal Mail Official
pijarmipa@unram.ac.id

Editorial Address
Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia

Location
Kota mataram,

Nusa tenggara barat

INDONESIA