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Efektivitas Pendekatan Saintifik dalam Meningkatkan Keterampilan Proses Sains pada Materi Pemisahan Campuran Yustina Retno Kusuma Wardani; Noor Fadiawati; Lisa Tania
Jurnal Pendidikan dan Pembelajaran Kimia Vol 6, No 1 (2017): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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This research was aimed to describe the effectiveness of scientific approach to enhance students science process skills and students scientific attitudes on mixtures separation topic. The method used was quasi experiment by using the matching only pretest-posttest control group design. The population of this reasearch was all of seventh grader students of SMPN 22 Bandarlampung 2016-2017 with class VIIB and VIID as sample. Samples was done by purposive sampling technique. The effectiveness of scientific approach was determined by the enhancement of n-gain value of students science process skills which were tested statistically by using t-test and the enhancement of scientific attitudes. The results showed that implementation of scientific approach was effective to enhance students science process skills and scientific attitudes in the learning of mixtures separation topic.Penelitian ini bertujuan untuk mendeskripsikan efektivitas pendekatan saintifik dalam meningkatkan keterampilan proses sains dan sikap ilmiah siswa pada materi pemisahan campuran. Metode penelitian yang digunakan adalah quasi eksperimen dengan desain the matching only pretest-postest control group design. Populasi pada penelitian ini adalah seluruh siswa kelas VII SMP N 22 Bandarlampung tahun pelajaran 2016-2017 dengan kelas VIIB dan VIID sebagai sampel. Pengambilan sampel diperoleh dengan teknik purposive sampling. Efektivitas pendekatan saintifik ditentukan dari peningkatan n-gain keterampilan proses sains siswa yang diuji secara statistik dengan uji t dan peningkatan sikap ilmiah. Hasil penelitian menunjukkan bahwa pembelajaran dengan pendekatan saintifik efektif dalam meningkatkan keterampilan proses sains dan sikap ilmiah siswa pada materi pemisahan campuran.Kata Kunci: keterampilan proses sains, pemisahan campuran, pendekatan saintifik, sikap ilmiah.

PENGEMBANGAN E-BOOK INTERAKTIF BERBASIS REPRESENTASI KIMIA PADA MATERI LARUTAN ELEKTROLIT DAN NONELEKTROLIT Fajar Arrasyid; Nina Kadaritna; Lisa Tania
Jurnal Pendidikan dan Pembelajaran Kimia Vol 6, No 2 (2017): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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This study aimed to develop and describe the characteristic, the teacher and students responses, constraints and supporting factors on developing interactive e-book based on chemical representation. This study used RD method by Borg Gall which interactive e-book based on chemical representation as research subjects. Based on expert judgment in validity testing, this e-book wasin very high level for content suitability and attractiveness aspect. The teachers responses to those aspects was in very high level. The students responses to attractiveness aspect also in very high level with positive responses from teacher and students. Based on the result, this e-book was valid and feasible to be used.Penelitian ini bertujuan untuk mengembangkan, mendeskripsikan karakteristik e-book, respon guru dan siswa terhadap e-book interaktif berbasis representasi kimia, kendala-kendala dan faktor pendukung pengembangan e-book. Metode penelitian yang digunakan adalah metode penelitian dan pengembangan menurut Borg Gall dengan subyek penelitian yaitu e-book interaktif berbasis representasi kimia. Berdasarkan hasil validasi ahli terhadap e-book yang dikembangkan, diperoleh kategori sangat tinggi pada aspek kesesuaian isi dengan kurikulum dan aspek kemenarikan. Hasil respon guru terhadap kedua aspek tersebut memiliki kategori sangat tinggi. Hasil respon siswa terhadap aspek kemenarikan dari segi desain, perpaduan warna, gambar, dan animasi juga memiliki kategori sangat tinggi dengan respon positif yang diberikan dari guru dan siswa. Dari hasil penelitian, dapat disimpulkan e-book hasil pengembangan valid dan layak untuk digunakan.Kata Kunci: E-book, larutan elektrolit dan nonelektrolit, representasi kimia.

