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All Journal JURNAL TUNAS PENDIDIKAN Chimica Didactica Acta : Journal of Chemistry and Chemistry Education
Wiji Wiji
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Chemistry Education Languange, Linguistic, Communication & Media Mathematics Other

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PENERAPAN MODEL PEMBELAJARAN LBD UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR SISWA SMAN 1 BUNGO wiji wiji
Jurnal Tunas Pendidikan Vol 4 No 2 (2022): JURNAL TUNAS PENDIDIKAN
Publisher : LP3M STKIP Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.674 KB) | DOI: 10.52060/pgsd.v4i2.644

Abstract

This research is a class action research / CAR (Classroom Action Research) which aims to improve the activities and learning outcomes of students in class XI MIPA SMA N 1 Bungo through the application of the LBD learning model. This research was conducted at SMAN 1 Bungo, with the subjects being students of class XI MIPA 4 in the even semester of the 2019/2020 school year. The data in the study were obtained based on the results of questionnaires, interviews, learning observations and final learning outcomes. From the results of the student activity observation sheet, the percentage of student participation increased from the first cycle of 69.98% to 79.37% in the second cycle and has met the indicator of student participation, namely 75%. Based on the average value of learning outcomes obtained by students in the first cycle of 68.09, it increased to 74.81 in the second cycle and the percentage of classical completeness from 12.12% increased to 87.88% and this met the indicators of success, namely classical mastery reaching 85% with a KKM of 75. So it can be concluded that learning chemistry using the Laboratory Based Discovery (LBD) learning model can increase the activity and learning outcomes of students' chemistry on the colloid system concept.
DEVELOPMENT OF INTERTEXTUAL BASED LEARNING STRATEGY USING VISUALIZATION MODEL TO IMPROVE SPATIAL ABILITY ON MOLECULAR GEOMETRY CONCEPT Zulfahmi Zulfahmi; Wiji Wiji; Sri Mulyani
Chimica Didactica Acta Vol 9, No 1: June 2021
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.424 KB) | DOI: 10.24815/jcd.v9i1.20078

Abstract

This study aims to develop intertextual-based learning strategies using visualization models to improve students' spatial abilities on molecular geometry concepts. In this study using the method of Research and Development (R and D). The research subjects used were 20 high school 10th grade students. In this study the instrument used was in the form of an intertextual-based learning strategy validation sheet with visualization models, 3D visualization software, and spatial ability tests. Spatial ability consists of three indicators to be evaluated, namely spatial relations, spatial orientation, and spatial visualization. The results of intertextual-based learning strategy research with developed visualization models can improve spatial ability. Students can understand molecular geometry from the concept of VSEPR theory and valence bond theory. Results pre-test student on the spatial relations (26.67 percent), spatial orientation (10.10 percent), and spatial visualization (7.41 percent). After being tested intertextual-based learning strategies with visualization models of students' post-test results on the spatial relations (58.33 percent), spatial orientation (50.00 percent), and spatial visualization (27.78 percent).
Co-Authors Laksono Trisnantoro Sri Mulyani Zulfahmi Zulfahmi