Scientific writing is essential for students to express their idea and to report their research. Problem-based learning model directs students to solve problems and report them in the form of scientific articles. The report is written logically and systematically. The research used a quasi-experiment method with 62 students as participants. The research was conducted in the Geography Education Program of Kanjuruhan University of Malang, Indonesia, academic year 2017/2018 on the course of Geography Natural Resource. The instruments used were essay tests and assessment rubrics for scientific writing. Data from problem-solving and scientific writing assessments were analysed with the Mann-Whitney test with a significance level of 5% after a prerequisite test. The results of the study showed that: problembased learning model has a significant effect on students' problem-solving skills, scientific writing skill, and together problem-based learning and problem-solving skills had significant effect scientific writing skill.
Critical thinking skills are very important to have for students given the rapid distribution of information. To promote the critical thinking skills of the student, it could be done by including critical thinking learning in a formal learning environment. However, for the purpose of increasing this skill could be achieved, it required the motivation to learn. This study aimed to increase critical thinking skills and students' motivation through the implementation of an inquiry mind map tool. The study used a quasi-experimental group with a non-equivalent control-group pretest-posttest. The experimental class used an inquiry learning assisted inquiry mind map tool, whereas the control class requires that conventional learning. The sample consisted of 206 students from different schools and different genders. Data on critical thinking skills used essay tests referred to indicators from Sari in 2019. Motivation data learning taken from instrument motivation toward science learning from Tuan, Chin & Shied in 2005. Answers analyzed using ANCOVA. The research findings show that there were differences in the ability to think critically and students' learning motivation using an inquiry mind map tool. The results also examined no difference between school and gender on critical thinking skills and learning motivation. The results of the study show that the inquiry mind map tool was an impact on increasing critical thinking skills and learning motivation. It was recommended to be able to develop more other learning tools and learning model to improve critical thinking skills. Some im-plication was also provided in the article.
This study aims to describe and test students' perception of scientific learning, students' critical thinking skill level in scientific learning, differences in perception and critical thinking skill level of students based on school differences and gender, and the influence of perception on students' critical thinking skill in scientific approach learning. It involved 206 students from three high schools in Banjarmasin, Indonesia. Quantitative data was obtained from a perception questionnaire and critical thinking skill test. The perception questionnaire refers to Perception of Science Classes Survey (PSCS). The test used refers to indicators of critical thinking skill from Ennis in 2011. Data were analyzed using non parametric statistical tests with the SPSS version 23 application for Windows. The results showed that 1) students' perception of scientific learning were in the medium category, 2) students' critical thinking skill level was in a low category, 3) there were differences in perception and critical thinking skill level based on school, but there are not any differences found based on gender, 4) there was an influence of perception towards students' critical thinking skill in scientific learning approach. Designing innovative learning methods, involving student activity, and providing recommend-ed learning facilities are suggested to do to enhance students' positive perception and critical thinking skill.
This article examines developing a community that cares about the environment through education in schools. As a place to study, Adiwiyata school has a special role in improving environmental literacy through green projects. The study used descriptive qualitative to determine the delay in green programs at Adiwiyata School at the high school level in Banda Aceh City. In addition, this study also wants to reveal the role ofAdiwiyataSchool in realizing school community who is responsible for environmental protection and management efforts through good school governance to support sustainable development. One of its roles is the development of student work through green projects. The research result revealed that green project encourages students to learn more effectively and creatively. Because students need the flexibility to think, act and channel various needs, abilities, and skills in meeting environmental needs. Competency development of students can be honed through real work such as products that utilize waste, contain articles, art training and so on. In addition,Adiwiyataprogrammeenhances learning and action, thus providing effective methods to improve student environmental literacy. Adiwiyataschool is expected to be an agent of change for the community in the environment around the school. The schools must be a model in realizing a healthy and comfortable environment as a model in realizing caring and cultured citizens of the school.
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