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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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.096 KB)

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.037 KB)

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.

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