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Jurnal Pilar Sains
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics
Arjuna Subject : -
Articles 8 Documents
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Search results for , issue " Vol 7, No 2 (2008)" : 8 Documents clear
PEMBERDAYAAN KETERAMPILAN KOGNITIF MELALUI PENDEKATAN KONTEKSTUAL DALAM TATANAN PEMBELAJARAN KOOPERATIF TIPE TAI PADA SISWA SMPN 6 PEKANBARU Ritonga, Zulfan
Jurnal Pilar Sains Vol 7, No 2 (2008)
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Class action research aims to describe your activities of teachers and students, learning management,cognitive skills of students. Research methods to the model Kemmis and Mc.Taggart, with thecontextual approach in the framework of cooperative learning TAI type. Implementation steps includeplanning, action, and reflection upon the actions carried out as many as two-cycle. Results of researchshowed the activities of teachers and students considered good, good management of your learning,and cognitive skills of students was increasing from one cycle and two cycles. As well as studentresponses to the implementation of learning is good. thus the application of the contextual approach inthe framework of cooperative TAI type can be one of the alternative learning materials in the basicfractions of seventh- four in SMPN 6 Pekanbaru.Key Words : Cognitive Skills, TAI
PENGARUH PEMBELAJARAN KOOPERATIF DENGAN BANTUAN LABORATORIUM MINI MELALUI PENDEKATAN TEORI BRUNER TERHADAP HASIL BELAJAR MATEMATIKA SISWA SEKOLAH DASAR 013 TAMPAN PEKANBARU Anggraini, Rini Dian
Jurnal Pilar Sains Vol 7, No 2 (2008)
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The low of achievement students in learning mathematics is still a problem which has not been solvedyet. This is because of various factors like the designed of learning strategies. The teachers do notconsider the stages of students’ mental development and neither facilitate with the optimal learningfacilities. Beside the school facilities have not been sufficient for teaching geometry. These factors arecauses that materials delivery is not appropriate with students’ ability; therefore, we should do effortfor the improvement. This research is the implementation of cooperative learning with the aid the minilaboratory through Bruner’s theory. The aim of this research is to know the influence of cooperativelearning with the aid of mini laboratory through Bruner’s theory which is related with the entry abilityof the students. This research was conducted at the second semester of the 3rd of SD 013 TampanPekanbaru in academic year 2007/2008. The research design is treatment by block design (2x2), andthe sampel is 77 pupils. The data was gain from the result of learning which had been tried out forvalidity and reliability. The result of the data analysis indicates: (1) The cooperative learning methodwith the aid of mini laboratory through Bruner’s theory is more effective to increase the students’achievement in mathematics than the conventional leaning model;(2) The cooperative learning methodwith the aid of mini laboratory through Bruner’s theory is more effective to increase the studentsachievement in mathematics with high entry ability than the conventional learning model; (3) Thecooperative learning method with the aid of mini laboratory through Bruner’s theory is more effectiveto increase the students achievement in mathematics with low entry ability than the conventionallearning model; (4) There is no significant interaction between learning method and the level ofstudents’ ability to the result of learning. The result of this research indicate that there is an influencein using the cooperative learning method with the aid of the mini laboratory through Bruner’s theoryon student achievement in mathematics with different level of student entry ability.Keyword: Cooperative Learning, Mini Laboratory, Bruner’s theory
PENGGUNAAN METODE JARINGAN NEURAL PERCEPTRON UNTUK MENGENAL POLA KARAKTER KAPITAL Bahri, Zaiful
Jurnal Pilar Sains Vol 7, No 2 (2008)
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Pemodelan dengan jaringan neural merupakan pembelajran dan penyesuaian dari suatu objek.Metode perceptron merupakan metode pembelajaran dengan pengawasan dalam sistem jaringan syaraftiruan. Dalam mengenal pola beberapa huruf diperlukan beberapa neuron untuk membedakannya.Neuron-neuron akan menghasilkan nilai kombinasi yang digunakan untuk mengenal pola huruf-huruftersebut. Dalam tulisan ini akan dibahas mengenal pola huruf kapital A, B, C, D dan E. MATLABdigunakan untuk mensimulasikan proses pembelajaran menggunakan metode jaringan neural perceptron.Kata-kunci : Jaringan syaraf, Perceptron, Model, Pengenalan Pola, Pembelajaran
ESTIMASI DAN UJI EKSAK KOMPONEN VARIANSI PADA MODEL RANDOM KLASIFIKASI DUA ARAH DENGAN DATA TIDAK SEIMBANG Efendi, Rustam
Jurnal Pilar Sains Vol 7, No 2 (2008)
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This manuscript dicusses about the model equation yijk     i   j  ( ) ij  eijk ; i  1, 2,  , r ;whereis a constant andand variances i ,  j , ( ) ij , eijkj  1, 2,  , s ; k  1, 2,  , nij ; nij  1are distributed independently and normally with zero means2222  ,   ,   ,  e , respectively. From this model is given estimation and exact test of the itsvariance components.Key Words: Unbalanced Data, Variance Components, and Testing Hypothesis.
