Bambang Subali
Biology Education, Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta, Indonesia

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Note-taking roundhouse diagram strategy: improving student retention on body defense system concepts Desi Trilipi; Bambang Subali; Yenny Anwar; Lucia Maria Santoso
Biosfer: Jurnal Pendidikan Biologi Vol 12 No 2 (2019): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.63 KB) | DOI: 10.21009/biosferjpb.v12n2.157-169

Abstract

Note-taking Roundhouse diagrams strategy is a students' conceptual framework for interesting notes. This study aims to improve student retention on body defense system material through note-taking roundhouse diagram strategy. The method used was the one-group pretest-posttest design. The sample in this study was taken by simple random sampling technique. The number of samples in this study was 30 students. The instrument used in the study was a test instrument used multiple choice. This research was conducted during six meetings. Three meetings using roundhouse diagram with pretest and posttest. After four weeks, three more meetings were held to collect the second posttest (retest). The data were analyzed by t-test statistical analysis. Based on the results of the t-test statistical analysis at a significant level α = 0.05, it can be seen that t count > t table for short-term retention and long-term retention. The retention category also showed very satisfying results. Average results of N-gain score for short and long-term retention too very good. It can be included, the note-taking roundhouse diagram strategy on the body's defense system concept can improve student retention.
5E learning cycle combined with mind mapping in excretory system: effectiveness on curiosity Dhani Nugrahaningtyas Utami; Bambang Subali
Biosfer: Jurnal Pendidikan Biologi Vol 13 No 1 (2020): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (929.48 KB) | DOI: 10.21009/biosferjpb.v13n1.130-142

Abstract

Curiosity is one of the important characters developed in the 21st century. This study aimed to determine the effectiveness of the 5E (engage, explore, explain, elaborate, dan evaluate) learning cycle model combined with mind mapping on the curiosity of XI classes students in the excretion system material. This research was an experimental study with a non-equivalent pretest-posttest control group design. The study population included all students of XI science classes in Yogyakarta, Indonesia that amounted to 96 people. Samples were 32 for experimental as well as control group, with a total of 64 people. The instrument used was a non-test instrument in the form of a questionnaire consisting of 20 items. The validity of the instruments was good, and the reliability was very high, so the instruments were suitable to be used in data collection. Based on the results of data analysis using the Mann Whitney test, it was found that there were significant differences in the use of the 5E learning cycle model combined with effective mind mapping on student curiosity (p: 0.007 <0.05). It is recommended for Biology teachers to use the 5E learning cycle model with mind mapping to improve student curiosity in excretory material.