Based on the teacher questionnaire statement in Plaju and Seberang Ulu II District , the teacher has measured critical thinking skills. The teacher interview results stated that students still did not master the critical thinking skills of Biology High School. The purpose of this study was to determine the percentage level of mastery of critical thinking skills of class X high school students in Plaju and Seberang Ulu II District. This research is a quantitative descriptive research; the sample used is a public high school representing the District of Plaju and Seberang Ulu II District. The results of this study indicate that, on average, the results of the percentage analysis of the level of student's critical thinking skills in class X high school in Plaju District is 49.46%, and Seberang Ulu II District is 56.52%. Both the percentage of indicators critical thinking skills in Plaju and Seberang Ulu II District are in the medium category.

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This research is motivated by the low results of students' mathematics learning. The purpose of this study was to find out whether the use of problem-based learning (PBL)-based modules was effective in increasing student learning outcomes in the material of one-variable linear equations and inequalities at SMP Negeri 29 Sijunjung. This type of research is experimental research using a quantitative approach with the one-group pretest-posttest design. The research population was all students of class VII SMP Negeri 29 Sijunjung. The sampling technique used in this study is random sampling. The sample class for this study was class VII 3. The research instrument used was the pretest and posttest, in the form of an essay test with a reliability of 0.696. Furthermore, testing the hypothesis using the t test. The results showed that after using PBL-based modules it had an average value of 71.96 and before implementing PBL-based modules it had an average value of 16.05. The results of the hypothesis test obtained tcount = 4.89 and ttable = 1.708, then tcount ttable so that the hypothesis is accepted. Thus it can be concluded that the Problem Based Learning (PBL) based module is effective in improving students' mathematics learning outcomes.

Fashion is a stylish dress equipped with accessories used every day by someone, be it in their daily life or at a particular event to support the appearance. This research was conducted with the knowledge to know the effects of product innovation and marketing tools to the competitive advantage of fashion products in the West Jakarta area. This study uses quantitative data, where the data use is primary data in the form of questionnaires and secondary data obtained from websites and institutions. The technique of collecting data using a survey with a Likert scale. The population is students who come from private universities in the area of West Jakarta. Samples of the study were 628 people and tested the instrument as many as 60 people. Data analysis methods used in this research include descriptive inferential, validity test, reliability test, normality test, correlation test and simple regression analysis, and multiple regression analysis using software processed by IBM SPSS Statistics 22. The results showed that product innovation and marketing tools have an effect on the competitive advantage of fashion products in the West Jakarta region with both have medium criteria. This means product innovation and marketing must be maintained and upgraded to achieve a High Competitive Advantage on Fashion products

Protista are one of the the subject is quite broad and there are many Latin terms and objects, most of which are micro organisms or living things that cannot be found and observed directly in everyday life, students are not enough to only have the ability to memorize but also need a complete understanding of the material such as can classify and classify protista through morphological observations. So that students need a media that is interesting to them and easy to understand. The purpose of this research to see the effectiveness of using scrapbook media on student learning outcomes in class X protista material at SMA Negeri 6 Pontianak. The form of the research is Quasi Experimental Design with the research design of Non equivalent Control Group Design. The sample of this research is class X MIA 2 (control class) and X MIA 3 (experimental class). Intact Group sampling technique. The instrument used is a multiple choice test with 20 questions. The average score of the experimental class students' learning outcomes was 15.40 while the control class's average score was 14.39. Based on the results of the Mann-Whitney U test, Z count . is obtained < Z table with a value of -2.74 < -1.96 so that it can be concluded that H0 is rejected and Ha is accepted, where there are differences in the learning outcomes of students who are taught using scrapbook media and students who are taught using image media. Based on the results of the Effect Size learning using scrapbook media, it got a value of 0.73 with the medium category meaning that the effectiveness of learning using scrapbook media on protista material was classified as moderate in improving the learning outcomes of class X students of SMA Negeri 6 Pontianak by 26.73%