DINAMIKA KEPADATAN DAN DISTRIBUSI VERTIKAL ARTHROPODA TANAH PADA KAWASAN HUTAN TANAMAN INDUSTRI
Jurnal Pilar Sains Vol 7, No 2 (2008)
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Have been conducted a research to find out the Dynamic of the Density and VertikalDistribution of soil Arthropods on the deep of the Forest Industry Cultivation Area. Theobservation point sampling determining was conducted bassed on sampling randomized purposivethe is on the HTI area 0, 2, 4, and 6 year of plant age with each of the area 100x100m widht. Oneach station is determined by 3 quatation randomized with 3 times removal of land sampel. Thephysic-chemistry parameter that had been observed including pH, temperature, soil water contentand soil of organic content, mean while the biology parameter including density and index ofdistribution. The result showed the individu that had been found that is 11 ordo, 19 species with880 individu total. The dominant of Arthropods group is from the collembola species and thelowest is Araneae. The Dynamic highest density are on the 6 year of plant age 0,170 cm 3/speciesand the lowest on 0 year 0,054 cm3/species where as the number of density is higher on the Astratum rather than B stratum and C stratum. Vertical distribution showed only on the 0 year isdistributed be in cluster otherwise on the 2, 4, and 6 year age are distributed be spread evenly.Key word : Arthropods, Density,Distribution vertical, Forest Industry Cultivation .
EFEKTIVITAS PEMBELAJARAN FISIKA DENGAN PENERAPAN PENDEKATAN CTL TERHADAP KETERAMPILAN PROSES IPA DAN PSIKOMOTOR SISWA KELAS VI SDN 011 KERUMUTAN
Jurnal Pilar Sains Vol 7, No 2 (2008)
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The purpose of this research is to know the effectiveness of physic learning through contextual teaching andlearning approach in the result of student science process skill and psychomotor skill achievement. Thesubject of this research is 30 students of SDN 011 Kerumutan in period 2007/2008. The chosen of mainsubject is Heat Transfer. Data is collected by giving the piper and pencil test and the applicative psychomotortest after finishing the subject. The data of this result is analyzed descriptively with consists of: student’sachievement and learning completeness. The result analysis to the science process skill showed the student’sachievement is categorized good, material completeness is categorized not complete and learningcompleteness is categorized complete. The result analysis to the psychomotor skill showed the student’sachievement is categorized good, material and learning completeness is categorized not complete. So, physiclearning by using contextual teaching and learning approach is clarified effectiveless for science processskill and psychomotor skill achievement of sixth year students at SDN 011 Kerumutan, Pelalawan district.Key words: contextual teaching and learning, psychomotor skill, science process skill
PERILAKU ASAM HIDROKSI BENZOAT DAN ASAM P- KUMARAT PADA TANAH GAMBUT YANG DIBERI FLY ASH SERTA KAITANNYA DENGAN UNSUR KALSIUM DAN MAGNESIUM Nurdin, Hazli; Suyani, Hamzar; Prasetyo, Teguh Budi
Jurnal Pilar Sains Vol 7, No 2 (2008)
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Penelitian ini ditujukan untuk mempelajari perilaku asam fenolat pada tanah gambut danbagaimana kaitannya dengan unsur kalsium dan magnesium. Asam fenolat yang diteliti pada penelitian iniadalah asam hidroksi benzoat dan asam p- kumarat, Sampel yang digunakan tanah gambut dari daerahRimbo Panjang . Km 18 dari kota Pekanbaru.Hasil yang diperoleh dari penelitian ini adalah pemberian fly ash terhadap tanah gambut ternyatadapat menurunkan kandungan asam hidroksi benzoate dari 27,42 ppm ke 0,20 ppm; asam p-kumarat 17,22ppm ke 0,11 ppm serta dapat meningkatkan pH dari 3,5 ke 6,47 , ketersediaan hara kalsium 595,24 ppmke 2569,36 ppm dan magnesium dari 365,05 ppm ke 469,45 ppm pada tanah gambut.Penurunan kandungan asam fenolat sebagai akibat pemberian fly ash dapat meningkatkanketersediaan unsur hara kalsium ( Ca) dan Magnesium.Key word : Gambut, fly ash. Asam fenolat,kalsium, magnesium
PENENTUAN SUMBER GAS OKSIGEN UNTUK PERCOBAAN VOLUME MOLAR GAS Rery, Usman
Jurnal Pilar Sains Vol 7, No 2 (2008)
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Based on the result of research have found that the better gas used in experiment the molarvolume of gas is oxygen than hydrogen or carbondioxide. From that research, the researcherwant to develop it into specific issue that “which the source of oxygen is better to determinethe molar volume of gas” to produce of the oxygen taht the molar volume resembled to themolar volume of ideal gas if measured at standard condition. Besides the problem mentinedabove, researcher also want to know how many substances are standard to use in theexperiment molar volume of gas and determine which instrument is better used from twodiffrent instruments, certainly a simple equipment, practical, easy to design and less ofmistakes in observation. So that the result will be accurate.Key Word : Determine, molar volume of gas

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