Efektivitas Pendekatan Saintifik dalam Meningkatkan Pemahaman Konseptual pada Pemisahan Campuran Nadya Putri Aulia; Noor Fadiawati; Lisa Tania
Jurnal Pendidikan dan Pembelajaran Kimia Vol 6, No 1 (2017): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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This research was aimed to describe the effectiveness of scientific approach to enhance conceptual understanding and scientific attitudes on mixtures separation topic. The method used was quasi experiment by using the matching only pretest-posttest control group design. The population of this research was all of seventh grade students in odd semester at SMP N 22 Bandarlampung in the academic year 2016-2017 and it was obtained class VIID and VIIB as the samples by purposive sampling. The effectiveness of scientific approach was determined by enhancement of n-gain value of students conceptual understanding and students scientific attitudes. The results showed that implementation of scientific approach was effective to enhance conceptual understanding and scientific attitudes in the learning of mixtures separation topic.Penelitian ini bertujuan untuk mendeskripsikan efektivitas pendekatan saintifik dalam meningkatkan pemahaman konseptual dan sikap ilmiah siswa pada materi pemisahan campuran. Metode penelitian yang digunakan adalah quasi eksperimen dengan desain the matching only pretest-posttest control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas VII semester ganjil SMP N 22 Bandarlampung Tahun Pelajaran 2016-2017 dan diperoleh kelas VIIB dan VIID sebagai sampel penelitian dengan menggunakan teknik purposive sampling. Efektivitas pendekatan saintifik ditentukan dari peningkatan n-gain pemahaman konseptual siswa yang diuji secara statistik dengan uji-t dan peningkatan sikap ilmiah siswa. Hasil penelitian menunjukkan bahwa pembelajaran dengan menggunakan pendekatan saintifik efektif dalam meningkatkan pemahaman konseptual dan sikap ilmiah siswa pada materi pemisahan campuran.Kata kunci: pemahaman konseptual, pemisahan campuran, pendekatan saintifik, sikap ilmiah

Keterampilan Proses Sains (KPS) Siswa pada Materi Laju Reaksi Menggunakan LKS Berorientasi KPS Uci Agustina; Noor Fadiawati; Lisa Tania
Jurnal Pendidikan dan Pembelajaran Kimia Vol 6, No 3 (2017): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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This quasi experimental research using the matching only pretest-posttest control group design aimed to describe the effectiveness of Science Process Skills (SPS) oriented students worksheets in increasing students SPS at reaction rate topic. Population in this research was all students of XI IPA at SMA Muhammadiyah 2 Bandar Lampung in 2016/2017 academic year. The sample were obtained by total sampling technique with XI IPA 1 as an experimental class and XI IPA 2 as a control class. The data analysis techniques used in this research were the calculation of pretest value, posttest value, and n-gain of students SPS. The results revealed that the posttest average value of the students in the experimental class was higher than control class. Moreover, the average of students n-gain in experimental class and control class were 0.53 (medium criteria) and 0.30 (medium criteria), respectively. It can be concluded that the SPS oriented students worksheets were effective to improve students SPS.Penelitian kuasi eksperimen dengan desain the matching only pretest-posttest control group design bertujuan untuk mendeskripsikan efektivitas LKS berorientasi KPS dalam meningkatkan KPS siswa pada materi laju reaksi. Populasi dalam penelitian ini adalah siswa kelas XI IPA di SMA Muhammadiyah 2 Bandar Lampung Tahun Pelajaran 2016/2017. Sampel diperoleh dengan teknik sampling total dengan kelas XI IPA 1 sebagai kelas eksperimen dan XI IPA 2 sebagai kelas kontrol. Teknik analisis data yang digunakan dalam penelitian ini menggunakan perhitungan nilai pretes, postes, dan n-gain KPS siswa. Hasil penelitian menunjukkan bahwa nilai rata-rata postes kelas eksperimen lebih tinggi dibandingkan kelas kontrol. Selain itu, rata-rata n-gain siswa kelas eksperimen dan kelas kontrol berturut-turut sebesar 0,53 (kriteria sedang) dan 0,30 (kriteria sedang). Sehingga, dapat disimpulkan bahwa LKS berorientasi KPS efektif dalam meningkatkan KPS siswa.Kata kunci: keterampilan proses sains, laju reaksi, LKS

