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PENGEMBANGAN PENUNTUN PRATIKUM KIMIA BERBASIS GREEN CHEMISTRY UNTUK KELAS XI SMA/MA Debby Firmantia Putri; Yerimadesi
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 2 No. 1 (2019): Ranah Research : Journal Of Multidisciplinary Research and Development (Novembe
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.98 KB)

Abstract

Penuntun pratikum kimia berbasis green chemistry untuk kelas XI SMA/MA pada semester genap. Penuntun pratikum kimia ini dapat digunakan sebagai bahan ajar yang bisa membantu siswa dalam memahami konsep dalam pelaksanaan pratikum. Tujuan dari pratikum ini adalah untuk menghasilkan penuntun pratikum kimia yang valid dan praktis. Pada penelitian ini menggunakan jenis penelitian dan pengembangan atau Research and Development (R&D). Dengan model pengembangan Plomp. Instrumen penelitian yang digunakan berupa angket validitas dan praktikalitas. Formula kappa cohen digunakan untuk menganlisis data dalam penelitian ini.. Penuntun pratikum kimia ini divalidasi oleh 4 orang validator yang terdiri dari 2 orang dosen kimia dan 2 orang guru SMAN 5 Padang. Penuntun ini juga diujikan kepada 29 orang siswa kelas XII IPA SMAN5 Padang tahun ajaran 2019/2020. Hasil analisis lembaran validitas penuntun pratikum dikategorikan sangat tiggi dengan skor moment kappa 0,81. Praktikalitas penuntun pratikum kimia oleh guru dan praktikalitas penuntun pratikum oleh siswa dikategorikan tinggi menunjukan skor rata-rata moment kappa (k) adalah 0,72 dan 0,77. Data yang diperoleh menunjukkan penuntun pratikum kimia berbasis green chemistry sudah valid dan praktis.
Development of Buffer Solution Students’ Worksheet Based on Problem Based Learning with Ethnochemistry to Improve Students’ Science Literacy Ability Viola Dwicha Asda; Andromeda; Yerimadesi; Hardeli
Jurnal Penelitian Pendidikan IPA Vol 9 No 7 (2023): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i7.4369

Abstract

Merdeka curriculum emphasizes the ability of students to understand and apply their concepts to solve contextual problems. This research aimed to determine the validity, practicality, and effectivity of buffer solution students’ worksheet based on problem based learning with etnochemistry on students’ science literacy ability. The development model used in this research is 4-D. buffer solution students’ worksheet was validated by 3 chemistry lectures and 2 chemistry teachers. Practicality tests were carried out by 3 chemistry teachers and 32 students. Then, the level of effectiveness of buffer solution students' worksheet is known through the N-gain test. The validity test was analyzed by using aiken's v derived formula consisting the validity of the content and construct which was 0.91 and 0.90 with category valid. The results of the practicality of teachers and students was 88.80 and 87.75 with higher category. Analysis of the n-gain value obtained the results of the value of g = 0.86 in the high category. Then the date analyzed with quantitative method by using hypotheses testing, determined that the research hypothesis was accepted. This result confirmed that buffer solution students’ worksheet based on problem based learning with ethnochemistry was valid, practical, and effective to improving students’ science literacy ability significantly.
Literatur Review: Analisi Model Pembelajaran Blended Learning Dalam Pembelajaran IPA di Sekolah Dasar Apriani Sijabat; Palma Juanta; Festiyed; Yerimadesi
Jurnal Elementaria Edukasia Vol. 6 No. 2 (2023): juni
Publisher : Elementary Teacher Education Program, Majalengka University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jee.v6i2.5602

Abstract

The purpose of writing this article is to provide an overview of the learning process of blended learning and studies that examine the effect of blended learning models on learning outcomes. Where this can be used as a reference in the use of blended learning models in learning science. The method used is the method of meta-analysis which was carried out through studies in a number of international and national journals in the last 3 years. Sampling using a homogeneous sampling strategy. The samples in this study were 30 international and national journals that discussed the blended learning model, which in this case focused more on the effect of the blended learning model on student learning outcomes. Data were obtained using the results summary instrument and data analysis. The results of the research show that from several studies reviewed in the last 3 years, it is stated that the blended learning model is generally effective in improving student learning outcomes, especially in learning Natural Sciences. Therefore this blended learning model can be used as a learning model that can be used in science lessons at school.