The improvement of mathematical problem-solving ability was the aim of this study through the application of the Realistic Mathematics Education approach compared to conventional learning according to the students' self-efficacy level. This study used a quasi-experimental study with a static group design conducted in eighth-grade students at SMP Negeri 1 Kerinci and SMP Negeri 5 Kerinci. Data collected through the questionnaire to determine students’ self-efficacy level and the test of students’ mathematical problem-solving abilities. The hypothesizes was tested using a t-test.

This study aims to analyze the types of error and its factors that cause students’ error in solving operation research problems in the program linear topic based on Newman’s Error Analysis (NEA). This research is qualitative research by using a descriptive approach. The subjects in this study are fourth-grade college students in the Mathematics Education Program at State Islamic Institute of Kerinci that chosen by purposive sampling technique. The data was collected by using a test and interview. The data analysis was done descriptively.

Covid-19 pandemic had affected in paradigm changing of learning from face-to-face to online learning. It was not easily adapted by educators or students. This study aims to assessed responses from mathematics pre-service teachers about online lectures during the covid 19 outbreak. The research was a descriptive survey design that was conducted on 75 selected semester II-VI of math students in IAIN Kendari.  Responses were obtained by questionnaires and interviews that further were collected, sorted, and categorized base on an online lecture platform.

This study aims to describe the thinking process of students at the extended abstract level. The descriptive method used in this research is a qualitative approach. The instruments in this study included written test sheets and interview guides. Data analysis techniques used data collection, data reduction, display data, and concluding. The research subjects were two students who had reached the Extended abstract level on the SOLO taxonomy.

This study aims to determine the suitability of mathematics textbooks for eighth-grade with Trends in International Mathematics and Science Study (TIMSS) 2019 Mathematics Framework. This research uses a qualitative research method with a descriptive approach and content analysis techniques. The data of this research are the eighth-grade mathematics textbook. In the textbook analysis, the researcher used three textbooks, namely Penerbit Erlangga, Yudhistira, and the Ministry of Education and Culture (Kemendikbud).

In traditional teaching, many teachers often ignore the process of students' knowledge exploration, devote themselves to instilling knowledge to students in a short time, and then adopt the sea of questions tactics. Such teaching is only limited to the stage of telling students what "variance" is and how to use it, and ignores the birth process and meaning of "variance". The purpose of this research is to see the differences in classes that use dynamic mathematics software and traditional classes. The method in this research is descriptive qualitative.

This study aims to analyze students' mathematical connections in terms of their initial ability to material opportunities. This type of research uses a quantitative approach with a quasi-experimental method with the design of this research is the Two Group Pretest-posttest. The population of this study was all students of semester VI Physics Tadris UIN Sulthan Thaha Saifuddin Jambi, totaling 42 people. The sampling technique used was saturated sampling with research instruments in the form of test descriptions. Data were analyzed using a paired t-test test.

This study aims to examine the difference in Realistic Mathematics Education (RME) increase with students who obtain Autograph assisted discovery leaning, 2.The interaction between learning models and students initial mathematical abilities to students’ mathematical problem solving abilities. This type of research is quasi-experimental. The population in this study were all the students of class IX SMA Alwashliyah 3 Medan totaling 90 students. The sample selection is determined by randomly selecting two classes.

This study aims to determine (1) the mathematical fluency procedural ability of students taught using the peer lesson learning model and those not taught with the peer lesson learning model in class VIII, and (2) the effect of the peer lesson learning model on the mathematics procedural fluency ability of grade VIII students .

The purpose of this research is to test effectivitytrategy Think Talk Write (TTW) of the ability of problem solving mathematical, and test whether the differences efektivity between strategy Think Talk Write (TTW) with determine saintific of the ability of problem solving mathematical students. The kind of research this quasi his experiments with design research posttest only control group design. Population in research it is a whole students grade VIII of SMP Negeri 34 Batam which consisted of 279 students which are divided into 7 class.