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All Journal Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan CHEMPUBLISH JOURNAL Journal of Science Learning Proceedings of the 1st UR International Conference on Educational Sciences
Herdini Herdini
Jurusan Pendidikan MIPA, FKIP, Universitas Riau, Pekanbaru
Chemical Engineering, Chemistry & Bioengineering Chemistry Education

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PENERAPAN STRATEGI PEMBELAJARAN AKTIF FORMASI REGU TEMBAK UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN KESETIMBANGAN KIMIA DI KELAS XI IPA SMA NEGERI 10 PEKANBARU Oktariani, Diny; Herdini, Herdini; Haryati, Sri
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 : This research is about the application of active learning the firing line strategy that has conducted to know the increasing of student’s learning achievement on chemical equilibrium topic in class XI IPA in 10 Senior High School Pekanbaru. This research was experiment by design pretest and posttest. The sample determined randomly after doing normality and homogeneity test of 5 classes as population and then class XI IPA 5 as experiment class and XI IPA 4 as class group. The experiment group was applied by the application of active learning the firing line strategy. The data analysis technique used was t - test. Based on the tabulation of last data obtained tcount>ttable was 2,36 ≥ 1,67 meant that the application of active learning the firing line strategy could increase the student’s learning achievement on Solubility and Constanta Solubility Product topic in class XI IPA in 10 Senior High School Pekanbaru. Category increase the student’s learning achievement trhough active learning the firing line strategy on the subject of chemical equilibrium is a high category of 0,77.Keywords: The Firing Line, Active Learning, Achievement, Chemical Equilibirium
POTENSI TUMBUHAN AKAR TAPAK KUDA (BAUHINIA HULLETTII PRAIN) SEBAGAI SUMBER SENYAWA ANTIOKSIDAN Anwar, Lenny; Azmi, Jhon; Herdini, Herdini
CHEMPUBLISH JOURNAL Vol 1, No 1 (2015)
Publisher : Program Studi Kimia FST Universitas Jambi

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Abstract

Akar tapak kuda (Bauhinia hullettii Prain) merupakan tumbuhan  dari genus Bauhinia yang banyak dijumpai di Indonesia. Tumbuhan Bauhinia dilaporkan kaya akan senyawa flavonoid dan stilbenoid. Dua senyawa flavanon (1 dan 2) dan senyawa fenolik (3) terdapat pada kulit batang dan daun akar tapak kuda.Uji aktivitas antioksidan dari tiga senyawa terhadap radikal DPPH menunjukkan aktifitas antioksidan yang sangat kuat untuk senyawa 1 (5,7,3’,5’-tetrahidroksi flavanon)  dan  3 (asam 3,4,5-trihidroksibenzoat).  Senyawa 2 (5,7,4’-trihidroksi-6-metilflavanon) tidak aktif sebagai antioksidan dengan IC50>1000 µg/mL. Senyawa 1 dan 3 diketahui lebih aktif daripada Vitamin C dengan IC50 masing-masing 6,33 dan 1,26 µg/mL. Kata Kunci: Bauhinia hullettiiPrain, flavonoid, fenolik, aktivitas antioksidan
Interactive E-Module Development through Chemistry Magazine on Kvisoft Flipbook Maker Application for Chemistry Learning in Second Semester at Second Grade Senior High School Linda, Roza; Herdini, H; S, Ika Sulistya; Putra, Teja Pratama
Journal of Science Learning Vol 2, No 1 (2018): Journal of Science Learning
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jsl.v2i1.12933

Abstract

This research is an innovative development on teaching materials in order to intensify the movement of "Satu Guru Satu Buku (SAGUSABU)" and to prepare skillful media users on mastering Information and Communication Technologies (ICT). The resulting prototype is an interactive e-module named Chemistry Magazine which have two editions: ionic equilibrium and pH of buffer solution and solubility equilibrium. Applying research and development study design with Plomp model, assessment and suggestion by validator team on material substance aspect, instructional design, display (visual communication) and software utilization using validation sheet are in valid category. Percentage of legality score by media validator is 91.70% for ionic equilibrium and pH of buffer solution edition; and 94.18% for solubility equilibrium edition, whereas by material validator is 93.75% and 94.45% on each. Users response score rate through questionnaire for teachers and students on ionic equilibrium edition and pH of buffer solution edition are 87.08% and 88.45%; meanwhile 94,25% and 91,43%  are obtained from solubility equilibrium edition.
Effectiveness of Using Interactive Media Based on Lectora Inspire to Improving the Quality of Chemistry Science Learning in Second Grade at Junior High School/Madrasah Tsanawiyah Herdini, Herdini; Linda, Roza; Abdullah, Abdullah; Ramadhan, Ahmad Khairu
Proceedings of the UR International Conference on Educational Sciences 2018: Proceedings of the 2nd UR International Conference on Educational Sciences
Publisher : Proceedings of the UR International Conference on Educational Sciences

