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All Journal CHEMISTRY PROGRESS Sainstek Jurnal Natur Indonesia Jurnal Pilar Sains Jurnal Inovasi Pendidikan Kimia Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Jurnal Teknologi Pertanian Proceeding 7th International Seminar on Regional Education Indonesian Journal of Chemical Science Jurnal Teknologi & Industri Hasil Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Maria Erna Kustyawati
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Industrial & Manufacturing Engineering Mathematics Physics

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Pembuatan dan Karakterisasi Biodiesel dan Crude palm Oil (CP0) dan Limbah Kondensat dengan Katalis NaOCH 3 Erna, Maria; Testiaty, Ety; Manik, Oskar M.
Jurnal Pilar Sains Vol 5, No 01 (2006)
Publisher : Jurnal Pilar Sains

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This research produced bi isel from Crude Pin 0 (çPQ) and ccdensate waste which their productionsincreased every year. Biodiesel was friendly to environment and it could be directly used on dieselengines. Biodiesel was produced with transesterification reaction between triglycerides and methanol,and it was added with catalyst of NaOCH3. This research resulted that biodiesel produced from CPOapproached standard characteristic: density of 0.8613 gr/nil and viscosity of 5.4474 cP. Then,biodiesel produced from mixture between condensate waste and CPO was far enough from standardcharacteristic.
PEMBERIAN TUGAS MEMBUAT RINGKASAN SEBELUM DAN SETELAH PEMBELAJARAN UNTUK MENCAPAI KETUNTASAN BELAJAR MAHASISWA PADA MATA KULIAH KIMIA FISIKA I Erna, Maria; Rery, R. Usman
Jurnal Pilar Sains Vol 6, No 02 (2007)
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Evaluation of students learning result at department of Chemistry educationFKIP Riau University on 1st Physical Chemistry subject is not reliable yet. It occursbecause students are not ready in lecture caused by less knowledge. It is necessary todevelop ad improve learning quality on this subject by giving task of doing summarybefore and after lesson. Subject of this research is student in 1st Physical Chemistry classon even semester 2006/2008. There are 32 student in this class. From summary sheetsbefore lesson, almost of all student make their summary in order basic theory. Whereasfrom summary sheets after lesson, student just write what was has been taught by lectureand not know much. Observation result as long as learning process shows that studenttrend are active. Development result shows 28 student achieve known degree ≥ 65% and4 students achieve know degree ≤ 65%. This result also shows that learning reliableclassically is of 87,5 %.Keywords: Reliable, Physical Chemistry, Summary
Modifikasi Amilosa dari Pati Tapioka dan Garut Menjadi Amilosa Asetat Erna, Maria; Eryanti, Yum; Dahliaty, Andi
Jurnal Pilar Sains Vol 7, No 1 (2008)
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It has been done modification of amylose from starch tapioca and garut and then it has been changed to beamylose acetate which is degradable biopolymer. Amylose was separated from starch by method of butanolas complexing on high temperature and pressure. The yielded amylose was then acetylated by anhydrideacetate acid in glacial acetate acid solution with catalyst of concentrated sulfuric acid. Characterization wascarried out based on spectrometry of Fourier Transform Infrared Spectroscopy (FTIR). The result of amilosaspectrum showed that peak of group -OH was on 3437.25 cm and amilosa acetate spectrum had peak on1749.91 cm and it proved that acetyl reaction occurred. In this research, modification of starch tapioca wassuccessful but starch garut unsuccessful.Key words : amylose, acetate amylose.
