Jurnal Pendidikan Matematika dan IPA
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IMPLEMENTASI PEMBELAJARAN FISIKA MELALUI PEMROSESAN TOP DOWN TERHADAP HASIL BELAJAR FISIKA SISWA SMA KELAS X
Full text linkThis paper describes the results of learning physics that begins with the complex questions that require integration of multiple knowledge to resolve the question. In the learning process, students were trained to plan for a settlement of the problem by first identifying the required amount of physical quantities. This learning guided students to learn according to their needs in solving the problem, in this case using a top down approach to processing. This learning involved student’s assimilation and accommodation in planning and solving problem involving both, the students will be motivated to participate in the learning process. Physics student learning outcomes obtained after following study at the high category, which showed that not only motivated to follow the lesson, but also they able to achieve a high score Keywords: top down approach, physics achievemen
CLASSROOM ACTION RESEARCH: PENERAPAN STRATEGI BELAJAR NOTE-TAKING, DISCUSSION, REFLECTIVE (NDR) UNTUK MENINGKATKAN HASIL BELAJAR MAHASISWA IPA
Full text linkAbstractOne of the difficulties of science students is learning abstract topics, such as Topic of Atom, Ion, and Molecule. This study aims to solve the difficulty using a learning strategy of Note-Taking, Discussion, Reflective (NDR). Specifically, the purpose of this study is to implement the NDR strategy for increasing students' learning outcomes. The research design is classroom action research. Methods of data collection include observation, tests, and interviews. The results of the study indicate that the implementation of Note taking-Discussion-Reflective strategy can increase the learning outcomes through the implementation of 2 research cycles where in each cycle there are three stages, namely, planning, action, and reflection. The average scores increased from cycle 1 to cycle 2 by 4.2% and a minimum score of completeness of 75 has been achieved in cycle 2. The implementation of learning was at a good and excellent level during cycles 1 and 2. In addition, there were four student's positive response to the implementation of NDR strategy, that is related to discussion activities, note-taking, learning opportunities, and working in groups.Keywords: classroom action research, NDR strategy, learning outcome.
PENERAPAN METODE EKSPERIMEN BERBANTUAN SOFTWARE PhET PADA MATERI LISTRIK DINAMIS DITINJAU DARI KEMANDIRIAN BELAJAR SISWA KELAS X MAN SINTANG
Full text linkThis research aims to investigate the effects of expiremental learning using software PhET for student learning outcomes reviewed by learning independence student. The research is quasy experimental design, with factorial design 2x3. The research samples are the student of XA as the experimental class and the student of XB as the control class. The instruments were test for colecting data of learning outcome and the questionnaire for colecting data of learning indepence student. The result it can be concluded that: 1) There are difference of result of learning outcomes of implementation by experimental learning using software PhET and by conventional learning, the result of learning outcomes of implementation by experimental learning using software PhET better than of result of learning by conventional learning; 2) There are difference of result of learning outcomes in groups of students who have high, medium and low learning independence; 3) There is no interaction beetween learning methods and learning independence on student learning outcomes.Keywords: experimental learning, software PhET, learning outcomes, learning independence
PENYERAPAN ION LOGAM Pb(II) DARI LARUTAN MENGGUNAKAN SERBUK DAUN PURING (Codiaeum variegatum)
Full text linkThe adsorption of metal ion Pb(II) by croton leaf powder through the activation of hydrochloric acid (HCl) or chemical methods has been researched. The research aimed to determine the optimum condition of croton leaf powder as adsorbent by variation of contacting time (30, 60, 90 and 120 minutes) and the difference in mass of adsorbent (1; 2; 3 and 4 grams ). This research began with downsizing the size of croton leafs become to 100 mesh, then was performed chemical activation by soaking the croton leaf powder with 2 N HCl. The adsorption was conducted by contacting the adsorbent with a solution of the sample based on contacting time and mass of adsorbent, then analyzed by Atomic Absorption Spectrophotometer (AAS). The result showed that the optimum condition of adsorption was achieved at 4 grams adsorbent by contacting time in the 60 minutes with Pb(II) adsorbed 1,76 mg/L or 35,2 %. Based on this findings, we concluded that the increase in mass of adsorbent increased the adsorption power of metal ion Pb(II) by optimum contacting time. Keywords: adsorption, croton leaf powder, metal ion Pb(II
AUTHENTHIC PROBLEM BASED LEARNING (aPBL) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR SISWA
Full text linkThe purpose of physics learning at the school level is directed to develop the students’ thinking skill. This study aimed to improve the students’ critical thinking skill and students’ problem solving skill through aPBL (authenthic Problem Based Learning) learning. This study used classroom action research designed by Kemmis & Mc Taggart with the stages; problem identification, action planning, action, observation, and reflection. The research data were obtained in the form of the data of students’ problem-solving skill and critical thinking. The data in this research were analyzed qualitatively and quantitatively. The results showed that the application of aPBL (authentic Problem Based Learning) could improve the students' critical thinking skill and students’ problem solving skill. This improvement could be seen from the average score of critical thinking test and problem solving skill test that had been carried out. Keywords: aPBL, thinking skill, physic
PEMBELAJARAN IPA DENGAN PRAKTIKUM BERBASIS KONTEKS DAN LITERASI SAINS: PERSPEKTIF GURU SD DI SUKABUMI
