Currently, a lot of learning focuses on cognitive achievement, which results in less involvement of students in learning. Whereas in the renewable curriculum students are required to have ability incognitive, affective and psychomotor. One of these psychomotor aspects is science process skills by applying inquiry model. This study aims to determine the effect of the implementation of guided inquiry-based practicum worksheets on colloid topics on students' science process skills. The research method used mixed research method research with concurrent triangulation designs. The research was conducted in Cimahi, involving 33 students of class XII and 5 validators consisting of two lecturers and three teachers. The research instruments were used self-assessment, observation sheets for practicum activities using guided inquiry-based worksheets, assessment of student worksheet’s assignments, and restricted-response essays. The enhancement of science process skills was calculated by the N-gain formula using pretest and posttest score and characterize into high, medium and low. The results showed that the improvement of student science process skills on the topic of emulsifiers was in the medium category with an N-gain value of 0.6. The implementation of the practicum using guided inquiry-based worksheets on the result of self-assessment obtained 82.0%, the results of observation obtained 82.9%, and the assessment of student’s assignment in the worksheets obtained 81.6% in which all in the very good category
In recent years, the development of information and digitalization is growing very rapidly, especially in the state of distance learning due to the COVID-19 pandemic. In addition, this era leads to the need for 21st-century skills possessed by students to be survived amid several disruptions in various conventional fields. Assignments based on project-based learning have been carried out to the chemistry students at Indonesia University of Education in the Basic Analytical Chemistry course to learn the effect of project based learning using youtube as the publication media to improve various 21st-century skills. 6 videos explained the advanced methods applied in the analytical chemistry field have been resulted in. These videos were uploaded to YouTube with a total of 2662 viewers, 1577 likes, as well as 235 comments. Descriptive studies were used as a research method to get some respon from students according to the implementation of 21st-century skills. In addition, we collected qualitative respons from viewers related to the content of explanatory videos that have been made. Through a survey, around 85% of students stated agree and strongly agree that this project-based learning could improve their collaboration skill (4.34/5 scale), scientific literature literacy (4.40/5), creative thinking (4,49/5), communication (4.54/5) as well as critical thinking (4.7/5). Finally, positive and supportive respon from audiences strengthened arguments that this assignment could be exercising the teaching and communication skills of students
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