Efektivitas Pendekatan Saintifik dalam Meningkatkan Keterampilan Berpikir Kritis pada Materi Pemisahan Campuran Wayan Gracias; Noor Fadiawati; Lisa Tania
Jurnal Pendidikan dan Pembelajaran Kimia Vol 6, No 1 (2017): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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This study was aimed to describe the effectiveness of scientific approach to enhance students critical thinking skills and scientific attitudes on mixtures separation topic. The method used was quasi experimental by using the matching only pretest-posttest control group design. The population of this research was all of seventh grader students of SMPN 22 Bandarlampung and it was obtained class VIIB as experiment class and VIID as control class. The samples were obtained by purposive sampling technique. The effectiveness of scientific approach was determined by the enhancement of n-gain value of students critical thinking skills which were tested statistically by t-test and also determined by students scientific attitudes. The results showed that implementation of scientific approach was effective to enhance students critical thinking skills and scientific attitudes in the learning of mixtures separation topic.Penelitian ini bertujuan untuk mendeskripsikan efektivitas pendekatan saintifik dalam meningkatkan keterampilan berpikir kritis dan sikap ilmiah siswa pada materi pemisahan campuran. Metode penelitian yang digunakan adalah quasi eksperimen dengan desain the matching only pretest-posttest control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas VII SMP Negeri 22 Bandarlampung dan diperoleh kelas VIIB sebagai kelas eksperimen dan kelas VIID sebagai kelas kontrol. Sampel penelitian tersebut diperoleh melalui teknik purposive sampling. Efektivitas pendekatan saintifik ditentukan dari peningkatan n-gain keterampilan berpikir kritis siswa yang diuji secara statistik dengan uji t dan peningkatan sikap ilmiah siswa. Hasil penelitian menunjukkan bahwa pembelajaran dengan pendekatan saintifik efektif dalam meningkatkan keterampilan berpikir kritis dan sikap ilmiah siswa pada materi pemisahan campuran.Kata kunci: keterampilan berpikir kritis, pemisahan campuran, pendekatan saintifik, sikap ilmiah

An Indonesian-version of the short attitude toward mathematics inventory: a voice from pre-service chemistry teacher Andrian Saputra; Lisa Tania
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 3: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i3.27718

This study aimed to examine the validity of the Indonesian version of the short attitude toward mathematics inventory (ATMI). The adapted inventory was also used for further analysis to explore mathematics attitude of pre-service chemistry teachers across gender. The original ATMI was translated into Bahasa and distributed to 328 participants via the online survey. After preliminary checking for multivariate outliers, all the data were used to analyze the construct validity of structural model using confirmatory factor analysis (CFA). Furthermore, multigroup analysis with structured mean modelling was conducted to explore the gender effect toward mathematics attitude. All item means, standard deviations and correlation matrix were also explored. The result found that the short form supported the four-factor solution as the original ATMI. Modification indices, standardized regression weight, and squared multiple correlations were used to determine which items to be removed or retained during analysis until standard criteria for model fit reached. This items deletion produced a shorter version of ATMI (19 items) with fairly good internal consistency, both for all items inventory (α=0.92) or for individual subscale (mean α=0.86). Moreover, the t-test on the latent mean value showed no significant difference of attitude toward mathematics between male and female.

Molecular Simulation Assisted Discovery Learning to Improve Higher Order Thinking Skills in Chemical Equilibrium Concepts Andrian Saputra; Lisa Tania
Jurnal Pendidikan MIPA Vol 22, No 2 (2021): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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The purpose of this study is to describe the effectiveness of discovery learning assisted by molecular simulation to improve higher order thinking skills in chemical equilibrium materials. The method used in this study was a quasi-experimental with the matching only pretest-postest control group design. The population were all students of XI MIA MAN 1 Bandar Lampung in the academic year 2019/2020. The sample was XI MIPA 5 as an experimental class and XI MIPA 6 as a control class obtained by purposive sampling technique. The data analysis technique used was the t test. The results showed the n-gain average of students' high-level thinking skills in the molecular simulation assisted learning class were 0.78 with high criteria, whereas in the control class was 0.58 with medium criteria. The t-test results showed students n-gain in the experiment class was significantly higher than control class. It can be concluded that the discovery learning model assisted by molecular simulations was effective in improving students' higher order thinking skills.Keywords: chemical equilibrium, discovery learning models, higher order thinking skills, molecular simulation DOI: http://dx.doi.org/10.23960/jpmipa/v22i2.pp315-323

