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Tasviri Efkar
FKIP Universitas Lampung, Jl. Prof. Dr. Soemantri Brojonegoro No.1
Computer Science & IT Decision Sciences, Operations Research & Management Education

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PENERAPAN PEMBELAJARAN SIMAYANG TIPE II PADA MATERI ASAM BASA Siti Hasanah; Sunyono Sunyono; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 1 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

The pre-experimental research with One Group Pretest-Posttest Design was aimed to describe the practicality and effectiveness of SiMaYang Type II learning in growing mental models and concept mastery of students in acid base topic. The research was conducted at the 11th grade of IPA1, IPA2 and IPA3 SMA Gajah Mada Bandar Lampung as replication classes. The data analysis was done descriptively. The results showed that the implementation of SiMaYang Type II learning have high practicality and effectiveness in growing mental models and concept mastery of students in acid base topic. Mental models of three replication classes have the criteria of "very bad, "bad," and "moderate" originally and they was increase to "moderate," "good," and "very good. The n-Gain average of mental models and concept mastery of three replication classes obtained the "high" and "moderate" achievement.Penelitian pre-eksperimen dengan One Group Pretest-Posttest Design telah dilakukan dengan tujuan untuk mendeskripsikan kepraktisan dan keefektivan pembelajaran SiMaYang Tipe II dalam menumbuhkan model mental dan peng-uasaan konsep asam basa siswa. Penelitian dilakukan pada kelas XI IPA1, XI IPA2, dan XI IPA3 SMA Gajah Mada Bandar Lampung sebagai kelas replikasi. Analisis data dilakukan secara deskriptif. Hasil penelitian menunjukkan bahwa penerapan pembelajaran SiMaYang Tipe II memiliki kepraktisan dan keefektivan yang tinggi dalam menumbuhkan model mental dan penguasaan konsep asam basa siswa. Model mental ketiga kelas replikasi yang semula berkriteria sangat buruk, buruk, dan sedang mengalami peningkatan menjadi sedang, baik, dan sangat baik. Rata-rata n-Gainmodel mental dan penguasaan konsep ketiga kelas replikasi memperoleh pencapaian tinggi dan sedang.Kata kunci: asam basa, kepraktisan, keefektivan, SiMaYang Tipe II.
EFEKTIVITAS MODEL PEMBELAJARAN NHT DALAM MENINGKATKAN PENGUASAAN KONSEP SISWA MATERI IKATAN KIMIA Helmayati Helmayati; Ratu Betta Rudibyani; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 1 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research aimed to describe the effectiveness of NHT learning model to increase the students concept in the chemical bonds topic. This research used quasi experiment method with non-equivalent (pretest-posttest) control group design. Population of this research was students of the 10th grade in SMA Tri Sukses Natar on 2012/2013 academic year. This research used two classes as sample where they were taken by using purposive sampling. The results showed that the average of n-Gain of students concept in experimental and control class were 0.58 and 0.49, respectively. Based on the results of hypothesis testing, NHT learning model was effective to increase students concept in the chemical bonds topic.Penelitian ini bertujuan untuk mendeskripsikan efektivitas model pembelajaran NHT dalam meningkatkan penguasaan konsep siswa materi ikatan kimia. Penelitian ini menggunakan kuasi eksperimen non equivalent control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas X SMA Tri Sukses Natar tahun ajaran 2012 /2013. Penelitian ini menggunakan 2 kelas sebagai sampel dimana sampel tersebut ditentukan menggunakan purposive sampling. Hasil penelitian menunjukkan bahwa nilai rata-rata n-Gain penguasaan konsep siswa untuk kelas eksperimen dan kelas kontrol masing-masing 0,58 dan 0,49. Berdasarkan hasil uji hipotesis, disimpulkan bahwa model NHT efektif dalam meningkatkan penguasaan konsep siswa ikatan kimia.Kata kunci: ikatan kimia, model pembelajaran NHT, penguasaan konsep siswa
