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Students' low problem-solving skills and lack of activeness, especially in junior high school. One of the learning models that can be used to improve problem solving skills and student activity is the application of the Problem Based Learning (PBL) model. The purpose of this study is to improve the problem-solving ability and activeness of students through the PBL learning model in grade VII students of one of the junior high schools in Sragen Regency, Central Java, Indonesia. The method used in this study is Classroom Action Research (CAR). The data collection techniques used are exams, observations, documentation. Furthermore, for the validity of the data using triangulation techniques. Researchers use exams and observations to obtain data from the same source. The instruments used are cycle exams and observation sheets. Based on the results of data analysis, it was concluded that students' problem-solving ability and activeness have improved through the PBL learning model. There are four aspects of problem solving, namely: understanding the problem, planning the problem solving, implementing the problem solving plan, re-checking the correctness of the problem solving. There is an aspect of student activity that is measured by student involvement in group activities, class discussions, the ability to ask questions, the ability to answer, and the courage to appear in front of the class. The improvement in this case can be seen from the fulfillment of indicators in each aspect of problem solving and aspects of student activity. The result of this study is an improvement in every aspect of problem solving and every aspect of student activity. [ABSTRACT FROM AUTHOR]

The purpose of this study was to determine the effect of the Index Card Match Method in Mathematics Learning on the Learning Outcomes of Class VIII Students of SMPN 1 Pangkur. The research method used was a quasi-quantitative experiment with a population of class VIII students at SMPN 1 Pangkur. Sampling was carried out by cluster sampling technique, it was obtained that class VIIIB, which consisted of 32 students was the experimental class, and class VIIID, which consisted of 29 students as the control class. The instruments and data collection techniques used were multiple-choice tests and preliminary observation techniques to determine students' abilities. Data analysis techniques used descriptive quantitative namely descriptive analysis, normality test, homogeneity test, and independent sample t-test on the post-test results then presented in tabular form. The results of this study indicate that there is an effect of the Index Card Match method in learning mathematics on the learning outcomes of class VIII students of SMPN 1 Pangkur. The results of the data analysis carried out showed that the average posttest score for the experimental class was 78.59 and for the control class was 68.79. The average of the experimental class is higher than the control class. The results of the Independent Sample T-Test test for the Sig.(2-tailed) value were obtained at 0.003 <0.05 so that H0 was rejected and H1 was accepted, which means that there is a significant difference between the experimental class and the control class. 59 and the control class was 68.79. The average of the experimental class is higher than the control class. The results of the Independent Sample T-Test test for the Sig.(2-tailed) value were obtained at 0.003 <0.05 so that H0 was rejected and H1 was accepted, which means that there is a significant difference between the experimental class and the control class. 59 and the control class was 68.79. The average of the experimental class is higher than the control class. The results of the Independent Sample T-Test test for the Sig.(2-tailed) value were obtained at 0.003 <0.05 so that H0 was rejected and H1 was accepted, which means that there was a significant difference between the experimental class and the control class. [ABSTRACT FROM AUTHOR]

One of the goals of national education is that students have the ability to think critically. Students must be able to solve math problems, especially those related to story problems. This study aims to determine the differences in the ability of differences in critical thinking in shivas in solving mathematical problems in class VIII Mts Negeri 2 Grobogan students in review of the 2021/2022 school gender This research uses a qualitative type of research with a descriptive research design. The subject of this study consisted of 1 class with a total of 12 students. The data collection techniques in this study used three data collection techniques, namely tests, interviews, and documentation. The results of this study are for the critical thinking ability of high-level female students, all indicators are met, the medium level is only able to analyze, evaluate and present conclusions, while the low-level female students are only able to judge the truth and state conclusions. In the critical thinking ability of high-level male students all indicators are met, the medium level is only able to analyze, evaluate and realize conclusions, while low-level male students are only able to judge the truth and state conclusions. From the research above, the critical thinking ability of male students in solving the story problem of the two-variable linear equation system is overall lower than that of female students. [ABSTRACT FROM AUTHOR]

