The Effectiveness of Microteaching With OMTA Model

Abstract The Microteaching course is a scaled down teaching subject that provides basic teaching skills and experience of teaching and learning student teacher. The general objective of the study was to determine the effectiveness of microteaching with the OMTA Model (Orientation, Modelling, Training, and Assessment) in the Biology Education of Universitas Pendidikan Ganesha. Specifically the research objectives were: 1) to find out and describe the learning outcomes of the Biology Education of Universitas Pendidikan Ganesha students who take Microteaching Classes with OMTA microteaching model, 2) to determine and effectively implement the OMTA microteaching model, 4) to determine student responses to Microteaching Classes using OMTA microteaching model. The research subjects were 18 Biology Education Department students who attended microteaching lectures in the sixth semester of academic year 2017/2018. The data were collected by observation, tests and questionnaires. They were analysed descriptively and statistically by one sample t-test. The results showed that the application of OMTA microteaching model was effectively used in microteaching lectures. In addition, the knowledge and teaching skills of students including categories are very good, the use of the OMTA microteaching model in lecture was very effective, and the students’ response was very positive.</jats:p

The Effectiveness of the Think Pair Share Model Based on Questions to Improve Students’ Participation and Students’ Learning Outcomes about Histology Structure of Digestive System

Abstract This study aimed to determine the effectiveness of Think Pair Share learning based on questions models to increase students’ participation and learning outcomes in studies of the histological structure of the digestive system. To achieve these objectives, research was conducted on the Biology study program at the Faculty of Mathematics and Natural Sciences, Ganesha University of Education. Research sample was the second semester students, amount of 17 students. The design of this study was one short case study. Instruments used in this study included questionnaires and observation sheets to assess students’ participation and responses in learning, and knowledge tests to assess student cognitive learning outcomes. The results obtained by the value of students’ participation were 47.1% in the good category and 47.1% in the very good category with an average value of 83.12. Cognitive learning outcomes obtained a mean value of 76.0. Students who got a greater or equal value of 70.0 were 76.5%. The conclusion of this research were that the Think Pair Share Learning model based on questions could increase students’ participation and learning outcomes in the study of the Histological Structure of the Digestive System.</jats:p

The Validity of Tri Hita Karana (THK) Oriented Blended Learning Tools to Improve Student’s Critical Thinking Ability

Abstract The aims of this study was to develop a valid Tri Hita Karana-oriented blended learning tools on anatomy and human physiology to improve students’ critical thinking in Biology. Learning tools in this study were developed using a 4D development model consisting of the following stages. 1) Define, 2) Desing, 3) Development stage, and 4) Diseminate. At present the research is at the stage of developing and validating learning tools. The validity test performed are content validity and construct validity. The content validity was carried out by finding the relevance of THK-oriented learning tools with the theory of blended learning and learning materials that were used as guidelines. The construct validity test was carried out by looking at the consistency of each component of THK-oriented learning tools with the blended learning learning characteristics obtained from the results of the validator’s assessment. Based on the validator’s assessment, the validity of the learning device in this study is classified as a very valid category. Furthermore, a limited trial is conducted to see the practicality and effectiveness of learning tools.</jats:p

The Effect of Flipped Classroom Based on Disaster Map Visualization in Disaster Mitigation Learning on Students’ Self-Efficacy and Critical Thinking Skills

Disaster mitigation material in geography learning requires not only critical thinking skills but also independence and optimism from students. In this regard, the effective approach needed relies not only on theory but also on practice in independent assignments and exercises. It makes limited face-to-face learning, which has been applied recently, unable to optimize learning outcomes. This study aims to analyze the impact of flipped classroom learning based on disaster map visualization on students' self-efficacy and critical thinking skills in disaster mitigation materials. The study used a quasi-experimental design with a pretest-posttest control group design. The research sample consisted of the experimental class (30 students) and the control class (30 students), which were determined randomly after the equivalence test. Data on critical thinking skills were collected using a test method in 10 description items, and self-efficacy data were collected using a questionnaire consisting of 30 statements. The data were analyzed using quantitative descriptive and inferential statistical analysis with MANOVA. The results show a significant effect simultaneously or partially with the sig value. 0.05, so it can be concluded that there is an effect of flipped classroom learning based on disaster map visualization on students' self-efficacy and critical thinking skills in disaster mitigation materials. </jats:p

Analysis of turmeric extract (cucurmadomestica) as natural preservative of tofu to SGOT levels and hepatic tissue structure of male white rats (rattusnorvegicus) wistar strain

Abstract The purposes of this research were: (1) to determine levels of SGOT (Serum Glutamate Oxaloacetate Transferase) of wistar rats after being given preserved tofu using water/aquadest, formalin, and turmeric extract with various concentrations, and (2) to identify histopathology images of rat liver after being given tofu which is preserved using formalin, turmeric extract, and soaked with water/aquadest. This true experimental research was designed with Randomized Post Test Only Control Group Design. The sample used was male white rat (Rattusnorvegicus) wistar strain of 40 individuals. SGOT levels were analysed using one way ANOVA statistic test and histopathology images of rat liver were analysed descriptively. The results of this research show that: (1) there has been different SGOT levels among male white rat (Rattusnorvegicus) wistar strain due to preserved tofu using turmeric extract withvarious concentrations of 20%, 40%, and 60%, (2) hepatic tissue structure of rats that is given tofu with turmeric extract 40% and 60% suffered from structural damage of its liver, while the rats given with tofu with turmeric extract 20% obtained a normal liver cell structure.</jats:p