PENERAPAN STRATEGI PEMBELAJARAN AKTIF FORMASI REGU TEMBAK UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN LAJU REAKSI DI KELAS XI IPA SMA NEGERI 4 PEKANBARU Irya, Syahrina; Erna, Maria; ', Rasmiwetti
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 1 (2016): Wisuda Februari 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract : Has made the application of active learning strategy of Firing Line to improve student achievement on the topic of Reaction Rate in class XI IPA SMAN 4 Pekanbaru. The research is a type of experiment research with pretest-posttest design. The samples of this research were the students of class XI IPA3 as the experimental class and students of class XI IPA2 as the control class. Experimental class is a class that is applied to active learning strategy of Firing Line while the control class was not. Data analysis technique used is the t-test. Based on data analysis of data obtained tcount> ttable is 2,53>1,67, means that the application of active learning strategy of Firing Line can improve student learning achievement on the topic of Reaction Rate in class XI SMAN 4 Pekanbaru. The category improvement of student achievement at experiment class was high category with N-gain normalized is 0,78. Meanwhile, the category improvement of student achievement in control class was medium category with N-gain normalized is 0,68.Keywords: Firing Line, Active Learning, Achievement, Reaction Rate.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF LISTENING TEAM UNTUK MENCAPAI KETUNTASAN BELAJAR SISWA PADA POKOK BAHASAN KESETIMBANGAN KIMIA DI KELAS XI IPA SMA NEGERI 12 PEKANBARU ', Nur Aini; Erna, Maria; ', Rini
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 1 (2016): Wisuda Februari 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract : Research has been done to get student’s mastery learning with by using model Cooperative Listening Team inclass XI Science SMAN 12 Pekanbaru. This research is pra-experimentre search with one-shot study case design. The sampel use random from the four class XI Science. This research was conducted in class XI Science IPA 4, the for two month’s from november to desember 2014. Data analysis technique by using five formula mastery: mastery individual learning objectives (KTPI), mastery each of the learning objectives (KMTP), classical mastery learning objectives (KTPK), mastery learning of individual (KI), mastery learning classical (CBC). Research for the final show that classical mastery learning objectives 80% and mastery learning classical is 91,667%. It’s means that the application of cooperative learning model of Listening Team can achieve student’s mastery learning on the subject of chemical equiblirium inclass XI IPA SMAN 12 Pekanbaru.Key Words: Listening Team, mastery learning, chemical equilibrium
STUDI KOMPARASI PRESTASI BELAJAR SISWA MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE TSTS DAN TPS PADA POKOK BAHASAN STRUKTUR ATOM DAN SISTEM PERIODIK UNSUR DI KELAS XI IPA SMA NEGERI 5 PEKANBARU Hasanah, Fitriatul; Erna, Maria; Haryati, Sri
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 2 (2016): Wisuda Oktober 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: Has conducted a comparative study to find out significant differences in student’s achievement and to determine student’s achievement higher between implementation of cooperative learning models TSTS and TPS on learning topic of Atomic Structure and Elements of the Periodic System at SMAN 5 Pekanbaru. This is an true experimental research with Design Randomized Control Group Pretest-Posttest. The research sample consisted of 2 experimental classes with the implementation of cooperative learning models TSTS and TPS, and 1 control class. Research data analysis using ANOVA one way followed by Scheffe multiple comparison test. Based on the results of data processing by ANOVA one way obtained that Fcount > Ftable is 15,37 > 3,08 which shows that there are significant differences in student achievement between the experimental class TSTS, TPS, and control class. The results of data processing by Scheffe multiple comparison test was obtained the difference between the average experimental class of TSTS and TPS exceeded the values Scheffe is 4,79 > 4,68 and an average experimental class of TSTS higher than average experimental class of TPS is 54,1 > 49,31 which shows that there are significant differences in student’s achievement between implementation of cooperative learning models TSTS and TPS. Student’s achievement with implementation of cooperative learning models TSTS higher than TPS on learning topic of Atomic Structure and Elements of the Periodic System in class XI IPA SMAN 5 Pekanbaru.Keywords: TSTS, TPS, Learning Achievement, Atomic Structure and Elements of the Periodic System
INCREASING PEDAGOGICAL COMPETENCE OF ELEMENTARY SCHOOL TEACHERS’ THROUGH LESSON STUDY IN TAMBUSAI DISTRICT ROKAN HULU REGENCY Erna, Maria; Holiwarni, Betty
Proceeding 7th International Seminar on Regional Education Vol 3 (2015): Educational Community and Cultural Diversit
Publisher : Proceeding 7th International Seminar on Regional Education

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AbstractImprovement of pedagogical competence of Elementary School teachers in Tambusai district, Rokan Hulu regency through the implementation of lesson study (LS) has been performed. Improvement of pedagogical competence of teachers is important to do continously to increase the quality of the learning process. This study is an observational study consisted of two steps, namely socialization and the application treaning of LS. Subjects of the research were elementary school teachers in the Tambusai, Rokan Hulu that consist of 39 teachers. Instrument and data collecting technique of the research is observation and questionnaire. LS socialization method is done by discussion of information. Training of LS has done by applying of three steps: Design lesson {plan), an open lesson (do) and reflection (see). Pedagogical competence that has been analyzed in this study is the assessment of learning implementation plan and the implementation process of learning. The results show that score ratings from learning implementation plan and implementation process of learning made improvement which is from the category K (Less) become C (Enough).Keywords: Do, Lesson Study, Pedagogic Competence, Plan, See
