Development of Guided Inquiry-Based Worksheet as Teaching Materials on Elements, Compounds, and Periodic Table

The chemistry lecture at Universitas Nurtanio needs teaching materials innovation to increase students' activity and learning motivation. This research aims to develop worksheets on the material of elements, compounds, and the periodic table and determine the validity and practicality. The stages carried out in this study are the define, design, and development stages. The validity and practicality data analysis used the moment kappa (k) formula. The average validity and practicality are 0.87 and 0.77, respectively, with very high criteria. The validity and practical result indicate that a guided inquiry-based worksheet can be applied as teaching materials on elements, compounds, and the periodic table in lectures

Studi Komparatif Penggunaan Platform Zoom dan Google Classroom sebagai Media Perkuliahan Daring

In this study, a comparative study was conducted on the use of the Google Classroom and Zoom Meeting platforms during online lectures held at Nurtanio University. The object of research is students from various study programs at Nurtanio University, totaling 82 people. Data were obtained from questionnaires filled out by students on a google form with an ordinal scale. The questionnaire is divided into three components (lecture implementation, lecturer capabilities, and facilities and infrastructure) with a total of 15 statement items that compare perceptions of using Google Classroom and Zoom platforms. Overall, students gave a perception of the "good" category on the three assessment components with an average score for the Zoom and Google classroom platforms respectively 4.07 and 3.90 in the implementation of lectures, an average score of 4.06 and 3.96 for lecturer capabilities, and an average score an average of 3.84 and 3.76 for facilities and infrastructure. To find out whether there is a difference in student perceptions on the two platforms, a statistical test using SPSS is carried out, namely the Wilcoxon marked rank test. The results obtained are that there are differences in student perceptions on the use of the two lecture platforms, namely the perception of students using Google Classroom is better than using Zoom as evidenced by the Asymp score. Sig. (2-tailed) = 0.007 and Z value = 2.692.In this study, a comparative study was conducted on the use of the Google Classroom and Zoom Meeting platforms during online lectures held at Nurtanio University. The object of research is students from various study programs at Nurtanio University, totaling 82 people. Data were obtained from questionnaires filled out by students on a google form with an ordinal scale. The questionnaire is divided into three components (lecture implementation, lecturer capabilities, and facilities and infrastructure) with a total of 15 statement items that compare perceptions of using Google Classroom and Zoom platforms. Overall, students gave a perception of the "good" category on the three assessment components with an average score for the Zoom and Google classroom platforms respectively 4.07 and 3.90 in the implementation of lectures, an average score of 4.06 and 3.96 for lecturer capabilities, and an average score an average of 3.84 and 3.76 for facilities and infrastructure. To find out whether there is a difference in student perceptions on the two platforms, a statistical test using SPSS is carried out, namely the Wilcoxon marked rank test. The results obtained are that there are differences in student perceptions on the use of the two lecture platforms, namely the perception of students using Google Classroom is better than using Zoom as evidenced by the Asymp score. Sig. (2-tailed) = 0.007 and Z value = 2.692