Analysis of Students Readiness in Online Learning During The Covid-19 Pandemic Andrian Saputra; Lisa Tania
Jurnal Pendidikan MIPA Vol 21, No 2 (2020): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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The educational paradigm, which was originally face-to-face based, has shifted to virtual education or e-learning especially during the Covid-19 pandemic. Student readiness is an important factor in the success of e-learning. In this study, an analysis will be carried out on the readiness of students in online learning and the relationship and its effect on learning outcomes. This research procedure includes several stages, namely: (1) adapting the instrument based on a literature review, (2) analyzing the validity of the content and distributing the instrument to the research sample, and (3) evaluating research data, examining correlation, and its effect on learning outcomes. The data obtained were analyzed statistically through reliability analysis and Pearson correlation. The research sample consisted of 120 students of chemistry education at the FKIP, University of Lampung. Based on the results of statistical tests obtained results. Based on the research results, it was found that all dimensions of student readiness in online learning had a significant positive correlation with learning outcomes with a sig <0.05. Based on the linear regression test, it was found that student readiness in online learning had an effect on learning outcomes by 20.6%. It can be concluded that student readiness in online learning has an effect on learning outcomes. Keywords: student readiness, online learning, learning outcome, Covid-19 pandemic. DOI: http://dx.doi.org/10.23960/jpmipa/v21i2.pp163-169

Scientific Attitude of Prospective Science Teachers in Indonesia: A Psychometric Evaluation Lisa Tania; Andrian Saputra
Jurnal Pendidikan MIPA Vol 23, No 2 (2022): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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The purpose of this study was to evaluate the scientific attitude of prospective science teacher students as well as to validate the scientific attitude assessment instrument that had been developed (Moore & Foy, 1997). This research procedure includes adapting the instrument, analyzing the content validity, delivering the instrument to sample and evaluating the research data. The data obtained were analyzed statistically using factor analysis techniques to determine the contribution of each item, analysis the reliablity and Pearson product moment correlation. The research sample was 525 prospective science teachers who were taken by using random technique at University of Lampung. The results showed that scientific attitude consisted of 4 main factors, namely science is about understanding, explaining, and aiming to help other people's lives better (factor 1), I want to become a scientist (factor 2), the task of a scientist (factor 3), and science is rigid (factor 4). Furthermore, factor 3 and factor 1 as the dominant scientific attitude possessed by students, followed by factor 2 and factor 4. The scientific attitude was dominated by the understanding that science is about understanding and explaining scientific facts and the obligations of a scientist. . But they themselves do not really want to be a scientist. The structural model was declared valid, and according to the model fit index criteria, χ2 / df, GFI, AGFI, RMR, RMSEA, CFI, NFI, dan IFI with successive values of 1.331/(p < 0.05); 0.981; 0.968; 0.022; 0.025; 0.91, 0.988; 0.954; 0.937. Keywords: scientific attitude, academic achievement, factor analysis DOI: http://dx.doi.org/10.23960/jpmipa/v23i2.pp419-427

Development of Science Literacy-Based Cognitive E-Assessments on Chemical Bonds Lisa Tania; Andrian Saputra; Fresti Hendriani; Hilna Diana Sahaya
Jurnal Pendidikan MIPA Vol 23, No 4 (2022): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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This study aims to develop scientific literacy-based cognitive e-assessments on chemical bonds and describe the validity, teacher responses, and student responses to the developed e-assessment. The research design used in this study was a research and development (R&D) design according to Gall, Borg, & Gall (1996). The instruments used in this study were expert validation questionnaires, teacher response questionnaires, and student response questionnaires. The data obtained from validators, teachers, and students were then analyzed by descriptive statistical analysis method. This scientific literacy-based cognitive e-assessment uses 4 aspects of scientific literacy, namely aspects about the knowledge needed for intelligent participation in science-based social problems, aspects about the ability to think critically about science and dealing with scientific expertise, aspects about understanding science and its applications, and aspects about understanding science and its applications. knowledge of the risks and benefits of science. This e-assessment was created to measure students' scientific literacy. The results of expert validation and teacher responses on aspects of content suitability, construction aspects, and readability aspects indicate a very feasible category. The results of student responses on the construction aspect and the readability aspect showed the criteria were very feasible. Thus, the scientific literacy-based cognitive E-assessment on the chemical bonding material developed can be said to be valid and feasible to use.Keywords: cognitive e-assessment, chemical bonding, scientific literacy.DOI: http://dx.doi.org/10.23960/jpmipa/v23i4.pp1320-1327

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