In learning mathematics, critical thinking is needed to solve problems in various ways including interpreting, analyzing and evaluating. This study aims to analyze the critical thinking of third grade elementary school students in solving problems on the subject of fractions. This research used qualitative method. The data collection techniques used description tests and interviews. The description tests were reviewed based on four critical thinking indicators, namely interpreting, analyzing, evaluating and inference. This qualitative data processing technique is reducing data, presenting data, and drawing conclusions. The validity of the data was carried out using a triangulation technique, namely the results of student description tests, and interviews were triangulated to obtain a description of students' critical thinking skills in solving math problems with fractions. The results showed that students with high critical thinking met the four indicators as much as 13.79%; students who had moderate critical thinking only met two indicators as much as 34.48%, and students who had low critical thinking did not meet the four indicators as much as 51.72%. In conclusion, students' critical thinking skills were low. They could not understand the problem well and had not solved it properly. Meanwhile, students who think highly critically are able to understand questions about fractions, to analyze, to choose the right method, and to conclude clearly and logically.
The problem in this research is the lack of students' ability to solve problems and the lack of use of interactive quizzes in learning. The purpose of this study is to analyse differences in the ability of students to solve math problems with Quizizz interactive quizzes and Liveworksheets. This research uses a quantitative research type using a Quasi Experiment approach. The data collection in this study used interviews and a problem-solving ability test in the form of open essay questions. This study sample is two class devided into an experimental class that will apply the Quizizz interactive quiz and an experimental class that will apply the interactive Liveworksheet quiz. The data analysis of this research was started by using validity test, reliability test, discriminatory power test, difficulty level test, normality test, homogeneity test, and hypothesis testing on Post-Test questions. The results showed Post-Test data using the Liveworksheet interactive quiz, the average score obtained was 22.8, while the class using the Quizizz interactive quiz had an average of 19.4. It can be concluded that the Liveworksheet interactive quiz is better than the one using the Quizizz interactive quiz, because it can make it easier for students to use it when understanding the material and working on essay questions, besides that students are more enthusiastic about working on questions because they are competing to get the highest score, and students are able to develop mathematical problem solving to improve their way of thinking.
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