Full text linkLaboratory activities are important of science learning at any level. At the elementary school lab work needs to be done in the context of daily life in order to training scientific literacy. This study aims to determine how the teacher's perspective on science teaching in primary schools in Sukabumi, West Java in the academic year 2015/2016. Research methods such as survey, data analysis quantitatively and qualitatively. Data collection used is a kuosioner sheet and interview guides to explore the teacher's perspective grade 4 and 5 primary school in implementing and understanding the context-based practicum. The results showed all the teachers (100%) stated the laboratory activities is important to be implemented, but most of the teachers (75%) stated the laboratory activities difficult to implemented. Teachers argued do not understand the practicum as an activity that can be done simply based on the context of everyday life in an effort to train science literacy (97%). The results of the elementary teacher's perspective is able to provide precise information about the condition of learning science as a material improvement regarding practical learning becomes more meaningful. Keywords: practical laboratory, context, Scientific Literac
MENINGKATKAN PARTISIPASI AKTIF MAHASISWA MELALUI LESSON STUDY PADA MATA KULIAH GEOMETRI RUANG
Full text linkThis research aims to increase the active participation of students through lesson study courses in the geometry of space subject. This type of research is a qualitative descriptive study with the subject is the class A students of the fourth semester in academic year 2015/2016 who are in the geometry of spaces subject with the number of students are 35. The instruments used are observation sheets of the students' active participation and documentation in the form of photographs and videos. The research procedures based on the stages of the lesson study were 3 cycles in which each cycle consisting of the activity plan, do, and see. This study shows that the results of learning process with the lesson study designed by the model lecturer and the observer can increase the students' active participation, particularly on the subjects of geometry of space. Keywords: active participation, lesson study, geometry of space
PENILAIAN SIKAP SISWA DALAM PEMBELAJARAN KIMIA MELALUI TEKNIK SELF ASSESSMENT DAN PEER ASSESSMENT
No full textKeikutsertaan siswa dalam penilaian sangat penting agar siswa memahami apa yang harus dilakukannya dalam belajar. Tujuan penelitian adalah untuk mengetahui penggunaan teknik self dan peer assessment dalam penilaian sikap pada pembelajaran kimia adalah efektif, dan respon guru serta siswa terhadap penggunaan self assessment dan peer assessment dalam pembelajaran kimia. Metode penelitian yang digunakan adalah metode eksperimen dengan alat pengumpul data berupa lembar self assessment dan peer assessment dalam bentuk kuesioner, serta wawancara. Hasil dari penelitian disimpulkan bahwa teknik self dan peer assessment efektif digunakan untuk menilai sikap siswa kelas X SMAN di Pontianak dalam mata pelajaran kimia. Respon guru serta siswa terhadap self assessment dan peer assessment menunjukkan kriteria baik, dengan perolehan skor rata-rata masing-masing sebesar 82,4 dan 80,5.Kata kunci: penilaian sikap, self assessment, peer assessment Student participation in assessment is essential so that students could understand what to do in learning. The purpose of this research is to find out the use of self assesment and peer assessment technique in attitude assessment on chemistry learning is effective, and teachers' and students' response to self assessment and peer assessment in chemistry learning. The research method used in this research is experimental with self assessment sheet and peer assessment sheet in the form of questionnaire and interview as the tool for collecting data. The result concluded that self assessment and peer assessment technique is effective to evaluate 10th grader students' attitudes of SMAN in Pontianak in chemistry subject. Teacher and student response to self assessment and peer assessment shows good criterion, with average score 82.4 and 80.5.Keywords: attitude assessment, self assessment, peer asessmen
PENERAPAN METODE PEMBELAJARAN TUTOR SEBAYA UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR SISWA DI SMA NEGERI 9 PONTIANAK
Full text linkAbstract This study aims to determine the improvement of student activity and learning outcomes in the system of linier equations of three variables using peer tutoring methods. Form of research is classroom action research consists of two cycles. Each cycle stage consists of planning, implementation, observation and reflection. Data collection was obtained by direct observation and test. Subject are students of class X (Sosial science) 1 SMAN 9 Pontianak. Based on the results of research, it can be concluded that learning by peer tutoring methods can improve the activity and learning outcomes of students. This is marked by the increase of student activity average starting from cycle I of 2.96 (good category) to 3.51 (very good category) in cycle II with percentage increase of 58.33%. There is an increase because the tutor understands the material and has a good emotional level towards his friend. In line with the ability possessed by the tutor and the ability of the teacher in managing the learning, there is a significant increase of the test results given. At the pre cycle the percentage of students' completeness of 26.32% increased by 28.95% to 55.26% in cycle I. Similarly in cycle II there was an increase in learning outcomes by 31.58% from 55.25% in cycle I to 86.84% in cycle II. In accordance with the research indicator that the success of this study is seen from 80% of students complete with minimal standart is 75, so this research is said to be successful and stopped in cycle II. Keywords : Peer Tutoring Methods, Activity, Learning Outcome
STRUKTUR KOMUNITAS PLANKTON PADA TIGA ZONA DENGAN VARIASI SALINITAS DI LABUAN CERMIN KECAMATAN BIDUK-BIDUK, KAB. BERAU, KALIMANTAN TIMUR
Full text linkThe aim of this study is to know about the quality of the waters from the structure of community and level of diversity plankton on three zones vertically with variety salinity on labuan cermin, at Biduk-biduk, Kalimantan Timur. The sample is taken by used method purposive sampling. The data acquired and showed in profusion plankton form, index abundance, index diversity, index evenness, and index dominance. The plankton has found during the research is 79 genera classified in 46 family and 13 class. The index abundant is on station A is the highest than the other station. On the average of index diversity of station A higher than station B and C in value about 2,3026. Index evenness revolve from 0,1870 to 0,8281. Index dominance revolve about 0,1171 to 0,7885. Keywords: Estuary, plankton, Labuan Cermin, diversity