The purpose of this study is to determine the effect of implementation virtual labs  through discovery learning in senior high school. The population of the study was students of  SMAN 12 Padang and the sample was two classes with cluster random sampling technique. Students were divided into two groups: experimental and control group. The research instrument used for competency of attitude is observation sheet, for competence of knowledge is multiple choice and for skill competence using working assessment. Based on the results of the research, it can be concluded that for the three competencies shows the results that the experimental class is better than the control class.

This research aims to see how effect of HOTS-oriented worksheets on heat and kinetic theory of gases on students' critical and creative thinking ability with guided inquiry model in grade XI SMA Al-Istiqamah Pasaman Barat. The type of research used is quasi-experimental. In this research, two classes were used as the sample class, where class XI IPA 1 was the experimental class and class XI IPA 2 was the control class. The difference in treatment between the two classes is that in the experimental class the product given is HOTS-oriented worksheets while in the control class the product given is conventional student worksheets in schools. For the treatment equation in the two classes, the learning model used is the guided inquiry learning model. The technique for collecting data was a written test with HOTS oriented questions. Critical and creative thinking skills are the basis for assessment in this research. The results of the study after being given treatment in both classes found that the highest skill score between the two classes was the value obtained by the experimental class. Based on the research that has been done, it is concluded that after being given treatment to the sample class, there is an increase in students' critical and creative thinking skills for each indicator. The improvement of students' critical and creative thinking skills on each indicator got higher results in the experimental class than the control class.

No abstract

No abstract

This study aims to see the effect of hots oriented job sheets with barcode assistance in online learning to the students' critical and creative thinking on heat and the kinetic theory of gases learning topic in grade xi of 1st harau district senior high school. This type of research is a quasi-experiment with a randomized only control group design. This study involved two classes, the first class as the experimental class using hots-oriented job sheets with barcode assistance and the second class as the control class. Data collection techniques in the form of a written test with a graded essay question model. The assessment is based on observable indicators of critical and creative thinking skills. data analysis using qualitative descriptive analysis techniques. The results showed that there was an increase in the ability to think critically and creatively. the experimental class was 57% and the control class was 12%. Based on the research results it can be concluded that: First, after implementing HOTS-oriented worksheets assisted by barcodes in online learning, there was an increase in students' critical thinking skills and creative skills in the experimental class. Second, there is a significant difference in the improvement of students' critical and creative thinking skills in the experimental class after implementing HOTS-oriented job sheets assisted with barcodes in online learning compared to the control class that did not apply the job sheets. Third, HOTS-oriented worksheets assisted with barcodes are very suitable to be applied in schools with an online learning system because they can improve students' critical thinking skills and creative thinking skills on heat material and the kinetic theory of gases.