PENERAPAN PROBLEM SOLVING UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR LANCAR PADA MATERI ASAM BASA Annisha Noor Diena; Ratu Betta Rudibyani; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 3 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research were intended to describe the practicality, effectivility, and effect size of problem solving model to improve fluency thinking abiltiy on Arrhenius acid base theory. This research used one group pretest postttest design in which the 11th grade of science-5, was choosen as sample based on cluster random sampling . The aspect of practicality was determined by lesson plan study implementation based on teacher observation and conspicuousness of model based on students response. The aspect of effectivi-lity was determined by average n-Gain of students`s concept mastery in exami-niation and student activity during the learning process. The aspect of effect size(r) was determined by mean of pretest and posttest in which r score was calculated by using Cohen`s formula. The result that problem solving model has high criteria of practicality and effectivility and large effect size to improve fluency thinking ability.Penelitian ini bertujuan untuk mendeskripsikan kepraktisan, keefektifan, dan ukuran pengaruh model problem solving dalam meningkatkan kemampuan berpikir lancar siswa pada materi asam basa Arrhenius. Penelitian ini menggunakan one group pretest posttest design dengan menggunakan teknik cluster random sampling diperoleh sampel kelas XI IPA5. Aspek kepraktisan ditentukan dari keterlaksanaan RPP berdasarkan obser-vasi guru dan kemenarikan model berdasarkan respon siswa. Aspek keefektifan ditentukan dari rata-rata n-Gain hasil penguasaan konsep di awal dan akhir pem-belajaran dan aktivitas siswa selama proses pembelajaran. Ukuran pengaruh(r) ditentukan dari rata-rata nilai pretes dan postes dengan nilai r dihitung meng-gunakan rumus cohen. Hasil penelitian menunjukan bahwa model problem solving memiliki kepraktisan dan keefektivan sangat tinggi serta memiliki ukuran pengaruh besar dalam meningkatkan kemampuan berpikir lancar siswa.Kata kunci :kepraktisan, keefektivitasan, problem solving, ukuran pengaruh
Penerapan Discovery Learning Dalam Meningkatkan Kemampuan Berpikir Orisinil Materi Elektrolit/Non Elektrolit Elya Rosa Kartika; Ratu Betta Rudibyani; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 6, No 1 (2017): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research was aimed to describe the practicality, effectiveness, and effect size of discovery learning model to improve the ability of the students original thinking of solution electrolyte and non electrolyte topics. The research sample was X.2 class at SMAN 6 Metro which it was obtained by using cluster random sampling. This research used poor experimental method with one group pretest-posttest design. Practicality was measured by implementation of discovery learning model and students response. Effectiveness was measured by basis of teacher ability, students activity, and the ability of the students original thinking used difference of two average test and effect size test. The result of this research shown that the practicality and effectivity of discovery learning model had high criteria, n-gain average was 0.70 and effect size was 0.98.Based on them, discovery learning model was practical, effective, and big effect size to improve the ability of the students original thinking of solution electrolyte and non electrolyte topics.Penelitian ini bertujuan mendeskripsikan kepraktisan, keefektivan, dan ukuran pengaruh modeldiscovery learningdalam meningkatkan kemampuan berpikir orisinil siswa pada materi larutan elektrolit dan non elektrolit. Sampel yang digunakan dalam penelitian ini adalah kelas X.2 di SMAN 6 Metro yang diperoleh dengan menggunakancluster random sampling. Penelitian ini menggunakan metodepoor experimentaldenganone group pretest-posttest design. Kepraktisan ditentukan berdasarkan keterlaksanaan modeldiscovery learningdan respon siswa. Keefektivan ditentukan berdasarkan kemampuan guru, aktivitas siswa, dan kemampuan berpikir orisinil siswa menggunakan uji perbedaan dua rata-rata dan uji ukuran pengaruh. Hasil penelitian menunjukkan bahwa kepraktisan dan keefektivan modeldiscovery learningberkriteria tinggi, nilai rata-ratan-gain sebesar 0,70 dan ukuran pengaruh sebesar 0,98. Berdasarkan hal tersebut, modeldiscovery learningpraktis, efektif dan memiliki ukuran pengaruh yang besar dalam meningkatkan kemampuan berpikir original siswa pada materi larutan elektrolit dan non elektrolit.Kata kunci:discovery learning, elektrolit dan non elektrolit, kemampuan berpikir orisinil