This study aims to determine students' number sense profile associated with their mathematical communication skills. The study used qualitative methods, in which data were obtained through math communication test, number sense test, and interviews. Mathematical communication test data were assessed and used to categorize students into three categories. The number sense profile was made based on the analysis of number sense test data and strengthened by the analysis of interview data from several research subjects who represented each category of mathematical communication skills. This study obtained three conclusions, namely: (1) Students with high mathematical communication skills have good number sense because they have confidence in problem solving, so that they can solve all problems related to number sense assessment indicators, (2) Students with medium mathematical communication skills have good number sense on several indicators, but the execution of other indicators is not perfect and requires improvement through the development of number sense in order to obtain a better number sense level, (3) Students with poor number sense, have low mathematical communication skills since they always tend to avoid the problems. They do not feel capable of solving the problems, therefore it is essential to provide guidance to help them improve. [ABSTRACT FROM AUTHOR]

The low ability to solve mathematical problems of Indonesian students based on the PISA survey shows that there is a need for innovation in managing learning. Therefore, the purpose of this study was to determine the effect of the STEAM integrated Problem Based Learning model on student achievement in terms of parental assistance. This type of quantitative research with experimental design compares the control class with the experimental class conducted at SMP Negeri 2 Kradenan in learning mathematics. The sampling technique used is cluster random sampling. Data analysis in this study using two-way analysis of variance. After using the two-way ANOVA test, a further independent sample t-test and LSD test were carried out. The results of the analysis showed that there was an effect of the STEAM integrated Problem Based Learning learning model on student achievement (Fcount = 4.96 and significance 0.031). The average value of the conventional model is 62.00 and Problem Based Learning integrated with STEAM is 74.42. Thus the STEAM integrated Problem Based Learning method is better than the conventional model. In addition, there is an effect of the level of parental assistance on student achievement (Fcount of 11.311 with a significant value of 0.000). The results of the LSD test show that there is an average difference between levels of mentoring, the higher the level of parental assistance, the higher the student's achievement. There is no interaction between the learning model and the level of parental assistance on student achievement. [ABSTRACT FROM AUTHOR]

The research aims to develop and produce student worksheets (LKPD) based on Project-Based Learning (PjBL) with an ethnomathematics approach assisted by origami that is valid and practical. This type of research is development research concerning the ADDIE stage which includes analysis, design, development, implementation, and evaluation. LKPD was validated by media experts and material experts as well as student responses using a questionnaire instrument. The results of the development show that the LKPD produced is valid and practical to use in learning mathematics on the subject of number patterns. [ABSTRACT FROM AUTHOR]

Education in Indonesia is still needed efforts to bring mathematics closer to reality and culture, one of which is by using batik from Yogyakarta. This study aims to explore the mathematical concepts related to the motif and process of making batik typical of Yogyakarta. This study uses qualitative research with an ethnographic approach. This study uses data collection techniques, namely observation, interviews, documentation and field notes. This study explores the cognitive, conceptual, and educational dimensions of the process and motifs of Yogyakarta's typical written batik. In the cognitive dimension in the coloring process/sogan and the Truntum motif, the Ceplok Purbonegoro motif, the Semen Rejo motif, the Sekar Jagad motif, mathematical concepts were found. The conceptual dimension is found in the process of making batik typical of Yogyakarta, such as in the process of measuring cloth using the traditional method by utilizing house tiles and in the process sogan or coloring using algebraic mathematical concepts. The dimension of education in the Parang Rusak motif is found in geometric mathematical concepts which have the meaning of fighting bad things. In the Truntum motif, the mathematical concept of a circle has a meaning like a tanjong flower. The Sekar Jagad motif has the shape of an ellipse and a circle where the motif has the meaning of pancapat means the four directions. The mathematical concepts of flat shapes, rhombuses, and triangles have a philosophy of repelling reinforcements. [ABSTRACT FROM AUTHOR]