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF ROTATING TRIO EXCHANGE (RTE) UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN HIDROLISIS GARAM DI KELAS XI IPA SMA N 9 PEKANBARU Astuti, Rini; Erna, Maria; ', Abdullah
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 2 (2016): Wisuda Oktober 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: The implementation of cooperative learning model Rotating Trio Exchange (RTE) has been conducted to determine the improve in student achievement and improve learning achievement category on the subject of salt hydrolysis in class XI SMA N 9 Pekanbaru. Forms of this research is experimental research design with pretest - posttest. Time data collection between February 8 to April 13, 2016. The sample consisted of two classes, grade XI IPA 3 as the control class and class XI IPA 5 as an experimental class selected at random. Grades given experimental treatment with the application of Rotating Trio Exchange (RTE), while the control class are given learning lecture method. Data analysis technique used is the t-test. Based on the analysis of data processing obtained t¬hitung> ttable is 4.94> 1.67 means that the implementation of cooperative learning model Rotating Trio Exchange (RTE) can improve student achievement on the subject of salt hydrolysis in class XI SMA N 9 Pekanbaru. Category increase student achievement in the classroom experiment with a normalized gain value (N-gain) of 0.91 is included in the high category.Keywords: Rotating Trio Cooperative Exchange (RTE), Achievement, Hydrolysis Salt
PENERAPAN MODEL PEMBELAJARAN LEARNING CYCLE 7E UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN ASAM-BASA DI KELAS XI IPA SMA N 5 PEKANBARU ', Lenni; Erna, Maria; ', Erviyenni
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 2 (2016): Wisuda Oktober 2016
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Abstract:This research aims to know the improve of students learning achievement by using Learning Cycle 7E model on the topic of the Acid-Base of Elements in class XI IPA senior high school (SMAN) 5 Pekanbaru. This research was experimental research with pretest-postest design. The sample of this research were students of class XI IPA 1 as the experimental research and students of class XI IPA 2 as a control class that has been randomly selected after a test of normally and homogenity test. Experiment class is a class that is applied Learning Cycle 7E model while the control class was not. The analysis techniques consist of 3 techniques that are normality test was used Liliefors test to verify data is normally distributed, homogeneity test was used variance test and t-test to see same ability learning of samples and hypothesis test was used t-test to validate the hypothesis. Based on analysis of the data obtained tcount> ttable is 2,32>1,67, it is mean that the implementation of Learning Cycle 7E model can improved students learning achievement on the topic of the Acid-Base of Elements in class XI IPA senior high school (SMAN) 5 Pekanbaru. Category improve student achievment in the classroom experiment with a normalized gain value (N-gain) of 0,83 is included in the high category.Keywords: Learning Cycle 7E, Learning Achievement, Acid-Base
PENGEMBANGAN LEMBAR KEGIATAN PESERTA DIDIK ( LKPD ) BERBASIS SRTUCTURED NUMBERED HEADS PADA POKOK BAHASAN KELARUTAN DAN HASIL KALI KELARUTAN (Ksp) ', Ristiana; Erna, Maria; ', Erviyenni
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 2 (2016): Wisuda Oktober 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract :The student activities sheet based on structured numbered heads for chemistry grade XI senior high school in solubilty and solubility product materials has been developed. Method of this research is Research and Development (R & D). The instruments of this research are questioners which are given to the validators. There are three validators, two of validators is lecturer in chemistry university of riau and one validator are teachers of SMAN 12 Pekanbaru. The result of this research shows the validity of student participant exercise sheet is 3,56 or 89 %, and category of validity is very high. Based on the result analysis can be concluded that the learning device consist of student activities sheet based on structured numbered heads for chemistry grade XI senior high school in solubilty and solubility product materials has been valid and proper.Keywords: development, SNH, validation
Co-Authors ', Abdullah ', Erviyenni ', Lenni ', Nur Aini ', Rasmiwetti ', Rini ', Ristiana Admin Alif Andi Dahliaty Azwendra, Yosi Betty Holiwarni Dewi Sartika Dyah Putri Larassati Elva Yasmi Elva Yasmi Amran, Elva Yasmi Emriadi - Ety Testiaty Fitriani, Wahyu Fitriatul Hasanah, Fitriatul Hestivik, Chelsi Irnov, Masithah Jimmi Copriady Johni Azmi marcella, Selly Marlisa, Lani Mohd Jain Noordin Mursidin . Novizal, Roni Nuzuriah, Nuzuriah Oskar M. Manik R. Usman Rery Rasmiwetti Rasmiwetti, Rasmiwetti Rini Astuti RINI RINI Roza Linda Samsul Rizal Sri Haryati suharyono AS Susilawati, Susilawati Syahrina Irya, Syahrina Syarifah Syarifah, Syarifah Syukri Arief Yeni Yulia Sari, Yeni Yulia Yum Eryanti