PENERAPAN SIMAYANG TIPE II UNTUK MENINGKATKAN MODEL MENTAL DAN PENGUASAAN KONSEP SISWA Ima Suryani; Sunyono Sunyono; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 3 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

The pre-experiment research with the purposes to describe practicality, effectiveness, and effect size of SiMaYang type II for upgrading the students mental model and concept mastery of atomic theory development had been done by using One Group Pretest-Posttest Design. The research result indicated that: percentage of the implementation and the students response about the application of SiMaYang type II learning model had high criteria. Result of data analysis indicated that the students activity during the learning and the teachers ability in processing of the learning had high category. The effect size indicated that learning with SiMaYang type II was practically and effective to be applied for upgrading the students mental model and concept mastery of atomic theory development.Penelitian pre-experimen ini bertujuan mendeskripsikan kepraktisan, keefektivan dan ukuran pengaruh SiMaYang tipe II untuk meningkatkan model mental dan penguasaan konsep siswa pada Materi Pokok Perkembangan Teori Atom yang telah dilakukan dengan One Group Pretest-Posttest Design. Hasil penelitian menunjukkan: persentase keterlaksanaan dan respon siswa terhadap penerapan model pembelajaran SiMaYang tipe II memiliki kriteria tinggi. Hasil analisis data menunjukkan bahwa aktivitas siswa selama pembelajaran dan kemampuan guru dalam mengelola pembelajaran memiliki kategori tinggi. Ukuran pengaruh menunjukkan bahwa pembelajaran dengan model SiMaYang Tipe II praktis dan efektif diterapkan untuk meningkatkan model mental dan penguasaan konsep siswa pada materi perkembangan teori atom.Kata kunci: model mental, penguasaan konsep, SiMaYang tipe II, ukuran pengaruh
EFEKTIVITAS PENDEKATAN ILMIAH DALAM MENINGKATKAN KEMAMPUAN BERPIKIR ORISINIL PADA MATERI LARUTAN PENYANGGA Titi Nurbaiti; Ratu Betta Rudibyani; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 2 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

The purpose of this study was to describe the effectiveness of a scientific approach in increasing original thinking ability on buffered solutions topic. This research population was all of students in the 11th grade of MIA at SMA Negeri 1 Bangunrejo for 2014/2015 academic year. This study used quasi experiment method with non equivalent control group design. The 11th grade of MIA2 and MIA3 were used as the sample classes of this research which were obtained by using purposive sampling technique. The result of this research showed that the average n-Gain of original thinking ability in the control class was 0.603 and in the experimental was class was 0.763. Based on t test the average of n-Gain both the research classes were different significantly. It could be concluded that learning by using scientific approach was effective in increasing original thinking ability on buffered solutions topic.Tujuan penelitian ini adalah untuk mendeskripsikan efektivitas pendekatan ilmiah dalam meningkatkan kemampuan berpikir orisinil siswa pada materi larutan penyangga. Populasi penelitian ini yaitu seluruh kelas XI MIA SMA Negeri 1 Bangunrejo tahun pelajaran 2014/2015. Penelitian ini menggunakan metode kuasi eksperimen dengan desain non equivalent control group. Hasil penelitian menunjukkan bahwa nilai rata-rata n-Gain kemampuan berpikir orisinil pada kelas kontrol sebesar 0,603 dan eksperimen sebesar 0,763. Berdasarkan uji t nilai rata-rata n-Gain kedua kelas penelitian berbeda secara signifikan. Berdasarkan hal tersebut dapat disimpulkan bahwa pembelajaran menggunakan pendekatan ilmiah efektif dalam meningkatkan kemampuan berpikir orisinil pada materi larutan penyangga.Kata kunci: kemampuan berpikir orisinil, larutan penyangga, pendekatan ilmiah
