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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) PENDIPA Journal of Science Education Jurnal Citra Magang dan Persekolahan
Muchlis
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics

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Development of Student Worksheet Oriented on PBL and Science Literacy to Improve Students' Critical Thinking Skills on Buffer Solution Material Fadhilatur Rochmatin; Muchlis
PendIPA Journal of Science Education Vol 7 No 2 (2023): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.7.2.208-216

Abstract

This research intends to create a student worksheet that can be used to help students enchance their critical thinking skills. Validity, practicality, and effectiveness are taken into consideration when evaluating the viability of a student worksheet. The validity of the student worksheet is evaluated by specialists. Practice was based on student responses supported by activities during learning. Meanwhile, effectiveness was based on improving students' critical thinking skills in terms of classical learning completeness, N-gain, and non-parametric statistical tests. This research employed the Research and Development method devised by Borg and Gall, with 18 students from grade XI SMAN 20 Surabaya serving as research subjects. The research instruments used were validation sheets, response questionnaires, student activity observation sheets, and pretest and posttest question sheets. The results indicated that the student worksheet was usable. The evaluation results show the validity of the student worksheet, which received a score mode of 5 with a very good category. The practicality of student worksheet is seen from the positive response of students with a range of 88.9%-100% which is categorized as very practical. It is also supported by activities that are more relevant than irrelevant activities. The effectiveness of student worksheet is shown by the 89% completion of classical learning, medium and high N-gain criteria with successive percentages of 38.89% and 61.11%, and hypothesis tests with Sig. < 0.05 values.
UPAYA PENINGKATAN HASIL BELAJAR KIMIA SISWA MELALUI MODEL DISCOVERY LEARNING PADA BAHAN TITRASI ASAM BASA Diyani Wahyu Ningsih; Muchlis
Jurnal Citra Magang dan Persekolahan Vol 1 No 2 (2023): Jurnal Citra Magang dan Persekolahan
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat STKIP Citra Bakti

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Abstract

This study aims to determine the improvement of learning outcomes by applying the Discovery Learning (DL) model on acid-base titration material. This research was conducted on phase F students, especially in class XI chemistry 2 totaling 35 students. This research method is Classroom Action Research consisting of 2 cycles of each cycle 1 meeting. The results obtained in this study are the learning outcomes of students. In cycle I, the number of students who have reached the minimum completeness criteria is 15 students (42.8%). In cycle II, the number of students who had reached the minimum completeness criteria was 29 students (82.8%). There was an increase in the percentage of completeness from cycle I to cycle II by 40.0%.
Development of the Student Worksheets Based on Assessment for Learning (AfL) to Improve Student Learning Outcomes of the Elements Periodic Table Galang Firman Syah; Muchlis
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10899

Abstract

This study aims to develop student worksheets based on assessment for learning to improve student learning outcomes on the elements periodic table, focusing on enhancing students' conceptual understanding. The study uses a 3D development model modified from the 4D model, consisting of three steps: define, design, and develop, applied to class X-7 at a school in Surabaya. Instruments for assessing validity include expert reviews of material and design, with a median score of ≥ 4, indicating content and construct validity. Practicality is measured through student response questionnaires and activity observations, with a positive response mode of ≥ 61%. The worksheet’s effectiveness is evaluated through the achievement of learning objectives, with an N-gain value showing 1 student (2.86%) in the medium category and 34 students (97.14%) in the high category. Posttest results show > 75% of students exceeding the passing grade. The Wilcoxon Signed Rank test shows a Pvalue < 0.05, indicating a significant difference in student learning outcomes. Based on these findings, the developed worksheet is deemed valid, practical, and effective in improving student learning outcomes.
Co-Authors Diyani Wahyu Ningsih Fadhilatur Rochmatin Galang Firman Syah