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This research is implementation of the results of development research in previous year. The aim is to investigate the effectiveness (impact) of using the valid and practical interactive media based on Lectora Inspireto the quality of Chemistry Science Learning in Junior High Schools/Madrasah Tsanawiyah (especially students’s activities and learning outcomes). The research is an experiment with randomized control group pretest-posttest design. To know the students’s learning outcomes by using right-hand t-test and to know their learning activities by using observation sheet. The samples were determined randomly after normality and homogeneity test. VIII-A-3 was experiment class and VIII-A-4 was control class in this research at MTs Dar El Hikmah Pekanbaru. The experimental class was treated by using of Lectora Inspiremedia while the control class was not. Based on data analysis’s results, obtained tct = 8,14 and ttable = 1,67 with α = 0,05, dk = 72. tct> ttable which is 8,14 > 1,67 means the using of Lectora Inspiremedia can improved the students’s learning outcomes. Beside that, the students’s learning activities in experimental class is in a very good range while in control class is in a good range.
PENERAPAN STRATEGI PEMBELAJARAN AKTIF GROUP TO GROUP EXCHANGE (GGE) UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA POKOK BAHASAN KESETIMBANGAN KIMIA DI KELAS XI IPA SMA NEGERI 11 PEKANBARU Nasution, Dessy Amalina; Copriady, Jimmi; Herdini, Herdini
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 5: Edisi 2 Juli-Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: Research on active learning strategy group to group exchange (GGE) has been implemented in SMAN 11 Pekanbaru. The research aimed to know the increase student’s achievement learning and the influence of GGE strategy on students achievement learning on the subject of Chemical Equilibrium in XI IPA SMAN 1 Pekanbaru. The type of research is experimental research with pretest-posttest design . XI IPA SMAN 11 Pekanbaru consisting of 3 classes performed normality and homgeneity test using prerequisite data so that obtained 2 randomly selected samples that is student in class XI IPA 2 as an experimental class and students in class XI IPA 3 as a control class. The experimental class is the class that applied GGE active learning strategy while the control class is not applied GGE active learning strategy.This research instrument is a quastion of chemical equilibrium that has been tested validation and reliability and obtained valid and reliable data as research instrument. The hypothesis testing using U Mann-Whitney test obtained z arithmetic > z table is 3.89> 1, 64, based on hypothesis testing concluded that the implementation of GGE active learning strategy can increase student achievement learning on the subject of chemical equilibrium in class XI IPA SMAN 11 Pekanbaru . The influence of GGE's active learning strategy on student achievement learning is 34.3%.Keywords : Chemical Equilibrium,Students Achievement, Group to Group Exchange (GGE)
PENERAPAN STRATEGI PEMBELAJARAN AKTIF TIPE INSTANT ASSESSMENT UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN KELARUTAN DAN HASIL KALI KELARUTAN DI KELAS XI IPA SMA NEGERI 1 KAMPAR Aldresti, Fitri; Miharty, Miharty; Herdini, Herdini
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: This research aims to increase student achievementon the subject ofsolubility and solubility productinclassXI IPA SMA N 1 Kampar. This research is a kind of experiment research with pretest-posttest design. The research was conducted in SMA N 1 Kampar.The samples of this research were the students of class Xl IPA 1 as the control class and students of class XI IPA 2 as the experimental class.Experimental class is a class that is applied active learning strategy instant assessment, while the control class was not. Data analysis technique used is the t-test. Based on analysis of data obtained tarithmetic> ttable is 2,49 > 1,67, means that the application of active learning strategy instant assessment can improve student achievement on the subject of solubility and solubility product constant in class XI Science SMAN 1 Kampar where the effect of an increase is 9,97%.Keywords :Active Learning Strategy Instant Assessment, Learning Achievement, and Solubility and Solubility Product Constant
ANALISIS BUTIR SOAL UJIAN SEMESTER GENAP PELAJARAN KIMIA KELAS XII MIA SMA NEGERI 1 TAPUNG TAHUN PELAJARAN 2016/2017 Sandra G, Cindy Eka; Rery, R. Usman; ', Herdini
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 4, No 2 (2017): Wisuda Oktober 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: Evaluation is one of the component parts that holds a very important role in learning system. One evaluation conducted is evaluation of students learning result. This study aims to determine the quality of the best items semester chemical subject exam. The object in this study is the second semester exam which amount 40 questions and the answer sheet of the students at class XII MIA SMA Negeri 1 Tapung Academic Year 2016/2017 as many as 71 students. This research is an ex post facto, meaning that the researcher didn’t manipulate the symptoms of research and the symptoms were already present in the real condition. Analysis in this research is qualitative analysis and the quantitative analysis (the difficulty degree, the differentiator, distractor function, validity and reliability). According to the analysis, known that from 40 questions, there are 30 questions acceptable of the matter criteria, 32 questions acceptable of the construction criteria, and 25 questions acceptable of the language/culture criteria. While in terms of this test having poor quantitative quality shown by the difficulty degree was good, the differentiator was not good, distractor function was not function effectively, the validity was enough and the reliability was low. From the quantitative analysis is 33 questions was repaired and 7 questions was rejected. Semester exam questions of class XII MIA SMA Negeri 1 Tapung needs a lot of improvement both in terms qualitative or quantitative.Keywords: analysis, qualitative, quantitative, distractor, validity, reliability.