PENGEMBANGAN INSTRUMEN ASESMEN KINERJA PRAKTIKUM PADA MATERI ASAM BASA M Weddy Saputra; Ila Rosilawati; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 1 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research and development purposed to develop the practice-performance assessment instruments on acid-base and describe teachers response about it. The step in this study began from need analysis. Next, it was planning and developing preliminary product of the practice-performance assessment instruments. Then, preliminary field testing of the practice-performance assessment instruments was done. Analysis of the data used descriptive statistics. The results showed that suitability of content aspects, construction aspects, and readability aspects of the practice-performance assessment instruments are 82,76%, 82%, and 83%, respectively. It was concluded that the product has good criteria.Penelitian dan pengembangan ini bertujuan untuk mengembangkan instrumen asesmen kinerja praktikum pada materi asam basa dan mendeskripsikan tanggapan guru terhadap instrumen asesmen kinerja praktikum yang dikembangkan. Tahap pelaksanaan penelitian ini dimulai dari penelitian dan pengumpulan informasi. Langkah selanjutnya adalah perencanaan dan pengembangan produk awal instrumen asesmen kinerja praktikum yang dikembangkan. Lalu, melakukan uji coba terbatas terhadap instrumen asesmen kinerja praktikum yang dikembangkan. Analisis data yang digunakan adalah statistika deskriptif. Hasil penelitian menunjukkan persentase aspek kesesuaian isi, aspek konstruksi, dan aspek keterbacaan terhadap instrumen asesmen kinerja praktikum yang dikembangkan masing-masing adalah 82,76%, 82%, dan 83%. Hal ini dapat disimpulkan bahwa produk yang dikembangkan memiliki kriteria sangat baik.Kata kunci: asam basa, asesmen kinerja, pengembangan instrumen
PEMBELAJARAN MODEL SIMAYANG TIPE II PADA MATERI LARUTAN ELEKTROLIT DAN NON-ELEKTROLIT Napilah Fauziyah; Sunyono Sunyono; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 1 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research was aimed to describe the practicality and effectiveness of SiMaYang Type II learning model and characteristic of mental model and concept mastery of students. The 10th grade of IPA1, IPA2, and IPA3 in SMA Gajah Mada Bandar Lampung were taken as samples of this research. This research used pre-experiment method with One Group Pretest-Posttest Design. The results of this research showed that the practicality and the effectiveness of SiMaYang Tipe II were categorized on very high. Mental model of students changed from very bad and bad category to become good and very good category. This learning model was also able to improve n-Gain concept mastery at average category. Penelitian ini bertujuan untuk mendeskripsikan kepraktisan dan keefektivan model SiMaYang Tipe II serta karakteristik model mental dan penguasaan konsep siswa. Kelas X IPA1, X IPA2, dan X IPA3 di SMA Gajah Mada Bandar Lampung diambil sebagai sampel pada penelitian ini. Penelitian ini menggunakan metode pre-eksperimen dengan One Group Pretest-Posttest Design. Hasil penelitian menunjukkan bahwa model SiMaYang Tipe II memiliki kepraktisan dan keefektivan yang berkategori sangat tinggi. Model mental siswa berubah dari kategori buruk sekali dan buruk menjadi kategori baik dan baik sekali. Model ini juga mampu meningkatkan n-Gainpenguasaan konsep pada kategori sedang.Kata kunci: model mental, penguasaan konsep, SiMaYang Tipe II
EFEKTIVITAS DISCOVERY LEARNING PADA LARUTAN PENYANGGA DALAM MENINGKATKAN KETERAMPILAN MEMPREDIKSI DAN MENYIMPULKAN Eka Novita Suwisno; Ila Rosilawati; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 5, No 3 (2016): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

