The ability to solve problems is one of the abilities that students need to have in learning mathematics. Especially solving stories or non-routine questions, students really need to have the ability to solve these problems. Therefore, this study aims to determine and examine the ability to solve mathematical problems in solving one-variable linear equation (PLSV) material stories in junior hig…
Problem solving is one of the skills that is quite important for every student to have, because it is closely related to everyday life. To solve a mathematical problem, students are expected to be able to identify the adequacy of data, make mathematical forms, determine and implement strategies, present results, and apply mathematics in a meaningful way. Analysis of the difficulty of solving ma…
Critical thinking ability is an essential component of the four skills needed in the 21st century. However, this ability is still challenging to achieve well by students because of the lack of communication and cooperation during learning mathematics. Therefore, this experimental study with a posttest-only control design was conducted to determine the effect of using the jigsaw cooperative lear…
Evidence-based research on the effect of Realistic Mathematical Education (RME) has been conducted. However, whether differences in the measured variables alter the studies' effect sizes have not been explored. To fill this gap, it is necessary to conduct a meta-analysis study that can summarize the evidence for the effect of RME and analyze how the differences in the measured variables are ass…
This study aims to produce learning media based on a visual basic application of triangles and rectangles. This research is research and development. The method used in this research is a research and development method with a 4-D model (Four-D Model). This development model is modified into 3-D, only until the development stage (Develop). The instrument used in this study was a questionnaire u…
Cabri is characterized by an attractive advantage and provides wide-ranging benefits in the teaching of mathematics. Although today there have been many studies on the edges of Cabri, experiments on Cabri-Express have not been widely explored. For this reason, a quasi-experimental study with a randomized posttest only design involving 80 grade VII junior high school students in Ruteng, Indonesi…
This study aims to analyze the problem solving ability of high school students on trigonometry material. The method of this study is a qualitative descriptive method with the research subject of 30 students of class XI in one of the Kab. West Bandung. The data collection instrument used was in the form of a description test consisting of 4 questions with indicators of problem solving abilities.…
The problem discussed in this study is to find and analyze the error factors experienced by students in solving trigonometric problems. The subjects in this study were selected by purposive sampling. Where the subjects sellection based on the student’s ability that divided into 3 levels, high ability, medium ability and low ability. There are 3 subjects in total. The research method used …
The Covid-19 pandemic has led to distance learning (PJJ). This results in a lack of student motivation which leads to a decrease in learning outcomes. This study aims to increase students' learning motivation in the form of providing motivational videos. This study used purposive sampling with 10 students of class VII-B at SMPN 1 Margaasih. The researcher also uses Kemmis and Taggart's resea…
This research aims to develop android-based interactive learning media improves the problem solving skills of high school students in understanding the concept of geometric sequences and series. This type of research is development research with qualitative approach supported by quantitative data. Methods used research and development (R&D) that adapt ADDIE model. This CERMAT learning media inn…