PENGEMBANGAN LEMBAR KEGIATAN PESERTA DIDIK BERBASIS PROBLEM BASED LEARNING (PBL) UNTUK MENUNJANG PELAKSANAAN KURIKULUM 2013 PADA MATA PELAJARAN KIMIA SMA POKOK BAHASAN REAKSI REDUKSI OKSIDASI DAN TATA NAMA SENYAWA Rifkowati, Retno Eko; Holiwarni, Betty; ', Herdini
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 4, No 2 (2017): Wisuda Oktober 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: This study aims to develop a student worksheet based on problem based learning on reduction and oxidation reaction subject in the Chemistry Education Study Program. The result of this research and development is student worksheet product which can be used by students in the process of learning. The method used in this research consists of 4 development stages namely define, design, develop, and disseminate or adapted into 4-P Method, which is pendefinisian, perancangan, pengembangan, dan penyebaran. The development model is modified by the researchers only until the development stage. Recapitulation of the average score of the assessment of the four aspects of student worksheet by the validator team, content, language, presentation, and successive graphics have 89.16%, 91.67%, 90%, and 89.56%. Thus, the overall average score of student worksheet validation the oxidation-based reduction reaction based on Problem Based Learning is 89.59%. Based on the eligibility criteria of learning tools in Riduwan (2012), the criteria of 89.59% analysis included in valid category.Keywords : Student worksheet, Problem Based Learning, Reduction and Oxidation Reaction.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE THE LEARNING CELL UNTUK MENINGKATKAN PRESTASI BELAJAR PESERTA DIDIK PADA MATERI IKATAN KIMIA DI KELAS X MIPA SMAN 5 PEKANBARU Rahman, Abdul; ', Herdini; Linda, Roza
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 4, No 1 (2017): Wisuda Februari 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: The research about the learning cell type of cooperative learning model has been conducted in SMAN 5 Pekanbaru. The purpose of this research is to improve the student achievement on the topic chemical bond in class X MIPA SMAN 5 Pekanbaru. The type of this research is experimental research with experiment design randomized control group pretest-posttest. Sample of the research consisted of two classes, a class X MIPA4 as an experimental class (implemented the learning cell type of cooperative learning model) and class X MIPA3 as the control class (without the learning cell type of cooperative learning model). T-test was used as analysis technique. Based on the data analysis obtained t > t table (1.80 > 1.67), meaning that the application of the learning cell type of cooperative learning model can improve the student achievement on the subject chemical bond in class X MIPA SMAN 5 Pekanbaru. The improvement of the student achievement category (N-Gain) as high as 0.73.Keywords: Student Achievement, The Learning Cell Type, Cooperative Learning, Chemical Bond.
PENERAPAN STRATEGI PEMBELAJARAN AKTIF RODA KEBERUNTUNGAN UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN KOLOID DI KELAS XI IPA SMA NEGERI 5 PEKANBARU Karmila, Widya; ', Herdini; ', Erviyenni
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 4, No 1 (2017): Wisuda Februari 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: The research aims to improve the learning achievement of student on the subject of Colloid in class XI IPA SMAN 5 Pekanbaru. The research is a kind of experiment research with pretest-posttest design. The samples of this research were the students of class XI IPA 1 as the experiment class and students of class XI IPA 3 as the control class randomly determined after the test of normality and homogeneity test. Experiment class is a class that is applied to active learning strategy of lucky wheel while the control class was not. Data analysis technique used is the t-test. Based on data analysis of data obtained tcount > ttable is 4,78502 > 1,67, means that the use of learning active strategy of lucky whell can improve the learning achievement of students on the subject Colloid in class XI IPA SMAN 5 Pekanbaru with an increase of 22,92%.Keywords :Learning Achievement, Active Learning Strategy of Lucky Wheel, Colloid
Co-Authors ', Abdullah ', Erviyenni ', Hasnah ', Miharty ', Rasmiwetti ', Ristina ', Susilawati Abdul Rahman Abdullah Abdullah Aldresti, Fitri Anggraini, Devi Sri Betty Holiwarni Darmizah, Fitri ‘Alaina Diny Oktariani, Diny Dishadewi, Praslita Erviyenni Erviyenni, Erviyenni Gita M.S, Rentha Irawan, Rifa Pujiati Jhon Azmi Jhon Azmi, Jhon Jimmi Copriady Jimmi Copriady Jimmi Copriady Kamaliah, Dini Nur Karmila, Widya Lenny Anwar Lenny Anwar Miharty, Miharty Muhammad Rivai Nasution, Dessy Amalina Putra, Teja Pratama Putry Ayuningtyas Putry Ayuningtyas R. Usman Rery Ramadhan, Ahmad Khairu Relisia, Vezy Rifkowati, Retno Eko Roza Linda S, Ika Sulistya Sandra G, Cindy Eka Saraswati, Sri Shafiani, Nur Siti Nazhifah Siti Nazhifah Sri Haryati Stifany, Aldilla Syaputra, Yandri Wahidin Wahidin Wenas, Desy Muliana Wulandari, Putri Adita