The goal of this research was describe the effectiveness of discovery learning model to improve skill to predict and concludes on buffer solution topic. The method of this research was quasi experiment with non equivalent pretest-postest control group design. This research used two classes as control and experimental class which they were obtained from four classes of the 11th grade at SMA Negeri 1 Bandar Lampung for 2015/2016 academic year by using purposive sampling. Learning was said to be effective if there were significant differencess between the n-Gain in the control and experiment class. The result showed that the average n-Gain of skills to predict and concludes in control and experiment class 0.32 and 0.46, respectively. Therefore, it can be inferred that on buffer solution topic used discovery learning model was effective skill to predict and concludes.Penelitian ini bertujuan untuk mendeskripsikan efektivitas model discovery learning dalam meningkatkan keterampilan memprediksi dan menyimpulkan pada materi larutan penyangga. Metode pada penelitian ini adalah kuasi eksperimen dengan non equivalent pretest-postest control group design. Penelitian ini menggunakan dua kelas sebagai kelas kontrol dan eksperimen yang diperoleh dari empat kelas XI di SMA Negeri 1 Bandar Lampung Tahun Pelajaran 2015/2016 dengan purposive sampling. Hasil penelitian menunjukkan bahwa nilai rata-rata n-Gain keterampilan memprediksi dan menyimpulkan pada kelas kontrol dan eksperimen masing-masing 0,32 dan 0,46. Dengan demikian, dapat disimpulkan bahwa pembelajaran materi larutan penyangga menggunakan model discovery learning efektif dalam meningkatkan keterampilan memprediksi dan menyimpulkan.Kata kunci: larutan penyanga, discovery learning, keterampilan memprediksi, keterampilan menyimpulkan
LKS MATERI LARUTAN ELEKTROLIT DAN NON-ELEKTROLIT BERBASIS MULTIPEL REPRESENTASI MENGGUNAKAN MODEL SIMAYANG Ina Putrizal; Sunyono Sunyono; Tasviri Efkar
Jurnal Pendidikan dan Pembelajaran Kimia Vol 4, No 1 (2015): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research aimed to describe the validity (eligibility), practicality, and effectivity of student worksheet as development product. The research used Research and Development method and the subject of the research was student worksheet. Student worksheet can be measured from the results of expert validation. Student worksheet can be seen from the results of the feasibility assessment, teacher and students responses. Student worksheet can be seen from the results of the assessment of student activity, self-efficacy, and increasing mastery of concepts. The result showed that student worksheet were valid (eligible), practicable, and effective to develop self-efficacy and mastering the concept.Penelitian ini bertujuan untuk mendeskripsikan validitas (kelayakan), kepraktisan, dan keefektivan LKS yang dikembangkan. Metode penelitian yang digunakan adalah metode Research and Development dengan subyek penelitian yaitu LKS. Kelayakan LKS dapat diukur dari hasil validasi ahli. Kepraktisan LKS dilihat dari penilaian keterlaksanaan, penilaian guru, dan respon siswa. Keefektivan LKS dapat dilihat dari hasil penilaian aktivitas siswa, efikasi diri, dan peningkatan penguasaan konsep. Hasil penelitian diperoleh bahwa LKS valid (layak), praktis, dan efektif digunakan untuk meningkatkan efikasi diri dan penguasaan konsep.Kata kunci: LKS, multipel representasi, SiMaYang
Co-Authors Ade Dwi Santika Ahmad Eko Purnomo Annisha Noor Diena Aulia Riska Safitri Delfi Afdila Dhaifina Trias Sukawati Dian Tri Oktavia S Dwi Citra Pertiwi Eka Novita Suwisno Elya Rosa Kartika Fitri Indriani Helmayati Helmayati Iin Fadilah Ila Rosilawati Ima Suryani Ina Putrizal Izu Khoirina Faiszatul Laili Ketut Sutamiati M Weddy Saputra Mahdalena Novitasari Purba Napilah Fauziyah Oktari Pradina Anggi Rahman Aryo Hananto Ratu Betta Rudibyani Sabila Izzati Sevi Karviyani Siti Hasanah Suci Yati Sari Sunyono - - Titi Nurbaiti Tri Hastuti Wibowo Tugiyah Tugiyah